ABBOTT Seamount 31 48'N - 174 18'E 5.06 * (November 1982) ABRAHAM Canyon 52 37'N - 172 20'E 813 * ABROLHOS Bank 18 30'S - 38 30'W 5.12 * ABROLHOS Ridge 18 00'S - 37 00'W 202 ADAK Canyon 51 25'N - 177 05'W 813 * ADAMS Seamount 50 01'N - 176 14'W 50-813 * ADARE Seamounts 70 10'S - 171 50'E 5.14, 5.18 ADELAIDE Bank 6 35'S - 56 47'E 70-71-73-702-703 INT Charts: (ED-1879) ADMIRAL ZENKER Seamount : See ZENKER Seamount AEGIR Ridge 64 50'N - 6 15'W to 67 30'N - 2 00'W 5.04, 5.17 * (December 1983) AFANASY NIKITIN Seamount 3 00'S - 83 10'E 5.09 70-71-73 * = NIKITIN Seamount AFRICANA Rise 46 00'S - 42 30'E 5.09 70-72 * = Bank AFRICANA Seamount 37 15'S - 29 10'E 5.09 21-70-72-204 * = AFRICANA Seamount AGADIR Canyon 30 40'N - 11 00'W 5.08 * AGASSIZ Fracture Zone 40 30'S - 138 00'W to 38 00'S - 125 00'W 5.11 * AGATTU Canyon 52 23'N - 172 35'E 813 * AGERHOLM Seamount 34 25'N - 135 35'W 50-51 * AGRIA Bank 16 30'N - 72 05'E 705 AGUILAS Seamount 37 15'N - 0 42'W 301 AGULHAS Bank 35 20'S - 20 45'E 5.09 204 * AGULHAS Basin 46 S - 10 E to 46 S - 30 E 5.09, 5.16 70-72 * AGULHAS Plateau 40 00'S - 26 00'E 5.09 21-22-70-72-204 AGULHAS Ridge 43 30'S - 7 00'E to 37 00'S - 18 30'E 5.12, 5.16 21-204 Formerly CAPE Rise AKADEMII NAUK Rise 49 30'N - 150 00'E 5.02 511 * and INT 511 = A.N.Rise AKTIVNESET 62 28'N - 3 38'E 101 Continental slope ALAGOAS Seamounts 9 45'S - 34 15'W 202-215 ALASKA Plain 55 00'N - 143 00'W 50-810 * ALASKA: *see GULF OF ALASKA Seamount Province ALBATROS Bank 22 50'N - 84 15'W 402 ALBATROS Plateau 10 00'N - 103 00'W 51-802-811 * = ALBATROSS ALBATROSS Bank 56 10'N - 152 20'W 810 * ALBATROSS Bank 17 42'N - 75 40'W 400-402 * (November 1986) ALBORAN Basin 35 50'N - 4 30'W to 36 25'N - 1 50'W 301 * ALDEN Seamount 49 05'N - 158 45'W 50 * ALEUTIAN Basin 57 00'N - 180 00' 5.02, 5.03 50-813-814 * ALEUTIAN Ridge 51 30'N - 178 00'W 813 * ALEUTIAN Rise 50 15'N - 175 00'E 5.02 * (December 1985) ALEUTIAN Terrace 50 40'N - 179 00'W 50-813 * ALEUTIAN Trench 54 00'N - 166 30'E to 54 00'N - 158 30'W 5.02, 5.03 50-810 * ALEXA Bank 11 35'S - 175 20'E 604 * ALEXANDER Seamount 18 57'N - 153 28'W 809 * ALGERIAN Basin 37 30'N - 2 00'E 5.05 301 * GEBCO-SCGN/7 ALGERIAN-TYRRHENIAN Trough 38 20'N - 9 35'E 301 * ALGOL Seamount 2 15'S - 84 30'W 5.11 811 * (April 1984) ALICE Shoal 16 05'N - 79 22'W 400-401-402-811 * ALIDADE Bank 35 44'N - 1 25'W 301 * ALIX Seamount 17 30'S - 61 20'E 5.09 70-71-72-702 * (April 1986) ALMIRANTE BROWN Canyon 45 25'S - 57 55'W 5.12, 5.16 200 * ALMIRANTE LEITE Bank 26 10'S - 35 03'E 70-72, 701 * = Knolls ALMIRANTE SALDANHA Seamount 22 20'S - 37 35'W 5.12 20-201-202 * INT Charts = Bank ALPHA Ridge 85 30'N - 120 00'W 5.17 * = Cordillera. ALPHECCA Seamount 18 20'N - 117 08'W 50-51-802 * ALSEK Valley 58 30'N - 139 30'W 50-810 * ALTAIR Seamount 44 35'N - 33 50'W 5.08 11-13-14-103 * ALULA-FARTAK Trench 13 00'N - 51 10'E to 14 50'N - 52 20'E 5.05 705 * GEBCO-SCGN/6 ALVARADO Ridge 5 20'S - 83 30'W 5.11 * AMAMI Plateau 28 10'N - 132 10'E 509 * AMAZON Canyon 3 30'N - 48 30'W 5.08, 5.12 * = Canyons. AMAZON Cone 4 30'N - 46 45'W 5.08, 5.12 12-216 * and INT 12 = Fan. GEBCO : should be Fan AMEGHINO Canyon 43 20'S - 57 20'W 5.12 200 * AMERICA-ANTARCTIC Ridge 60 15' - 20 00'W to 56 00'S - 4 30'W 5.16 AMERICA : See LITTLE AMERICA Basin, MIDDLE AMERICA Trench. AMERY Basin 68 15'S - 74 30'E 5.13 AMIRANTE Bank 5 45'S - 53 15'E 5.09 * AMIRANTE Basin 7 00'S - 54 30'E 702-703 * AMIRANTE Trench 8 00'S - 52 40'E 5.09 701-702 * AMLIA Basin 52 30'N - 173 00'W 813 * AMLIA Canyon 52 54'N - 173 15'W 813 * AMLIA Knoll 53 05'N - 173 53'W 813 * AMPERE Seamount 35 05'N - 12 55'W 5.08 11-12-14-103-104 * AMUKTA Canyon 53 10'N - 171 45'W 813 * AMUNDSEN Abyssal Plain 65 00'S - 125 00'W 5.15, 5.18 AMUNDSEN Basin 87 00'N - 10 00'W to 82 00'N - 130 00'E 5.17 * AMUNDSEN Ridges 69 15'S - 123 00'W 5.15, 5.18 AMUNDSEN Trough 70 30'N - 123 00'W 5.03 * (January 1985) 5.17 ANDAMAN Basin 10 30'N - 94 30'E 5.05, 5.06 706 * ANDAMAN-NICOBAR Ridge 12 00'N - 93 00'E 706 * ANDREW BAIN Fracture Zone 51 00'S - 28 52'E to 41 00'S - 35 21'E 5.09 GEBCO-SCGN/6 ANDREW Tablemount 6 45'N - 50 30'E 71-72, 703 * ANGOLA Abyssal Plain 12 45'S - 2 00'E 5.12 * = Plain ANGOLA Basin 9 00'S - 3 00'E to 21 00'S - 1 00'E 5.12 14-21-22-203-204-209 * ANIMAL Basin 31 20'N - 117 35'W 802 * ANNA DE KONINGH Seamount 53 22'S - 24 59'E 5.13 GEBCO-SCGN/6 ANTALYA Canyon 36 40'N - 30 45'E 5.05 * (September 1984) ANTARCTIC Canyon 71 30'S - 41 15'W 5.18 ANTARCTIC : See PACIFIC-ANTARCTIC Ridge ANTARES Bank 45 11'S - 49 46'E 70-72 ANTIALTAIR Seamount 43 35'N - 22 25'W 11-14-103 * ANTON BRUUN Ridge 9 00'S - 52 30'E 5.09 * ANTON DOHRN Seamount 57 25'N - 11 10'W 5.04 11-14-102 * APPLEQUIST Seamount 55 25'N - 142 45'W 50-810 * APUUPUU Seamount 18 34'N - 155 28'W 809 * AQUARIUS Seachannel 48 15'N - 157 15'W to 53 00'N - 155 20'W 5.03 GEBCO-SCGN/6 ARABIAN Basin 12 00'N - 65 00'E 5.05 71-72-73-703-705 * ARAFURA Shelf 10 00'S - 135 00'E 5.10 * ARCTIC MID OCEAN Ridge GEBCO-SCGN/7, see GAKKEL Ridge ARENA Canyon 38 58'N - 124 07'W 801 * ARGENTINE Abyssal Plain 47 00'S - 53 30'W to 48 00'S - 46 00'W 5.12, 5.16 20-201 * = Plain, GEBCO-SCGN/7 ARGENTINE Basin 43 00'S - 43 00'W 5.12, 5.16 22-200 * ARGENTINA Rise 42 00'S - 47 30'W 5.12 ARGENTINA Seamount 37 40'S - 18 10'E 5.12 21-22-72-204 * ARGO Bank 23 15'S - 159 30'E 5.10 60-602 * (November 1986) ARGO Fracture Zone 16 00'S - 63 00'E to 11 00'S - 69 00'E 5.09 * ARGO Plain 14 30'S - 116 00'E 5.10 * GEBCO-SCGN/7 ARGUELLO Canyon 34 21'N - 121 05'W 801 * ARGUELLO Terrace 34 30'N - 120 55'W 802 * ARROWSMITH Bank 21 05'N - 86 28'W 400-401 * ARUBA Gap 13 45'N - 72 00'W 12-13-400-402 * ARU Basin 5 30'S - 133 45'E 5.10 * ASCENSION Fracture Zone 7 45'S - 18 30'W to 6 00'S - 8 15'W 5.12 * ASHTON Seamount 38 00'N - 13 20'W 103 * ASQUITH Bank 8 45'S - 47 10'E 5.09 701-702 GEBCO-SCGN/6 = replaces WILKES Rise ASTERIAS Seamount 38 54'N - 65 18'W 403 * ASTORIA Canyon 46 15'N - 124 30'W 801 * ASTORIA Fan 45 15'N - 126 15'W 5.07 50-801 * ASTRID Ridge 68 00'S - 11 30'E 5.16, 5.18 * (June 1987) ATKA Basin 51 20'N - 174 00'W 813 * ATKA Seamount 50 16'N - 175 10'W 50-813 * ATLANTIC : See MID-ATLANTIC Ridge & NORTHWEST ATLANTIC MID-OCEAN Channel ATLANTIS Fracture Zone 30 45'N - 45 30'W to 29 00'N - 37 00'W 5.08 * ATLANTIC Seamount 34 05'N - 30 15'W 5.08 11-12-14 * ATLANTIS II Fracture Zone 29 30'S - 57 30'E to 37 00'S - 57 15'E 5.09 * ATWATER Valley 27 30'N - 87 30'W 5.08 * (November 1982) AURORA Canyon 65 00'S - 49 30'W 5.18 AUSTRAL Fracture Zone 20 30'S - 130 00'W to 18 30'S - 123 00'W 5.11 * AUSTRALIA : See NORTH AUSTRALIA Basin and SOUTH AUSTRALIA Basin AUSTRALIAN-ANTARCTIC Basin 58 00'S - 115 00'E to 58 00'S - 135 00'E 5.13 * = SOUTH INDIAN Basin GEBCO-SCGN/7 AUSTRALIAN-ANTARCTIC Discordance 49 00'S - 124 00'E 5.14 AVENZOAR Bank 36 30'N - 2 22'W 301 AVES Ridge 13 00'N - 63 30'W 5.08 400-402 * AZORES-BISCAY Rise 43 30'N - 17 30'W 5.08 * AZORES : See EAST AZORES Fracture Zone. BAGRATION Seamount 15 28'S - 6 27'W 5.12 203 GEBCO-SCGN-1988 BAHAMA Ridge 30 00'N - 75 25'W to 26 30'N - 74 40'W 5.08 GEBCO-SCGN/6 BAHAMA : See GREAT BAHAMA Bank BAHIA BLANCA Canyon 41 25'S - 55 25'W 5.12 200 * BAHIA Seamounts 14 25'S - 32 15'W 20-202-215 BAILEY : See OUTER BAILEY Bank and LOUSY Bank BAILEY'S : See BILL BAILEY'S Bank BAIRD Seamount 16 15'N - 162 20'W 50-51 * = Seamounts. BAJA CALIFORNIA Seamount Province 26 00'N - 124 00'W 50-51-802 * BAKER Seachannel 54 34'N - 137 15'W 810 * BALANUS Seamount 39 25'N - 65 23'W 403-404 * BALI Basin 7 45'S - 115 45'E 5.09, 5.10 * BALLENY Seamounts 65 40'S - 161 45'E 5.14, 5.18 BANDA : see NORTH BANDA Basin and SOUTH BANDA Basin. BANDERAS Canyon 20 30'N - 105 46'W 802 * BANZARE Bank 58 50'S - 77 00'E 5.13 * = Seamounts BARANOF Seachannel 55 00'N - 137 30'W 810 * BARBADOS Basin 12 00'N - 59 25'W 402 * = Trough BARBADOS Ridge 12 45'N - 59 35'W 12-13-400-402 * BARCOO Bank 32 35'N - 156 15'E 5.10 60-602 * = Tablemount, INT Charts = Seamount BARDIN Seamount 13 55'S - 53 40'E 5.09 70-71-72-702 * BARENTS Abyssal Plain 85 00'N - 40 00'E 5.17 * = Plain BARONIE Seamounts 40 35'N - 10 15'E 301-302 BARRACUDA Ridge 16 20'N - 57 15'W 5.08 BARREN Ridge (or BARREN-NICOBAR Ridge or BARREN ISLAND Ridge) 12 15'N - 93 30'E 706 * BASSAS DE PEDRO 13 00'N - 72 25'E 72-73-705 Bank BATAVIA Seamount 25 40'S - 100 30'E 5.09 70-73-708 * BAUER Basin 10 00'S - 101 00'W 5.11 * BAUER Fracture Zone 14 40'S - 101 30'W to 15 00'S - 98 00'W 5.11 * BAUER Scarp 10 00'S - 104 45'W 5.11 * BEAN Seamount 52 15'N - 147 00'W 50-810 * BEAR Seamount 39 55'N - 67 25'W 12-13-403-404 * BEATA Ridge 16 00'N - 72 30'W 5.08 400-402 * BELEM Ridge 0 20'N - 41 00'W 5.12 12-13 * BELGICA Bank 78 15'N - 12 30'W 5.17 * BELGRANO : See GENERAL BELGRANO Bank BELLINGSHAUSEN Abyssal Plain 63 00'S - 85 00'W 5.15, 5.18 * = Plain BELLINI Seamount 32 42'N - 163 11'W 50-51 * BELLONA Gap 40 00'S - 165 45'E 5.10 * BENGAL Fan 17 00'N - 89 00'E to 6 00'N - 85 00'E 5.05 * = GANGES Fan GEBCO-SCGN/7 BERGEN Bank 60 00'N - 2 30'E 101 BERING Canyon 54 08'N - 168 15'W 5.03 813 * BERLANGA Ridge 8 30'N - 95 00'W 5.07 * = Rise GEBCO-SCGN/63 BERLIN Seamount 32 51'N - 166 00'W 50 * BERMUDA Rise 32 40'N - 62 30'W 5.08 11-12-13-400-403 BETTY Guyot 29 20'S - 174 00'E 5.10 BIGHT Fracture Zone 57 00'N - 35 30'W to 56 45'N - 30 00'W 5.04 BILL BAILEY'S Bank 60 35'N - 10 20'W 5.04 11-14-102 * = BILL BAILEYS BISCAY Abyssal Plain 45 30'N - 7 00'W 5.08 103 * = Plain BISHOP Seamount 18 50'N - 159 02'W 50-51-809 * BIZET Seamount 32 16'N - 161 38'W 50-51 * BJORNOYA Bank 75 20'N - 21 00'E 5.17 10 * = SPITSBERGEN Bank, INT Charts = SPITSBERGEN Bank BLACKFIN Ridge 26 00'N - 159 00'W 50-51-809 * BLAKE Escarpment 28 30'N - 76 40'W 5.08 * BLAKE Plateau 29 30'N - 78 30'W 5.08 * BLAKE Ridge 31 15'N - 74 45'W to 28 50'N - 72 45'W 5.08 * = BLAKE = BAHAMA, GEBCO-SCGN/6 BLANCO Fracture Zone 44 30'N - 130 20'W to 43 30'N - 127 30'W 5.07 * BLIGH : See GEORGE BLIGH Bank BLOSSOM Bank 17 51'N - 77 59'W 400-401-402-403-811 BODEGA Canyon 38 14'N - 123 35'W 801-802 * BOGOROV Ridge 42 40'N - 136 20'E 511 * = Seamount BOLLES Knoll 49 00'N - 157 45'W 50 * BOLLONS Seamount 49 50'S - 176 30'W 5.14 61 * = Tablemount BONAIRE Basin 11 25'N - 67 30'W 402 * BONAPARTE Seamount 15 40'S - 7 00'W 5.12 21-22-203 * BONE Basin 6 00'S - 121 30'E 5.10 * BORCHGREVINK Canyon 70 15'S - 170 15'E 5.18 BOREAS Abyssal Plain 77 00'N - 1 00'E 5.17 * = Plain BORIS KARASEV Bank 46 07'S - 83 55'W 5.11 GEBCO-SCGN/7 = subject to confirmation BOSEI Seamount 37 08'N - 145 20'E 511 BOUGAINVILLE Reef 15 32'S - 147 05'E 5.10 * BOUNTY Plateau 48 30'S - 179 00'E 5.14 60-600 INT Charts = Platform BOUNTY Trough 46 15'S - 178 00'E 5.10 60-600 * BOUTELLE Seamount 39 01'N - 131 05'W 50-51-801 * BOUVET Fracture Zone 54 45'S - 1 00'E to 53 30'S - 3 10'E 5.16 * (June 1987) BOWDITCH Seamount 32 44'N - 64 33'W 403 * BOWERS Bank 54 20'N - 179 40'E 5.02 813 * BOWERS Basin 53 30'N - 176 00'E 5.02 813 * BOWERS Canyon 71 12'S - 173 30'E 5.18 * BOWERS Canyon 52 50'N - 179 25'W 813 * BOWERS Ridge 55 00'N - 176 45'E to 53 00'N - 179 30'W 5.02, 5.03 50-813 * BOWERS Seamount 54 05'N - 174 47'E 50-813 * BOWIE Canyon 52 34'N - 179 00'E 813 * BOWIE Seamount 53 20'N - 135 40'W 5.03 50-801-810 * BOYD : See LOUISE A. BOYD Bank. BRAHMS Seamount 31 09'N - 162 19'W 50-51 * BRASILIAN Abyssal Plain 10 00'S - 25 00'W 201-202-215 BRATEGG Bank 64 50'S - 68 10'W 5.18 * BRAZIL Basin 15 00'S - 25 00'W 5.12 12-14-21-22-201-202-215 BRIGHAM Seamount 19 08'N - 158 44'W 809 * BRISBANE Guyot 26 55'S - 155 05'E 5.10 60-602 * = Tablemount, INT CHARTS = Seamounts BRISTOL Canyon 54 55'N - 169 00'W 5.03 813 * BRITANNIA Guyots 28 15'S - 155 40'E 5.10 60-602 * = Tablemounts, INT Charts = Seamounts. BROKEN Ridge 30 45'S - 92 15'E to 32 15'S - 98 15'E 5.09 70-73-708 * GEBCO = Plateau BROOKS Banks 24 05'N - 166 50'W 809 * BROUWER Seamount 31 52'S - 109 00'E 5.09 * BROWN Bank 21 30'N - 74 44'W 400-401-402-403 * (April 1984) BROWN Bank 10 40'N - 117 15'E 507 * = Reefs BROWN BEAR Seamount 46 01'N - 130 25'W 50-801 * BROWN Seamount 55 00'N - 138 30'W 50-810 * BROWN : See ALMIRANTE BROWN Canyon BRUCE Ridge 60 00'S - 34 45'W to 61 15'S - 37 30'W 5.16 * GEBCO-SCGN/7 BRUUN : See ANTON BRUUN Ridge BRYAN Seamount 17 55'N - 152 44'W 51-809-810 * BUFFON Canyon 65 15'S - 145 00'E 5.18 BULLARD Fracture Zone 58 00'S - 14 15'W to 58 00'S - 5 30'W 5.16 *(July 1983) GEBCO-SCGN/6 BULLDOG Bank 10 02'S - 50 45'E 5.09 * BURDICK Knoll 45 51'N - 157 48'W 50 * BURDWOOD Bank 54 15'S - 59 00'W 5.16 20-200 * BYRAMGORE Reef 11 55'N - 71 46'E 71-72-73 BYRD Canyon 75 25'S - 157 15'W 5.18 BYRD : See MARIE BYRD Seamount CABLIERS Bank 35 42'N - 2 15'W 301 * CABRILLO Seamount 22 50'N - 109 15'W 802 * CAICOS Bank 21 35'N - 71 55'W 400-402-403 * CALIFORNIA Seamount 17 50'N - 124 00'W 50-51-802 * CALOOSAHATCHEE Seamount 34 40'N - 49 45'W 12-13 * CAMPBELL Plateau 50 40'S - 171 00'E 5.14 60-600 * CAMPBELL Rise 52 30'S - 170 00'E 5.14 * = Spur CAMPBELL Seamount 50 16'N - 141 55'W 50-810 * CAMPECHE Bank 22 00'N - 90 00'W 5.07, 5.08 * CANADA Abyssal Plain 76 00'N - 150 00'W 5.17 * = Plain CANADA Basin 72 30'N - 150 00'W to 83 00'N - 130 00'W 5.17 * CANARY Basin 30 00'N - 24 00'W 11-12-14-104 * CANO Seamount 10 16'N - 110 00'W 802 * CANTOR Seamount 16 19'N - 109 22'W 51-802-811 * CAP BRETON Canyon 43 45'N - 2 30'W 5.08 * CAP HORN Seamount 36 41'S - 78 52'E 5.09 GEBCO-SCGN - Dec. 1987 CAPE Abyssal Plain 35 15'S - 11 45'E 5.12 CAPE Basin 35 45'S - 6 45'E 5.12 21-22-203-204 * CAPE JOHNSON Tablemount 17 08'N - 177 15'W 809 * CAPEL Bank 25 00'S - 159 35'E 5.10 602 * = Tablemount CAPE Rise See AGULHAS Ridge CAPE VERDE Abyssal Plain 23 00'N - 24 00'W 5.08 14 * = Plain CAPE VERDE Plateau 17 50'N - 20 00'W 5.08 12-14-104-215 * = Terrace CAPE VERDE Seamount 15 20'N - 22 00'W 14 * CAPRICORN Seamount 18 40'S - 172 10'W 5.10 60-605 * = Tablemount CARDNO Guyot 12 57'S - 6 05'W 5.12 21-22-203 * = (April 1984) Tablemount CARGADOS CARAJOS Bank 16 30'S - 59 30'E 5.09 * CARLISLE Canyon 53 28'N - 170 15'W 813 * CARLSBERG Ridge 10 00'N - 58 00'E to 0 00' - 67 00'E 5.05 71-72-73-703 * CARMEN Basin 26 15'N - 110 30'W 5.07 802 * CARNEGIE Ridge 1 00'S - 89 00'W to 1 00'S - 82 00'W 5.11 51-811 * CARNEGIE Seamount 0 15'S - 81 53'W 811 * CAROLINE Seamounts 7 15'N - 144 00'E to 6 00'N - 157 15'E 5.06 * = Ridge CAROLINE : See EAST CAROLINE Basin and WEST CAROLINE Basin CARONDELET Reef 5 33'S - 173 50'W 617 * CARYN Seamount 36 40'N - 67 56'W 11-12-403 * CASCADIA Basin 46 40'N - 128 00'W 5.03, 5.07 50-801 * CASCADIA Seachannel 43 30'N - 130 00'W 50-801 * CATALINA Basin 33 10'N - 118 30'W 801 * CAUVIN Bank 6 46'S - 72 22'E 702-703 CAYMAN Ridge 19 00'N - 82 20'W to 19 45'N - 79 00'W 400-402 * CAYMAN Trench 18 50'N - 81 30'W to 19 20'N - 78 40'W 5.08 12-13-400-402-403 * CAY SAL Bank 23 45'N - 80 00'W 400-401-403 * CEARA Abyssal Plain 6 00'N - 41 30'W 5.08, 5.12 12-13-20-216 * = Plain CEARA Plateau 3 20'S - 37 30'W 12-13-20-216 * (March 1985) CEARA Ridge 6 00'N - 45 00'W to 3 30'N - 41 00'W 5.08, 5.12 12-13-20-216 * = AMAZON Ridge, GEBCO-SCGN/6 CEARA Seamounts 1 30'S - 38 45'W to 1 45'S - 37 05'W 20-216 * PARNAIBA Ridge CEARA Terrace 2 15'S - 39 00'W 12-13-20-216 * (March 1985) CEDROS Escarpment 27 20'N -115 30'W 802 * CEDROS Trench 28 00'N - 116 00'W 5.07 802 * CELEBES Basin 3 00'N - 122 00'E 5.06 508 * CELTIC Shelf 50 00'N - 8 00'W 5.04 * CENTRAL Bank 75 00'N - 37 00'E 10 * = MURMANSK Rise CENTRAL Fracture Zone 18 00'N - 128 10'E to 15 00'N - 132 30'E 5.06 509 * =CENTRAL Basin Trough, INT Charts=CENTRAL Basin, Fault CENTRAL INDIAN Ridge 5 00'S - 68 00'E to 25 00'S - 70 00'E 5.09 70-71-72-73 * = MID-INDIAN Ridge CENTRAL KARA Rise 80 30'N - 80 00'E 5.17 CENTRAL PACIFIC Basin 9 00'N - 180 00' 5.06, 5.07, 5.00 506 * CENTURION Bank 7 40'S - 70 50'E 70-71-72-73-702 CERMENO Seamount 10 23'N - 108 46'W 802-811 * CERRALVO Seamount 24 12'N - 109 35'W 802 * CHAGOS Bank 6 15'S - 72 00'E 5.09 70-71-72-73-702-703-707 (see also GREAT CHAGOS Bank) INT Charts = GREAT CHAGOS Bank * (April 1986) CHAGOS Trench 9 00'S - 73 00'E to 3 30'S - 74 15'E 5.09 70-71-72-73-702-703-707 * CHAGOS-LACCADIVE Ridge 13 30'N - 72 30'E to 9 00'S - 70 30'E 5.05, 5.09 CHAIN Fracture Zone 2 30'S - 20 00'W to 0 30'N - 10 00'W 5.12 202-215-216 * CHAIN Ridge 5 00'N - 53 30'E 5.05 71-72-703 * CHALLENGER Deep 11 20'N - 142 15'E 5.06 * (November 1982) CHALLENGER Fracture Zone 37 00'S - 90 00'W to 35 00'S - 80 00'W 5.11 *= 34 00'S - 110 00'W CHALLENGER Plateau 39 20'S - 168 40'E 5.10 60-600-601 * CHALLENGER : See GLOMAR CHALLENGER Basin CHAMPLAIN Seamount 20 15'S - 37 20'W 5.12 * CHARCOT Canyon 67 30'S - 80 00'W 5.18 CHARCOT Deep-Sea Fan 66 30'S - 90 00'W to 65 10'S - 82 30'W 5.18 CHARCOT Seamounts 44 50'N - 13 00'W 5.08 103 * (September 1983) CHARLIE GIBBS Fracture Zone 52 30'N - 45 00'W to 52 15'N - 30 00'W 5.04 11-14-102 * = December 1983) CHARLOTTE Bank 11 45'S - 173 10'E 604 * CHATHAM Rise 43 30'S - 180 00' 5.10 60-600 * CHAUCER Seamounts 42 50'N - 28 55'W 5.08 11-14-103 INT Charts = Bank CHAUTAUQUA Seamount 22 10'N - 162 40'W 50-51-809 * CHELAN Seamount 49 45'N - 131 32'W 50-801 * CHERBANIANI Reef 12 20'N - 71 50'E 71-72 CHILE Basin 28 00'S - 77 00'W 5.11 * CHILE Fracture Zone 36 30'S - 102 00'W to 35 45'S - 93 00'W 5.11 * CHALLENGER Fracture Zone 34 00'S - 110 00'W CHILE Ridge 45 50'S - 77 30'W 5.16 CHILE Rise 40 00'S - 90 00'W 5.11 * CHILE Trench 51 45'S - 76 30'W to 56 50'S - 70 00'W 5.15 CHILE : See PERU-CHILE Trench CHINA : See SOUTH CHINA Basin CHINCHORRO Bank 18 35'N - 87 22'W 400-401 * CHINOOK Trough 44 00'N - 173 00'W 5.07 50 * CHIRIKOF Knoll 55 36'N - 154 27W 5.03 GEBCO-SCGN/7 CHIRIKOF Seamount 54 50'N - 152 50'W 50-810 * CHOPIN Seamount 26 08'N -162 03'W 50-51 * CHUKCHI Abyssal Plain 76 45'N -172 00'W 5.17 * = Plain CHUROV Seamount 17 29'S - 9 53'W 5.12 GEBCO-SCGN/7 = Subject to confirmation CHUKCHI Plateau 77 50'N - 164 00'W 5.17 * (June 1987)= Borderland CIPANGU Basin 34 00'N - 149 00'E 5.06 * (Septembre 1984) GEBCO-SCGN/6 CLAIRAUT Seamount 17 59'N - 110 29'W 802 * CLARION Bank 20 50'N - 74 00'W 400-402 * (November 1986) CLARION Fracture Zone 14 00'N - 149 00'W to 18 30'N - 120 00'W 5.07 50-51-802 * CLARK Bank 8 05'S - 139 40'W 607 * = Reef CLARK Basin 10 50'N - 80 40'W 400-402-811 * CLARK Seamount 20 00'N - 157 38'W 809 * CLERKE Reef 17 10'S - 119 20'E 71 CLIPPERTON Fracture Zone 3 00'N - 150 00' to 10 00'N - 114 00'W 5.07 51-802-811 * CLIPPERTON Ridge 10 30'N - 110 00'W 51-802-811 * CLIPPERTON Seamounts 9 30'N - 111 00'W 5.07 802 * COBB Seamount 46 46'N - 130 49'W 50-801 * COCO-DE-MER Seamounts 0 00' - 55 40'E 5.09 71-72-703 * GEBCO = Seamount COCOS Basin 1 00'N - 93 00'E 71-73-707 See GEBCO-SCGN/7 * (October 1986) COCOS Ridge 2 30'N - 90 00'W to 7 30'N - 84 00'W 5.07 51 * COCOS KEELING Rise 13 00'S - 96 30'E 70-71-73-708 * COCOS : See WEST COCOS Seamount COIBA Ridge 6 30'N - 81 45'W 811 * COLBECK Basin 77 00'S - 159 30'W 5.18 COLOMBIA Basin 14 00'N - 76 00'W 5.08 12-13-400-402 * = COLOMBIAN COLOMBIAN Trench 3 15'N - 78 45'W 5.07 * COLON Ridge 2 00'N - 96 00'W 5.07 * COLORADO Seamount 33 15'N - 37 20'N 11-12-14 * COLUMBIA Seamount 20 45'S - 32 00'W 5.12 * COLVILLE Ridge 30 00'S - 180 00' 5.10 600-602 * COMORO Basin 14 00'S - 44 00'E 701-702 * COMSTOCK Seamount 48 15'N - 156 50'W 5.03 50 * CONCEPTION Bank 29 55'N - 12 45'W 11-12-14-104 * INT 11-14 = Seamount CONFIANCE Shoal 18 30'S - 152 30'W 606-607 INT 606 = Seamount CONGO Canyon 5 50'S - 9 20'E 5.12 * CONGO Cone 6 00'S - 8 30'E 5.12 * = Fan, GEBCO = should be Fan. CONGRESS Seamount 33 07'N - 54 49'W 11-12-13 * CONRAD Fracture Zone 55 50'S - 6 30'W to 55 30'S - 1 30'W 5.16 * (June 1987) CONRAD Rise 53 00'S - 41 00'E 5.13 (CONSTANTINE Bank) 20 25'S - 171 15'E 5.10 This feature has been canceled by AUS Notice to Mariners 793/1984 COOK Canyon 51 20'N - 128 40'W 5.03 * (June 1984) GEBCO-SCGN/6 (Replaces COOK Trough) COOK Fracture Zone 26 30'S - 169 00'E to 28 30'S - 179 00'E 5.10 GEBCO-SCGN/7 COOPER Ridge 7 00'N - 149 00'W 5.07 * CORA DIVH 13 45'N - 72 10'E 71-72-73-705 Bank. CORAL Basin 13 40'S - 151 20'E 5.10 604 * and INT 604 + CORAL SEA Basin CORAL PATCH Bank 34 56'N - 11 57'W 103-104 * = Seamount CORNER Seamounts 35 30'N - 51 30'W 5.08 11-12-13 * CORREIRA Bank 6 30'S -57 10'E 702-703 * = Guyot CORSO-LIGURIAN Basin 42 55'N -8 00'E 5.05 301 GEBCO-SCGN/7 CORTES Bank 32 28'N - 119 10'W 801-802 * COWIE Seamount 54 10'N - 149 20'W 5.03 50-810 * CRARY Bank 74 55'S -170 00'E 5.18 * CRAWFORD Seamount 38 40'S - 11 10'W 5.12 21-22 * CREST Seamount 24 35'N - 117 05'W 50-51-802 * CRETAN Trough 35 45'N - 25 55'E 302 * CROSLEY Seamount 16 55'N - 152 26'W 50-51-809 * CROSS Seamount 18 45'N -158 15'W 50-51-809 * CROUGH Seamount 24 45'S - 121 45'W 5.11 * (June 1984) GEBCO-SCGN/6 CROZET Basin 39 00'S - 60 00'E 70-72-73-700 * CRUISER Seamount 32 23'N - 27 37'W 5.08 11-12-14 * = Tablemount, INT 12 = Tablemount CUVIER Basin 22 00'S - 111 00'E 5.09, 5.10 60-708 * CUVIER Canyon 64 40'S - 140 00'E 5.18 CUVIER Plateau 24 10'S - 108 20'E 5.09 60-708 * DACIA Seamount 31 10'N - 13 35'W 5.08 11-12-14-104 * DAIGO-KASIMA Seamount 35 46'N - 144 19'E 510 DAIITI-KASIMA Seamount 35 49'N -142 40'E 510 * = KASHIMA Tablemount DAIITI-KINAN Seamount 30 28'N - 136 18'E 510 DAINI-KASIMA Seamount 36 05'N - 143 28'E 510 DAINI-KINAN Seamount 30 10'N - 136 43'E 510 * DAITO Ridge 25 35'N - 132 10'E 5.06 509 * DAIYON-KASIMA Seamount 34 16'N - 144 00'E 510 DAKAR Canyon 14 10'N - 18 15'W 5.08 * DALL Seamount 58 10'N - 145 35'W 50-810 * DALY Canyon 65 30'S - 62 30'E 5.18 DALY Seamount 18 08'N - 157 40'W 104 * DAMPIER Ridge 24 00'S - 157 00'E to 34 00'S - 158 30'E 5.10 60-602 * GEBCO-SCGN/7 DAMPIER Seamount 11 09'S - 0 27'W 21-22-203 * (April 1984) DANA Fracture Zone 12 00'S - 97 45'W to 13 30'S - 93 30'W 5.11 * DANA Seamount 18 38'N - 155 57'W 809 * DANUBE Fan 44 00'N - 31 00'E 5.05 GEBCO-SCGN/7 DAVID Seaknoll 6 24'N - 50 15'E 703 * = Knoll DAVIDSON Bank 54 00'N - 163 45'W 810 * DAVIDSON Seamount 35 43'N - 122 43'W 50-51-801-802 * DAVIE Ridge 18 00'S - 41 45'E 5.09 * DAVIE Seamount 36 30'S - 24 17'E 21-22-72-204 * DAVIS Bank 20 35'S - 34 45'W 201-202 DAVIS Seamounts 51 40'S - 4 12'E 5.16 21 * (June 1987) DAVIS Sill 65 30'N - 57 00'W 5.04, 5.17 * (January 1985) GEBCO-SCGN/6 DAY Seamount 18 40'N - 156 20'W 809 * DEACON Seamount 47 39'S - 43 48'E 5.13 GEBCO-SCGN/1988 DEBUSSY Seamount 30 18'N - 162 05'W 50-51 * DE GERLACHE Seamounts 65 00'S - 90 30'W 5.15, 5.18 DEHLINGER Seamount 42 00'N - 137 19'W 50-801 * DE KRAFFT Seamount 13 53'N - 156 17'W 51-809 * DELAN Basin 30 45'N -114 00'W 5.07 DEL CANO Rise 45 15'S - 39 30'E to 45 30'S - 47 00'E 5.09 70-72 GEBCO-SCGN/6 DELFIN Basin 29 40'N - 113 50'W 802 * DELGADA Canyon 40 02'N - 124 10'W 801 * DELGADA Fan 39 15'N - 125 00'W 5.07 * DELLWOOD Knolls 50 42'N - 130 15'W 50-801 * (June 1984) = SOUTHEAST DELLWOOD Knoll DELLWOOD Seamounts 50 37'N - 130 42'W 50-801 * DEMERARA Abyssal Plain 10 00'N - 51 00'W 5.08 216 * = Plain DEMERARA Plateau 8 10'N - 53 30'W 216 * DENSON Seamount 54 00'N - 137 15'W 50-801-810 * DERICKSON Seamount 52 50'N - 161 15'W 50-810 * DERWENT HUNTER Guyot 30 50'S - 156 10'E 5.10 60-602 * = Tablemount, INT Charts = Seamount DERYUGINA Basin 53 30'N - 145 45'E 5.02 512 * = DERYUGIN DESBARRES Canyon 44 00'N - 53 27'W 5.08 * (January 1985) GEBCO-SCGN/6 DESCARTES Seamount 14 06'N - 108 45'W 802-811 * D'ESTAING Bank 18 10'S - 43 17'E 701 DETROIT Trough 51 15'N - 167 45'E 813 * = Tablemount DEUTSCHLAND Canyon 73 30'S - 29 50'W 5.18 DE VEUSTER Seamount 30 15'N - 177 30'E 5.06 GEBCO-SCGN/6 * (September 1984) DEVILS Hole 56 38'N - 0 40'E 5.01 * DEVONPORT Seamount Chain 31 30'S - 175 23'E 60-600-602-605 * = Seamount, INT 600-605 = Seamount DIAMANTINA Fracture Zone 34 00'S - 101 00'E to 37 00'S - 115 00'E 5.09, 5.10 60-70-73-708 * DIANA Bank 22 31'N - 74 47'W 400-401-402-403 * = Reef DIANE Bank 16 00'S - 149 40'E 5.10 604 * DICKINS Seamount 54 30'N - 137 00'W 5.03 50-801-810 * DINGAAN Fracture Zone 53 30'S - 11 30'E to 50 45'S - 15 15'E 5.16 DIRCK HARTOG Ridge 30 30'S - 105 10'E 5.09 60-708 * = HARTOG Ridge DISCOVERY Seamounts 42 00'S - 0 10'E 5.12, 5.16 21-22 * = Tablemount DISCOVERY II Fracture Zone 44 30'S - 41 20'E to 39 00'S - 43 30'E 5.09 70-72 * DISPATCH Seamount 27 42'N - 119 20'W 50-51-802 * DMITRI MENDELEEV Seamount 4 52'N - 154 58'E 5.06 GEBCO-SCGN/7 * (October 1985) DOGARESSA Bank 21 00'S - 33 45'W 201-202 DOGGER Bank 54 50'N - 2 20'E 5.01 * DOHRN Bank 65 55'N - 29 42'W 112 DOHRN : See ANTON DOHRN Seamount DOLDRUMS Fracture Zone 8 30'N - 43 30'W to 8 00'N - 34 30'W 5.08 * (December 1983) Dom JOAO DE CASTRO Bank 38 13'N - 26 38'W 11-14-103-104 * = Reef DONIZETTI Seamount 32 20'N - 160 00'W 50-51 * DONNA Ridge 16 30'S - 177 25'W 5.10 DORDRECHT Deep 33 30'S - 101 15'E 5.09 * = Basin DORSEY Seamount 48 48'N - 156 45'W 50 * DOWNWIND Seamount 16 37'N - 114 47'W 51-802 * DRAAK : See GULDEN DRAAK Knoll DRAGON Bank 34 55'N - 16 30'W 103-104 * = Seamount UK 4103-4104 = Seamount DREANOUGHT Bank 6 40'N - 95 50'E 706 DRYGALSKI Basin 74 50'S - 166 30'E 5.18 GEBCO-SCGN/7 * DUBININ Trough 67 45'S - 78 00'E to 66 40'S - 82 00'E 5.13, 5.18 GEBCO-SCGN/7 * (August 1985) DUFRESNE : See MARION DUFRESNE Seamount DUMSHAF Abyssal Plain 70 00'N - 4 00'E 5.17 * = Plain DUPONT Shoal 4 15'S - 54 25'E 702-703 DURGIN Guyot 55 50'N - 141 50'W 5.03 50-810 * = Seamount, INT Charts = Seamount DUTCHMEN : See LOST DUTCHMEN Ridge DUTOIT Fracture Zone 53 00'S - 25 30'E to 46 00'S - 30 10'E 5.09, 5.13 GEBCO-SCGN/6 * (October 1985) DUTTON Seamount 20 03'N - 158 02'W 50-51-809 * DVORAK Seamount 30 31'N - 161 20'W 50-51 * EAST AZORES Fracture Zone 36 45'N - 28 30'W to 37 20'N - 20 00'W 5.08 103-104 * (December 1983) EAST CAROLINE Basin 3 00'N - 146 00'E 5.06 506 * EAST CORTES Basin 32 15'N - 118 30'W 801-802 * EASTER Fracture Zone 26 15'S - 96 30'W to 25 30'S - 88 00'W 5.11 * EAST INDIAMAN Ridge 22 50'S - 101 15'E to 30 00'S - 98 30'E 5.09 708 * EAST MARIANA Basin 14 30'N - 155 00'E 5.06 510 * EAST MARIANA Ridge 14 30'N - 145 30'E 5.06 EAST O'GORMAN Fracture Zone 12 45'N - 103 00'W to 15 30'N - 98 30'W 5.07 * GEBCO-SCGN/6: see O'GORMAN Fracture Zone EAST PACIFIC Rise 17 00'N - 105 20'W to 55 00'S - 121 00'W 5.07, 5.11, 5.15 61-802-811 * EAST SHEBA Ridge 14 30'N - 56 00'E 5.10 705 * EAST TASMAN Plateau 44 00'S - 150 30'E 5.10 * EAST THULEAN Rise 51 40'N - 22 00'W 5.04 102 * (December 1983) EAURIPIK Rise 3 00'N - 142 00'E 5.06 507 * ECLIPSE Seamount 19 08'S - 159 20'W 606 * EDORAS Bank 56 00'N - 22 10'W 5.04 102 * (September 1983) EEL Canyon 40 39'N - 124 35'W 801 * EENDRACHT Seamounts 28 35'S - 102 45'E 5.09 708 * EGERIA Fracture Zone 21 00'S - 65 00'E to 19 00'S - 68 00'E 5.09 * EGGVIN Shoal 70 54'N - 12 52'W 10-113 EICKELBERG Ridge 48 45'N - 133 30'W 50-801 * EICKELBERG Seamount 48 30'N - 133 10'W 50-801 * EIHUKU Seamount 21 25'N - 144 09'E 510 EIRIK Ridge 58 30'N - 44 30'W 5.04 * ELAN Bank 56 45'S - 67 50'E 5.13 ELIKALPENI Bank 11 15'N - 74 05'E 703-705 ELIZABETH Reef 29 58'S - 159 05'E 5.10 ELLET Bank 22 55'S - 169 25'E 602 ELLIS Seamount 19 10'N - 157 42'W 809 * ELTANIN Fracture Zone System 50 00'S - 146 00'W to 58 00'S - 110 00'W 5.15 * = Fracture zone ELY Seamount 56 15'N - 145 40'W 50-810 * EMBATTLE Seamount 10 45'N - 164 10'W 617-809 * EMDEN Deep 10 39'N - 126 36'E 5.06 * (November 1982) GEBCO-SCGN/6 EMERALD Basin 54 00'S - 162 30'E 5.14 * EMERY Basin 31 50'N - 118 08'W 802 * EMILE BAUDOT Bank 38 42'N - 2 30'E 301 EMILIA Seamount 43 50'N - 131 54'W 50-801 * EMMONS Seamount 15 56'N - 166 50'W 50-809 * EMPEROR Seamount Chain 51 30'N - 167 30'E to 32 00'N - 173 00'E 5.02, 5.06 53 * = Seamounts EMPEROR Trough 46 00'N - 173 00'E to 38 00'N - 176 30'W 5.06, 5.07 53 * ENDEAROR Seamount 48 15'N - 128 15'W 5.03 * (December 1983) = ENDEAVOUR ENDEAVOUR Bank 25 20'N - 19 20'W 12-14-104 * ENDERBY Abyssal Plain 60 00'S - 40 00'E 5.13, 5.18 ENDRACHT Seamount 28 30'S - 102 57'E 70-73 ENDURANCE Canyon 69 30'S - 48 00'W 5.18 ENDURANCE Fracture Zone 56 20'S - 52 45'W to 56 45'S - 48 30'W 5.16 ENDURANCE Ridge 63 15'S - 41 40'W 5.16 * (June 1987) ENGELBRECHT Seamount 36 10'S - 14 10'E 5.12 21-204 * ENGGANO Basin 6 00'S - 103 40'E 5.09 GEBCO-SCGN/7 * (October 1986) = ENGANNO EQUATORIAL MID-OCEAN Canyon 3 30'S - 32 00'W 5.12 * EQUATORIAL Seachannel ERATOSTHENES Seamount 33 45'N - 32 45'E 302 * = Tablemount ERBEN Seamount 32 52'N - 132 32'W 50-51-801 * = Tablemount ERIADOR Seamount 54 50'N - 25 20'W 5.04 11-14-102 * (September 1983) ERICA Seamount 38 15'S - 14 45'E 5.12 21-22-204 * ERIC SIMPSON Fracture Zone 42 00'S - 39 50'E to 45 00'S - 38 45'E 5.09 GEBCO-SCGN/6 ERIMO Seamount 40 54'N - 144 57'E 511 * (SISOEV Seamount) ERROR Seamount : See MOUNT ERROR GUYOT ESPINOSA Seamount 9 38'N - 114 10'W 51-802 * ESTAFETTE Bank 37 37'N - 9 40'E 301 ETIENNE Canyon 52 40'N - 171 20'E 813 * EUCLID Seamount 12 45'N - 110 30'W 51 * EULER Seamount 16 03'N - 112 00'W 802 * EUXINE Abyssal Plain 42 20'N - 33 00'E 302 EVA Seamount 22 00'S - 170 45'E 5.10 GEBCO-SCGN - Oct. 1987 EWING Seamount 23 16'S - 8 17'E 5.12 22-203-204 * EWING Seamount 20 20'N - 174 10'E 5.06 * (January 1985) GEBCO-SCGN/6 EWING : See MAURICE EWING Bank EXMOUTH Plateau 20 00'S - 113 00'E 5.09, 5.10 60-70-71-73-708 * EXPLORER Seamount 49 05'N - 130 48'W 50-801 * EXPLORER Tablemount 16 55'N - 83 15'W 400-402-811 * INT 400-402 = Seamount FAEROE Bank 60 55'N - 8 30'W 5.04 11-14-102 * FAEROE BANK Channel 61 10'N - 7 45'W 5.04 * = FAEROE Gap FAEROE Shelf 62 00'N - 6 00'W 5.04 FAEROE-SHETLAND Channel 62 00'N - 3 00'W 5.04 FAEROE : See ICELAND-FAEROE Rise FAIRWAY Reef 21 00'S - 161 45'E 5.10 * FAIRWEATHER Ground 58 22'N - 138 50'W 810 * FAIRWEATHER Seamount 19 51'N - 113 01'W 51-802 * FALEEV Seamount 8 26'S - 1 33'E 5.12 GEBCO-SCGN/7 = subject to confirmation FALKLAND Escarpment 48 35'S - 55 00'W to 49 30'S - 46 00'W 5.12, 5.16 * (MALVINAS Escarpment) FALKLAND Fracture Zone 49 20'S - 40 00'W to 49 00'S - 35 45'W 5.16 20 * (MALVINAS Fracture Zone) GEBCO-SCGN/7, INT 20 = 48 S - 26 W FALKLAND Plateau 51 00'S - 50 00'W 5.16 20 * (MALVINAS Plateau) GEBCO-SCGN/7 FALKLAND Ridge 49 00'S - 35 30'W to 48 40'S - 30 30'W 5.16 (MALVINAS Ridge) GEBCO-SCGN/7 FALKLAND Trough 53 00'S - 53 30'W to 52 30'S - 46 00'W 5.16 * (MALVINAS Trough) GEBCO-SCGN/7 (Not Chasm) FANGORN Bank 55 30'N - 20 10'W 11-14-102 FARADAY Fracture Zone 49 30'N - 31 00'W to 49 30'N - 24 00'W 5.04 11-14-102 FARADAY Seamount 49 40'N - 29 05'W 11-14-102-103 * = Seamounts FARALLON Basin 24 45'N - 109 30'W 5.07 802 * FARIS Seamount 54 30'N - 147 15'W 50-810 * FARQUHAR Ridge 11 10'S - 50 00'E to 8 45'S - 51 45'E 701-702 * FAWN Trough 57 45'S - 75 30'E 5.13 FENI Ridge 54 00'N - 17 30'W 5.04 102 * (September 1983) INT 102 = SOUTH FENI Ridge FERNANDO DE NORONHA Abyssal Plain 2 30'S - 30 00'W 12-20-215-216 FERNANDO DE NORONHA Ridge 3 45'S - 33 10'W 20-202-215-216 FERREL Seamount 29 30'N - 117 18'W 50-802 * FIEBERLING Tablemount 32 22'N - 127 50'W 50-51-801 * FIFTEEN TWENTY Fracture Zone 15 30'N - 47 30'W to 14 00'N - 36 30'W 5.08 FIJI Plateau 14 20'S - 171 00'E 60-604 * FIJI : See NORTH FIJI Plateau and SOUTH FIJI Plateau FILIPPO Reef 5 30'S - 151 50'W 51 FILLEBROWN Seamount 15 05'N - 162 55'W 809 * FINCH Seamount 17 32'N - 157 35'W 50-51-809 * FLEMISH Cap 47 00'N - 45 00'W 5.04 11-13-404 * FLEMISH Pass 47 00'N - 46 45'W 13-404 * (June 1984) FLINDERS Reef 17 40'S - 148 20'E 5.10 * = reefs FLINDERS Seamount 34 40'S - 159 44'E 60-601-602 * FLORA Reef 16 50'S - 147 45'E 5.10 * FLORES Basin 7 45'S - 120 00'E 5.10 * FORMIGAS Bank 18 30'N - 75 45'W 400-401-402-403 * = Reef FORTUNE Bank 7 15'S - 57 00'E 5.09 70-71-72-702-703 * FOSTER Seamount 48 57'N - 133 50'W 50-801 FOURIER Seamount 14 05'N - 111 00'W 802 * FOUR LADIES Bank 67 05'S - 78 00'E 5.13 * FOUR NORTH Fracture Zone 4 00'N - 36 00'W to 4 00'N - 27 00'W 5.08, 5.12 * (December 1983) FOXE Basin 67 00'N - 78 00'W 5.04, 5.17 FRAM Bank 67 20'S - 69 30'E 5.13, 5.18 * FRANKLIN Seamount 57 54'N - 26 30'W 11-14-102 FRANKLIN Shoal 75 50'S - 169 00'E 5.18 FRASER Seamount 24 25'S - 155 15'E 60-602 FREDERICK Reefs 20 57'S - 154 23'E 5.10 FRED Seamount 6 15'S - 54 25'E 5.09 702-703 * FRENCH FRIGATE Shoals 23 45'N - 166 10'W 5.07 50-809 * GEBCO = Shoal FROYA Bank 63 45'N - 7 30'E 5.01 10-11-101 * (December 1985) FRYER Guyot 20 30'N - 148 00'E 5.06 * (December 1983) GEBCO-SCGN/6 FUGLOY Bank 71 00'N - 20 00'E 5.01, 5.17 * (OCT.1986) = FUGLOYA FUNDIAN Valley 42 20'N - 66 30'W 13-403 * FUNK Seamount 46 15'S - 37 30'E 5.09 70-72 * HALL Bank 21 52'S - 39 00'E 701 * = Tablemount HALMAHERA Basin 0 30'S - 129 00'E 5.10 * HALTEN Bank 64 45'N -8 45'E 5.01, 5.17 10-11-101 * HAMILTON Bank 54 00'N - 54 30'W 5.04 * (Sept. 1983) HAMMERSTEIN Seamount 32 28'N - 165 46'W 50 * HANCOCK Bank 1 04'S -90 13'W 503 * HANDEL Seamount 27 26'N - 159 53'W 50-51 * HARRISON Seamount 12 40'N - 167 55'W 504 * HARRIS Seamount 46 10'N - 161 25'W 50 * HARTOG : See DIRCK HARTOG Ridge HASSAYAMPA Seamount 15 18'N - 163 29'W 50-51-504 * HATTERAS Abyssal Plain 29 00'N - 70 30'W 5.08 11 * = Plain HATTERAS Canyon 35 00'N - 75 00'W 5.08 * HATTON Bank 58 35'N - 18 00'W 5.04 11-14-102 * = Ridge HATTON-ROCKALL Basin 57 30'N - 17 00'W 5.04 102 * HAVRE Trough 28 00'S - 178 40'W 5.10 600 * HAWAIIAN Ridge 31 00'N - 176 00'E to 22 00'N - 160 00'W 5.06, 5.07 50-504 * HAWAIIAN Trough 21 00'N - 155 00'W 5.07 50-51-504 * HAWAIIAN : See NORTH HAWAIIAN Ridge HAWLEY Ridge 51 00'N - 176 15'W 50-513 * HAYDN Seamount 26 40'N - 161 12'W 50-51 * HAYES Fracture Zone 34 30'N - 41 30'W to 33 00'N - 35 00'W 5.08 * HAZEL HOLME Bank 12 45'S - 174 00'E 5.10 604 * HEBRIDEAN Shelf 59 15'N - 5 30'W 5.04 HEBRIDES TERRACE Seamount 56 25'N - 10 25'W 5.04 * = HEBRIDES Seamount HECATE Seamount 52 17'N - 31 00'W 5.04 11-13-14-102 * HECETA Bank 44 10'N - 124 45'W 501 * HECHT Seamount 53 45'N - 151 20'W 50-500 * HECK Canyon 52 15'N - 175 00'E 513 * HECK Seamount 48 30'N - 130 00'W 50-501 * HEEZEN Fracture Zone 51 25'S - 140 00'W to 57 45'S - 110 00'W 5.15 * HELLENIC Trench 37 15'N - 20 15'E to 34 50'N - 28 00'E 5.05 302 GEBCO-SCGN/7 HEMLER Guyot 19 40'N - 151 40'E 5.06 * (December 1983) GEBCO-SCGN/6 HENDERSON Seamount 25 34'N - 119 33'W 50-51-502 * HERALD Valley 71 15'N - 174 20'E 5.03, 5.17 * (January 1985) GEBCO-SCGN/6 HERDMAN Seamount 45 20'S - 0 30'E 5.12, 5.16 21 * HERODOTUS Basin 33 00'N - 28 00'W 5.05 302 * GEBCO-SCGN/7, INT Chart = Abyssal Plain HERODOTUS Rise 33 40'N - 23 30'E 302 HERODOTUS Seamount 33 36'N - 19 55'E 302 * HERO Fracture Zone 61 30'S - 66 00'W 5.15 * (June 1987) HERMES : See PEARL AND HERMES Reef HESS Rise 36 30'N - 177 00'E 5.06 53 * HESS Tablemount 17 50'N - 174 15'W 504 * HIKURANGI Trench 41 30'S - 177 00'E 5.10 * HILLARY Canyon 72 25'S - 173 00'W 5.18 HILL : See M.N. HILL Ridge HINDS Seamount 18 26'N - 153 10'W 504 * HISPANIOLA Trough 20 18'N - 71 00'W 5.08 * HJORT Trench 58 30'S - 157 45'E 5.14 * HOBBS Bank 74 20'S - 137 30'W 5.18 HODGES Knoll 12 25'N - 155 37'W 51-504 * HODGES Seamount 31 54'N - 58 44'W 11-12-400 * HODGKINS Seamount 53 30'N - 136 05'W 50-500-501 * HODGKINS Seamounts 53 40'N - 136 30'W 50-500-501 * HOGSTY Reef 21 41'N - 73 49'W 108-400-401-402 HOKE Seamount 32 06'N - 126 56'W 50-51-501 * HOKKAIDO Rise 42 30'N - 150 00'E to 46 30'N - 157 00'E 5.06 53-511 * (see also ZENKEVICH Rise) GEBCO = ZENKEVICH Rise, INT Charts =HOKKAIDO Rise HOLMES Reef 16 30'S - 147 50'E 5.10 * = Reefs HOLME : See HAZEL HOLME Bank HOOKER Basin 70 10'S - 166 20'E 5.14, 5.18 HOOK Ridge 51 30'N - 143 40'W 50-810 * HORIZON Bank 13 10'S - 173 35'E 5.10 HORIZON Channel 47 10'N - 145 00'W 5.03 HORIZON Deep 23 20'S - 174 47'W 5.10 * (November 1982) HORIZON Ridge 14 30'S - 106 15'E 5.09 708 HORIZON Tablemount 19 40'N - 168 30'W 50-60-809 * HORSESHOE Seamounts 36 00'N - 13 00'W 5.08 * HOTSPUR Fracture Zone 19 00'S - 18 30'W to 17 00'S - 5 00'W 5.12 HOTSPUR Seamount 18 00'S - 36 00'W 5.12 202 * INT Charts = Bank HOWE : See LORD HOWE Rise and LORD HOWE Seamount Chain HUDDELL Seamount 28 20'N -146 13'W 50-51 * HUDSON Canyon 39 30'N - 72 15'W 5.08 * HUKUTOKU Seamount 24 03'N - 141 37'E 510 HUKUZIN Seamount 21 56'N - 143 28'E 510 HUNTER Channel 34 00'S - 28 00'W 22-201 * = Gap HUNTER : See DERWENT HUNTER Guyot HYDRA Seamount 11 00'S - 50 35'E 5.09 70-71-72-702 * HYERES Seamount 31 30'N - 29 00'W 11-12-14 * IBERIAN Abyssal Plain 41 30'N - 14 00'W 5.08 11-14-103 * = Plain ICELAND Basin 58 00'N - 28 00'W to 61 30'N - 16 30'W 5.04 11-14 * (September 1983) ICELAND-FAEROE Rise 64 15'N - 12 15'W to 62 30'N - 8 00'W 5.04 11 * = FAROE-ICELAND Ridge ICELANDIC Plateau 68 00'N - 12 30'W to 69 30'N - 12 15'W 5.04, 5.17 * = ICELAND Plateau ICELAND : See GREENLAND-ICELAND Rise IGNACIO Canyon 25 30'N - 109 30'W 802 * IIZUKA Seamount 42 21'N - 131 56'W 50-801 * IMARSSUAK Channel 57 00'N - 43 00'W to 60 00'N - 37 00'W 5.04 * = Seachannel IMPERIEUSE Reef 17 37'S - 118 58'E 71 INDIAMAN : See EAST INDIAMAN Ridge INDIANAPOLIS Seamount 19 38'N - 156 42'W 809 * INDIAN : See CENTRAL INDIAN Ridge, MID-INDIAN OCEAN Basin, SOUTHEAST INDIAN Ridge, SOUTHWEST Ridge, SOUTHWEST INDIAN Ridge, and SOUTH INDIAN Abyssal Plain. INDISPENSABLE Reefs 12 45'S - 160 25'E 5.10 INDOMED Fracture Zone 42 30'S - 45 30'E to 35 00'S - 48 00'E 5.09 70-72 * INDUS Canyon : See THE SWATCH INDUS Fan 23 00'N - 66 00'E to 16 00'N - 64 00'E 5.05 705 * GEBCO-SCGN/7 INGOYDJUPET 71 25'N - 22 35'E 100 Hole INSTITUTA OKEANOLOGII Rise 52 00'N - 149 30'E 5.02 512 * = I.O. Rise INVESTIGATOR Bank 8 30'N - 73 17'E 703-706-707 * INVESTIGATOR Ridge 4 30'S - 98 15'E to 17 15'S - 99 10'E 5.09 708 * INVISIBLE Bank 11 10'N - 93 28'E 706 * IONIAN Basin 35 45'N - 18 00'E 5.05 301-302 * GEBCO-SCGN/7 IRMINGER Basin 61 00'N - 36 00'W 5.04 11-14 IRONWOOD Seamount 10 40'N - 159 57'W 51-617-809 * IRVING Seamount 32 00'N - 28 00'W 11-14 * ISAKOV Seamount 31 40'N - 151 05'E 5.06 * ISELIN Bank 72 45'S - 177 30'W 5.14, 5.18 * ISENGARD Ridge 52 25'N - 21 00'W 102 ISLAS ORCADAS Fracture Zone 55 00'S - 5 00'E to 53 30'S - 3 00'E 5.16 ISLAS ORCADAS Rise 51 00'S - 26 20'W 5.16 21 IVERSEN : See THOR IVERSEN Bank IWABUCHI Seamount 42 04'N - 132 44'W 50-501 * IWAKI Seamount 36 55'N - 144 55'E 511 IZU-OGASAWARA Rise 32 00'N - 143 30'E 5.06 IZU-OGASAWARA Trench 32 00'N - 142 10'E 5.06 510 * = IZU Trench JABARU Fracture Zone 52 15'S - 15 05'E 5.16 GEBCO-SCGN/6 (formerly MANDELA) - To be cleared. JACQUELINE Guyot 19 20'N - 176 40'E 5.06 * (January 1985) GEBCO-SCGN/6 JAGGAR Seamount 19 23'N - 157 00'W 809 * JAGUA Bank 21 35'N - 80 40'W 400-401-402-403 * INT 400-402 = XAGUA JAGUAR Seamount 21 55'S - 39 27'E 70-71-72-701 * JAMES Knoll 51 00'N - 177 12'E 813 * JAN MAYEN Bank 70 00'N - 9 00'W 10-100 JAN MAYEN Fracture Zone 71 40'N - 11 30'W to 69 30'N - 0 30'W 5.04, 5.17 113 * JAN MAYEN Ridge 67 50'N - 9 20'W to 70 30'N - 8 30'W 5.04, 5.17 * JAPAN Basin 41 00'N - 132 30'E to 43 00'N - 138 00'E 5.06 511 * JAPAN Rise 38 30'N - 146 00'E 5.06 JAPAN Trench 36 00'N - 142 50'E to 40 30'N - 144 30'E 5.06 510-511 * JASEUR Seamount 20 30'S - 36 05'W 5.12 201-202 * INT Charts = Bank JASPER Seamount 30 32'N - 122 42'W 50-51-802 * JAVA Ridge 8 30'S - 107 00'E to 10 45'S - 118 00'E 5.09, 5.10 708 * JAVA Trench : See SUNDA Trench JENLUISE Bank 64 00'S - 106 30'E 5.13 JIMMU Guyot 46 00'N - 169 25'E 5.06 * = Seamount GEBCO-SCGN/6 JINGU Guyot 38 50'N - 171 15'E 5.06 * = Seamount GEBCO-SCGN/6 JINGU Basin 39 30'N - 171 00'E 5.06 * (January 1985) GEBCO-SCGN/6 JOAO PESSOA Plateau 6 50'S - 33 30'W 12-13-202-215-216 INT 12-13 = Terrace JOIDES Basin 74 30'S - 174 00'E 5.18 JONES Seamount 43 33'N - 132 55'W 50-801 * JONES Seamount 52 25'N - 148 55'W 50-810 * JORDAN Knoll 23 32'N - 83 48'W 400-401-402 * JOSEPHINE Bank 36 35'N - 14 15'W 11-12-14-103-104 * = Seamount, INT Charts 11-12-14 = Seamount JUAN DE FUCA Canyon 47 50'N - 125 30'W 801 * JUAN DE FUCA Ridge 46 00'N - 130 00'W 5.07 * JUSSIEU Canyon 65 15'S - 143 00'E 5.18 JUTLAND Bank 56 50'N - 7 20'E 5.01 * KAGAMI Seamount 45 29'N - 140 37'W 50 * KAINAN MARU Seamounts 64 50'S - 34 35'E 5.13, 5.18 KALANIOPUU Basin 25 00'N - 180 00' 5.06 * (Sept.1984) GEBCO-SCGN/6 KAMCHATKA Basin : See KOMANDORSKAYA Basin KAMCHATKA : See KURIL KAMCHATKA Trench KAMEHAMEHA Basin 15 00'N - 160 00'W 5.07 * (Sept.1984) GEBCO-SCGN/6 KAMMU Guyot 32 10'N - 173 00'E 5.06 * = Seamount GEBCO-SCGN/6 KANAEV Seamount 33 07'S - 84 50'E 5.09 GEBCO-SCGN/7 KANAGA Basin 50 48'N - 178 25'W 813 * KANE Basin 79 30'N - 68 00'W 5.17 KANE Fracture Zone 24 30'N - 50 00'W to 22 40'N - 40 00'W 5.08 * KANE Gap 9 15'N - 19 30'W 5.08 * (September 1983) GEBCO-SCGN/6 KANE Seamount 21 05'N - 28 05'W 5.08 * KANIN Bank 69 35'N - 42 00'E 5.01 KANIN : See NORTH KANIN Bank KANMU Seamount 32 00'N - 173 10'E 53 * = KAMMU KARA : See CENTRAL KARA Rise KARASEV : See BORIS KARASEV Bank KARIN Seamount 17 55'N - 168 58'W 50-809 * KASHEVAROV Bank 55 40'N - 145 30'E 512 KAYAR Canyon 15 25'N - 18 00'W 5.08 KAYAR Seamounts 15 40'N - 17 45'W 14 KELSO Bank 24 10'S - 159 30'E 5.10 602 * = Reef KELVIN Seamount 38 50'N - 64 00'W 403 * KENN Reefs 21 10'S - 155 45'E 5.10 KEPLER Seamount 18 30'N - 109 35'W 802 * KERGUELEN Plateau 51 00'S - 72 00'E to 60 00'S - 83 00'E 5.13 * KERMADEC Ridge 35 00'S - 179 15'E to 27 45'S - 177 40'W 5.10 60-600-605 * KERMADEC Trench 35 30'S - 178 45'W to 26 30'S - 175 30'W 5.10 60-600-605 * KERMIT ROOSEVELT Seamount 39 10'N - 146 20'W 50-51 * KERN Seamount 32 33'N - 166 00'W 50 KHACHATURIAN Seamount 28 09'N - 162 00'W 50-51 * KHAYYAM Seamount 14 17'N - 107 02'W 51-802-811 * KINGMAN Basin 8 30'N - 167 30'W 5.07 * (October 1985) GEBCO-SCGN/6 KINGMAN Reef 6 20'N - 162 25'W 5.07 KINGSTON Bank 17 37'N - 77 55'W 400-402 KINGS Trough 43 45'N - 22 00'W 5.08 11-14 * KINMEI Seamount 35 00'N - 171 40'E 53 * = KIMMEI (33 43'N) KISKA Knoll 51 07'N - 176 24'E 813 * KITA-HIYOSI Seamount 23 45'N - 141 43'E 510 KITA-KOHO Seamount 26 46'N - 135 23'E 510 KITAMI-YAMATO Bank 44 29'N - 144 11'E 511 KITA-YAMATO Bank 39 50'N - 134 00'E 511 * = NORTH YAMATO Ridge KIWI Seamount 30 43'S - 173 54'E 60-600-602-605 * KIWI Seamount 39 19'N - 64 36'W 403 * KNIPOVICH Ridge 74 20'N - 8 00'E to 79 00'N - 0 00' 5.17 * GEBCO-SCGN/7 KNIPOVICH Seamount 5 34'N - 26 55'W 5.12 GEBCO-SCGN/7 KODIAK Seamount 56 50'N - 149 15'W 5.03 50-810 * KODIAK Seamounts 55 00'N - 140 00'W 50-810 * KOHLER Seamount 52 50'S - 65 00'E 5.13 KOKO Guyot 35 15'N - 171 35'E 5.06 * =Seamount GEBCO-SCGN/6 KOLBEINSEY Ridge 67 20'N - 18 30'W to 70 20'N - 15 20'W 5.04, 5.17 * KOMAHASI-DAINI Seamount 29 54'N - 133 19'E 509 * KOMAHASI-DAISAN Seamount 31 37'N - 137 16'E 510 KOMAHASI Seamount 28 05'N - 134 40'E 509 KOMANDORSKAYA Basin 57 00'N - 168 00'E 5.02 512-813 * = KOMANDORSKIYE, INT Charts = KAMCHATKA KOREAN Plateau 39 00'N - 130 00'E 511 * = KOREA Borderland KOSCIUSKO Bank 10 25'S - 179 30'E 604-617 * = Tablemount, INT 617 = Tablemount KOSYU Seamount 31 25'N - 136 13'E 510 KRUSENSTERN Trough 50 00'N - 165 30'E 5.02 GEBCO-SCGN/6 KRYLOV Seamount 17 37'N - 30 04'W 5.08 14 * KURCHATOV Fracture Zone 40 40'N - 29 30'W 5.08 KURCHATOV Seamount 5 25'S - 68 27'E 70-71-72-702-703 KUTUZOV Seamount 15 12'S - 8 19'W 5.12 203 GEBCO-SCGN - Oct. 1988 KURIL Basin 46 40'N - 147 00'E 5.02, 5.06 511 * KURIL-KAMCHATKA Trench 41 00'N - 145 00'E to 54 00'N - 163 10'E 5.02, 5.06 512 * = KURIL Trench KYUSYU-PALAU Ridge 30 00'N - 133 15'E to 10 00'N - 134 45'E 5.06 510 * LABRADOR Basin 55 00'N - 47 00'W 5.04 11-13-404-405 * LABRADOR Trough 56 45'N - 60 20'W to 54 2O'N - 56 00'W 5.04 * (April 1984) GEBCO-SCGN/6 LA CONFIANCE Seamount 18 30'S - 152 32'W 606-607 LACROIX Guyot 19 10'N - 173 15'E 5.06 GEBCO-SCGN - Aug. 1987 LAGRANGE Seamount 17 18'N - 110 55'W 51-802 * LA JOLLA Canyon 32 53'N - 117 17'W 801 * LA JUNON Bank 5 15'S - 57 00'E 702-703 LAMARCK Canyon 64 45'S - 137 45'E 5.18 LAMONT Guyot 21 32'N - 159 32'E 5.06 * (January 1985) GEBCO-SCGN/6 LANSDOWNE Bank 20 30'S - 161 00'E 5.10 602-604 * LA PERLE Reef 6 00'S - 55 20'E 702-703 LAPEROUSE Bank 48 40'N - 125 50'W 801 The French official spelling of this name is as one word (GEBCO-SCGN-1987) LAPEROUSE Seamount 19 40'S - 54 10'E 5.09 71-72 LAPLACE Seamount 14 40'N - 110 40'W 51-802 * LASKOWSKI Seamount 51 50'N - 144 45'W 50-810 * LASUEN Knoll 33 24'N - 118 00'W 801 * LATAKIA Basin 35 45'N - 35 20'E 302 LAU Basin 20 00'S - 177 30'W 5.10 60-605 * LAU Ridge 21 30'S - 178 45'W 5.10 605 LAURENTIAN Channel 46 30'N - 58 30'W 5.08 13 * = Trough (1/1985) INT Chart = Valley LAWSON Bank 8 40'S - 140 45'W 607 * = Reef LAZAREV Trough 65 10'S - 129 00'E to 66 00'S - 134 00'E 5.14 * (August 1985) GEBCO-SCGN/7 LEARMONTH Bank 54 29'N - 133 03'W 801-810 * LE CONSTANT Bank 6 20'S - 56 20'E 702-703 LEEUWIN Canyon 35 15'S - 115 40'E 5.09, 5.10 * LEFACOR Knoll 45 35'N - 157 23'W 50 * LEIBNITZ Seamount 16 50'N - 110 12'W 811 * LENA Canyon 64 55'S - 90 20'E 5.18 LENA Seamount 53 00'S - 44 15'E 5.13 * = Tablemount L'ESPOIR Ridge 33 00'S - 101 30'E 5.09 LE TROU SANS FOND 5 10'N - 3 58'W 5.08 * Canyon 5.12 LEVEN Bank 12 30'S - 47 45'E 5.09 LIGETI Ridge 61 55'S - 28 15'W 5.16 * (June 1987) LIGHTHOUSE Reef 17 20'N - 87 32'W 400-401 LIHOU Reef 17 25'S - 151 40'E 5.10 604 * = Reefs, INT Charts = Reefs LILIUOKALANI Ridge 34 00'N - 176 15'W to 28 00'N - 171 00'W 5.07 GEBCO-SCGN/6 (Replaces 'NORTHWEST HAWAIIAN Ridge') LION Bank 35 15'N - 15 35'W 11-12-14-103-104 * = Seamount, INT 11-12-14=Seamount LISZT Seamount 28 59'N - 162 05'W 50-51 * LITKE Trough 80 20'N - 8 00'E to 82 10'N - 18 00'E 5.17 * (August 1985) GEBCO-SCGN/7 LITTLE AMERICA Basin 77 35'S - 162 00'W 5.18 LITTLE BAHAMA Bank 26 55'N - 78 40'W 403 * LOBACHEVSKI Seamount 16 29'N - 109 04'W 51-802-811 * and INT charts = LOBACHEVSKIY LOIHI Seamount 18 56'N - 155 16'W 809 * LOMBOK Basin 10 00'S - 116 00'E 5.09, 5.10 60-603-708 * LOMONOSOV Ridge 85 00'N - 65 00'W to 80 00'N - 143 00'E 5.17 * LONARDI Seamount 43 50'S - 49 00'W 5.12 200 LORD HOWE Rise 24 00'S - 161 30'E to 37 00'S - 166 00'E 5.10 60-600-602 * GEBCO-SCGN/7 LORD HOWE Seamount Chain 31 15'S - 159 00'E to 21 30'S - 159 30'E 5.10 * = Seamounts LORIEN Knoll 54 10'N - 19 50'W 5.04 11-14-102 * = Bank (September 1983) GEBCO-SCGN/6 LOST DUTCHMEN Ridge 24 10'S - 105 10'E 5.09 * LOTUS Seamount 22 35'S - 151 00'W 606-607 LOUISA Bank 11 40'S - 175 55'E 604 * LOUISE A BOYD Bank 72 40'N - 2 50'E 10-100 * = BOYD Seamount LOUISVILLE Ridge 27 00'S - 174 30'W to 43 00'S - 161 30'W 5.10, 5.11 60-61-605 * LOUSY Bank or OUTER BAILEY Bank 60 25'N - 12 35'W 5.04 10-11-14-102-112 * = OUTER BAILEY, GEBCO = LOUSY, INT Charts = OUTER BAILEY or LOUSY LOWRIE Guyot 19 40'N - 150 47'E 5.06 * (December 1983) GEBCO-SCGN/6 LOYOLA Bank 55 03'S - 65 22'W 200 LUSITANIA Bank 23 35'N - 111 42'W 802 * LUZON Plateau 16 50'N - 124 30'E 509 * = BENHAM Plateau LYALL Basin 70 30'S - 167 25'E 5.14, 5.18 LYNCH Seamount 32 45'N - 54 15'W 5.08 * (September 1984) GEBCO-SCGN/6 MABAHISS Fracture Zone 3 00'S - 67 30'E 5.09 * MACCLESFIELD Bank 15 50'N -114 2O'E 5.06 508 * MACDONALD Guyot 19 10'N - 173 15'E 5.06 GEBCO-SCGN/6 MACDONALD Seamount 28 59'S - 140 14'W 5.11 * GEBCO-SCGN/1988 MACGOWEN Reef 1 07'S - 89 54'W 811 * MACNAB Seamount 45 11'N - 135 42'W 50-801 * MACQUARIE Ridge 47 00'S - 166 00'E to 59 20'S - 159 30'E 5.14 * MADAGASCAR Basin 27 00'S - 54 30'E 5.09 70-72-700-701 * MADAGASCAR Ridge 27 00'S - 46 00'E to 34 00'S - 45 00'E 5.09 70-72-700 * = Plateau MADEIRA Abyssal Plain 31 00'N - 23 00'W 5.08 104 * = Plain MADEIRA Rise 33 00'N - 18 30'W 5.08 * = Ridge (35 30'N - 15 45'W) MADINGLEY Rise 4 30'S - 61 00'E 5.09 70-72-702 * MAGDALENA Escarpment 23 30'N -112 00'W 802 * MAGELLAN Rise 7 00'N - 177 00'W 5.07 617 * MAGELLAN Seamounts 18 00'N - 151 00'E to 11 00'N - 157 00'E 5.06 510 * MAGNAGHI Seamount 39 53'N - 11 36'E 301-302 MAHER Seamount 29 30'N - 148 50'W 50-51 * MAHLER Seamount 31 46'N - 164 58'W 50 * MAIKO Seamount 34 02'N - 145 55'E 5.06 * (March 1985) GEBCO-SCGN/6 MAKAROV Basin 81 00'N - 166 00'E to 88 30'N - 120 00'W 5.17 * MAKAROV Seamounts 29 25'N - 153 30'E 5.06 * MAKASSAR Basin 1 30'S - 118 30'E 5.10 * (Nov.1986) MAKASSAR : See SOUTH MAKASSAR Basin MALDIVE Ridge 3 00'N -73 00'E 706 * MALLORY Seamount 36 49'S - 22 22'E 21-22-72-204 * MALLOY Seamount 27 55'S - 8 50'E 21-22-204 * UK Charts = MOLLOY MALPELO Ridge 4 30'N - 80 50'W 5.07 811 * MALVINAS: See FALKLAND MANIHIKI Plateau 11 00'S - 162 30'W 5.10 51 * MANNING Seamounts 38 10'N - 60 40'W 403 * MANUS Basin 3 45'S - 150 00'E 5.10 * MANUS Trench 0 45'S - 144 00'E to 1 45'S - 152 30'E 5.10 506-604 * = WEST MELANESIAN, INT Charts = WEST MELANESIAN (see also WEST MELANESIAN Trench) MAPMAKERS Seamount 27 30'N - 166 30'E 5.06 53 * = MAPMAKER MARANHAO Seamounts 0 35'S - 42 00'W 12-13-20-216 MARARA Seamount 15 12'S - 156 50'W 606 MARCHAND Seamount 54 50'N - 151 45'W 50-810 * MARCUS-WAKE Seamount Group 24 20'N - 150 00'E to 24 00'N -159 20'E 52-510 * (Sept.1984) = Seamounts MAR DEL PLATA Canyon 38 00'S - 53 30'W 5.12 200 * MARGETTS Seamount 14 33'N - 112 07'E 508 * MARIANA Trench 24 30'N - 143 30'E to 11 00'N - 141 30'E 5.06 510 * MARIANA Trough 20 30'N - 143 30'E to 14 00'N - 144 00'E 5.06 510 * (January 1985) MARIANA : See EAST MARIANA Basin, EAST MARIANA Ridge, MIDDLE MARIANA Ridge, and WEST MARIANA Ridge. MARIE BYRD Canyon 75 00'S - 152 50'W 5.18 MARIE BYRD Seamount 70 00'S - 118 00'W 5.15, 5.18 MARIE CELESTE Fracture Zone 18 45'S - 63 00'E to 15 00'S - 69 30'E 5.09 * MARIETTA Seamount 57 02'N - 28 41'W 11-14-102 * MARION DUFRESNE Seamount 54 20'S - 50 50'E 5.13 MARO Bank 71 08'N - 9 25'W 10-113 MARO Reef 25 30'N - 170 45'W 5.07 50-809 * MARQUESAS Fracture Zone 10 00'S - 134 00'W to 8 15'S - 121 00'W 5.11 * MARSHALL Seamount 11 50'N - 165 00'W 809 * MARSHALL Seamounts 10 00'N - 169 00'E 5.06 * (September 1984) MARSILI Seamount 39 13'N - 14 22'E 301-302 MARTHA Bank 10 40'S - 179 35'E 604 MARTIN VAZ Fracture Zone 19 00'S - 18 00'W to 18 00'S - 5 30'W 5.12 MARU : See KAINAN MARU Seamounts MARYLAND Seamount 15 50'N - 160 00'W 50-51-809 * MASCARENE Basin 13 00'S - 57 00'E 5.09 70-71-72-701-702 * = 15 S - 56 E, INT Charts = 18 S - 54 E MASCARENE Plain 19 00'S - 53 00'E 5.09 * MASCARENE Plateau 6 00'S - 58 00'E to 17 00'S - 59 30'E 5.09 71-72-702 * MATHEMATICIANS Seamounts 15 30'N - 111 00'W 5.07 51-802 * MATU Seamount 39 33'N - 138 10'E 511 MAUD Rise 65 00'S - 2 40'E 5.16, 5.18 * (June 1987) MAURICE EWING Bank 50 40'S - 43 30'W 5.16 * MAURICE HILL Ridge 3 30'S - 53 10'E 5.09 Formerly M.N. HILL Ridge MAURITIUS Trench 24 00'S - 54 50'E 5.09 * MAURY Channel 56 30'N - 24 00'W 5.04 102 * = Seachannel MAWSON Bank 73 30'S - 174 00'E 5.18 MAWSON Canyon 63 30'S - 60 30'E 5.18 MAXWELL Fracture Zone 47 40'N - 27 00'W 5.04 MAZATLAN Basin 22 45'N - 108 10'W 802 * McCALL Seamount 18 45'N - 157 05'W 50-51-809 * McKERNAN Seamount 42 20'N - 141 06'W 50 * McKINLEY Seamount 29 30'N - 137 15'W 50-51 * McLEOD Bank 9 54'S - 50 20'E 701-702 * McMANUS Seamount 42 12'N - 139 00'W 50 * McNISH Seamount 40 15'S - 8 30'W 5.12 21-22 MEDINA Bank 34 54'N - 15 15'E 301-302 * MEDINA Seamount 3 17'N - 88 18'W 51-811 * MEDITERRANEAN Ridge 35 00'N - 20 00'E to 35 00'N - 30 00'E 5.05 * MEDNYY Seamount 55 25'N - 167 17'E 813 * MEINESZ : See VENING MEINESZ seamounts MEIYO-DAINI Seamount 39 45'N - 137 13'E 511 MEIYO-DAISAN Seamount 40 21'N - 137 54'E 511 MEIYO Seamount 39 16'N - 136 57'E 511 MEIZI Seamount 53 05'N - 164 45'E 512 * = MEIJI MELANESIAN Basin 0 00' - 166 00'E 5.00, 5.06, 5.10 52-60-61-506-604 * MELITA Bank 34 18'N - 14 30'E 301-302 MELLISH Reef 17 25'S - 155 50'E 5.10 604 * = Rise MELVILLE Bank 38 29'S - 46 46'E 70-72 * MELVILE Fracture Zone 26 00'S - 61 20'E to 34 00'S - 60 00'E 5.09 * MELVILLE Trough 74 00'N - 108 30'W 5.17 * (January 1985) GEBCO-SCGN/6 MENARD Fracture Zone 47 45'S - 124 00'W to 51 00'S - 104 00'W 5.15 * MENARD Guyot 20 50'N - 173 12'E 5.06 GEBCO-SCGN/6 MENARD Seamount 42 12'N - 134 15'W 50-801 * MENDANA Fracture Zone 17 15'S - 99 00'W to 11 00'S - 82 00'W 5.11 * MENDELEEV Abyssal Plain 81 00'N -170 00'W 5.17 * = Plain MENDELEEV Rise 76 00'N - 180 00'W to 86 00'N - 170 00'W 5.17 GEBCO/SCGN/7 (formerly Ridge), * = Ridge MENDELEEV Seamount : See DMITRI MENDELEEV Seamount GEBCO-SCGN/7 MENDELL Knoll 50 42'N - 157 12'W 50-810 * MENDELSSOHN Seamount 25 10'N - 161 39'W 50-51 * MENDOCINO Escarpment 40 00'N - 140 00'W 50-51 * MENDOCINO Fracture Zone 36 00'N - 168 00'W to 40 20'N - 126 00'W 5.07 50 * MENDOCINO Ridge 40 22'N - 127 30'W 50 * MENDOZA Rise 19 30'S - 94 20'W 5.11 * MENDOZA Seamount 9 30'N - 107 14'W 802-811 * MENTAWAI Basin 1 45'S - 100 00'E 5.09 * GEBCO-SCGN/7 MENTAWAI Ridge 4 30'S - 101 20'E 5.09 * GEBCO-SCGN/7 MERCATOR Basin 33 00'N - 165 00'E 5.06 * (Sept.1984) GEBCO-SCGN/6 MERGUI Terrace 9 00'N - 96 45'E 706 * MERMAID Reef 17 05'S - 119 35'E 71 MERNOO Bank 43 30'S - 175 15'E 5.10 * MERZ Seamount 48 32'S - 5 33'E 5.16 21 * (June 1987) METEOR Rise 44 45'S - 4 00'E to 47 10'S - 8 15'E 5.16 21 METEOR Seamounts 48 00'S - 8 30'E 21 * = Seamount METEOR : See GREAT METEOR Bank MEXICO Basin 22 30'N - 95 00'W to 25 00'N - 90 00'W 5.07, 5.08 400-401 * GEBCO Sheets = SIGSBEE Deep MGU Seamount 12 23'N - 61 15'E 5.05 71-72-703-705 * (October 1985) MIAMI Guyot 21 40'N - 161 55'E 5.06 * (March 1985) GEBCO-SCGN/6 MID-ATLANTIC Ridge 52 30'N - 33 00'W to 54 30'S - 1 45'W 5.04, 5.07, 5.12, 5.16 11-12-13-14-21 * MIDDLE AMERICA Trench 17 30'N - 103 00'W to 10 00'N - 86 30'W 5.07 51-802-811 * MIDDLE MARIANA Ridge 21 00'N - 144 30'E 5.06 MIDDLE Reef 51 58'N - 176 03'E 813 * MIDDLETON Reef 29 27'S - 159 07'E 5.10 MID-INDIAN OCEAN Basin 10 00'S - 80 00'E 5.09 70-73-702-706-707 * = MID-INDIAN Basin MID-PACIFIC Seamounts 20 00'N - 172 00'E to 20 00'N - 168 00'W 5.06 * = Mountains (Sept.1984) MIKHAILOV Canyon 65 30'S - 86 00'E 5.18 MILLER Seamount 53 30'N - 144 20'W 5.03 50-810 * MILNE Bank 43 38'N - 38 46'W 11-14 * = Seamount, INT charts = ED (1864-1936) MILNE Seamounts 44 45'N - 40 00'W 5.08 11-13-14 * (September 1983) MINAMI-DAIKOKU Seamount 21 02'N - 144 32'E 510 MINAMI-HIOYOSI Seamount 23 30'N - 141 54'E 510 MINAMI-KASUGA Seamount 21 36'N - 143 38'E 510 * (June 1985) MINAMI-KOHO Seamount 26 14'N - 135 48'E 510 MINERVA Reefs 23 15'S - 179 00'W 5.10 MINERVA Seamount 17 00'S - 37 30'W 5.12 202 INT 202 = Bank MINERVE Reef 22 40'S - 133 35'W 5.11 607 * = EBRILL Reef MINIA Seamount 53 03'N - 34 50'W 5.04 11-13-14 * MISSISSIPPI Fan 27 00'N - 87 30'W 5.08 * MISTERIOSA Bank 18 50'N - 83 50'W 400-401 * MOCHA Fracture Zone 40 00'S - 77 30'W 5.11 * MOCTEZUMA Trough 18 00'N - 107 00'W to 15 30'N - 107 20'W 5.07 * (October 1985) GEBCO-SCGN/6 MOHNS Ridge 71 30'N - 5 00'W to 72 15'N - 2 45'E 5.04, 5.17 * MOLLOY Seamount: See MALLOY Seamount MOLOKAI Fracture Zone 22 00'N - 153 30'W to 25 40'N - 127 00'W 5.07 50-51-504-802-809 * MONA Canyon 19 20'N - 67 35'W 400-402 * MONACO Deep 32 00'N - 24 43'W 5.08 GEBCO-SCGN/6 - Deepest part of CANARY Basin MONO Rise 12 00'N - 80 00'W 5.08 * MONSOON Seamount 14 20'N - 163 02'W 51-809 * MONTAGUE Seamount 20 15'S - 36 45'W 5.12 201-202 * MONTEREY Canyon 36 40'N - 122 05'W 801-802 * MONTEREY Fan 36 00'N - 123 30'W 5.07 * MOONLESS Seamounts 30 45'N - 142 30'W to 28 50'N - 135 45'W 5.07 50-51 * and INT Charts = Mountains MOORE Seamount 48 53'N - 136 00'W 50-801 * MORESBY Canyon 50 40'N - 132 35'W to 53 15'N - 130 35'W 5.03 * (June 1984) GEBCO-SCGN/6 MORESBY Seachannel 46 40'N - 138 10'W to 50 00'N - 135 00'W 5.03 801 * (June 1984) - Replaces MORESBY Channel, GEBCO = Channel MORESBY Seamount 9 49'S - 151 34'E 5.10 GEBCO-SCGN - July 1988 MORETON Seamount 26 05'S - 154 55'E 5.10 60-602 * MORGAN Bank 23 28'N - 111 10'W 802 * MORGAN Reef 17 00'S - 36 10'W 202 MORNINGTON Abyssal Plain 53 00'S - 86 00'W 5.15 MORNINGTON Channel 49 00'S - 79 30'W 5.15 MOROZKO Seamount 45 10'N - 158 15'E 5.06 * (August 1985) GEBCO-SCGN/7 MORTON Bank 11 45'S - 176 25'E 604 MORTON Seamount 50 15'N - 142 30'W 5.03 50-810 * MOSER Seamount 49 29'N - 136 55'W 50-810 * MOSES Reef 22 45'S - 151 10'W 607 * MOSHESH Fracture Zone 54 15'S - 4 55'E 5.16 MOUA-PIHAA Bank 18 18'S - 148 32'W 5.11 GEBCO-SCGN/1988 MOUCHOIR Bank 20 57'N - 70 42'W 400-402-403 * MOUNT ERROR Guyot 10 17'N - 56 01'E 5.05 71-72-703 GEBCO-SCGN/6, * = ERROR Tablemount, INT Charts = ERROR Seamount MOZAMBIQUE Basin 29 00'S - 40 00'E 5.09 70-72-700 * = NATAL Basin MOZAMBIQUE Plateau 27 00'S - 36 00'E to 34 30'S - 34 00'E 5.09 70-72-700 * MOZAMBIQUE Scarp 29 00'S - 37 00'E to 40 00'S - 33 45'E 5.09 * = Escarpment MOZART Seamount 28 40'N - 161 43'W 50-51 * MUERTOS Trough 17 10'N - 68 00'W 5.08 400-402-403 * MUIR Seamount 33 41'N - 62 30'W 11-12-13-403 * MUIRFIELD Bank 13 10'S - 96 05'E 5.09 GEBCO-SCGN/7 * (August 1985) = Reef MUKLUK Channel 48 00'N - 141 45'W 5.03 MURMANSKOYE Rise 70 30'N - 36 30'E 5.01 10 INT Charts = SKOLPEN Bank, GEBCO = MURMAN Rise (see also SKOLPEN Bank) MURRAY Canyon 65 45'S - 73 00'E 5.18 MURRAY Canyon 51 30'N - 176 50'E 813 * MURRAY Fracture Zone 29 00'N - 155 00'W to 33 25'N - 130 00'W 5.07 50-51-801 * MURRAY Ridge 21 00'N - 61 00'E to 23 30'N - 64 00'E 5.05 71-72-73-705 * MURRAY Seamount 54 00'N - 148 30'W 50-810 * MUSASI Bank 44 40'N - 140 25'E 511 * = MUSASHI Banks MUSICIANS Seamounts 26 00'N - 158 00'W to 33 00'N - 166 00'W 5.07 50-51 * MUSSAU Trough 1 00'N - 148 50'E 5.06 506 * = Trench MUSORGSKI Seamount 30 22'N - 163 50'W 50-51 * and INT charts = MUSSORGSKY MYRSETH Bank 71 26'N - 2 50'W 10-100-113 MYTILUS Seamount 39 22'N - 67 09'W 403 * NADESHDA Basin 30 00'N - 148 00'E 5.06 * (AUG.1985) = NADEZHDA GEBCO-SCGN/6 NAMIIBIA Abyssal Plain 30 15'S - 5 30'E 5.12 NANKAI Trough 32 15'N - 135 15'E 5.06 * NANSEI SYOTO Ridge 25 15'N - 126 00'E 5.06 * NANSEI SYOTO Trench 24 30'N - 127 25'E 5.06 509 * NANSEN Basin 84 00'N - 20 00'E to 84 00'N - 90 00'E 5.17 * NAPIER Seamount 15 45'N - 110 48'W 51-802 * NARES Abyssal Plain 23 30'N - 64 30'W 5.08 12-13-400-402-403 * = Plain NARES Bank 11 30'N - 116 10'E 508 * NATAL Seamount 37 26'S - 22 13'E 5.09 21-72-204 * NATAL Valley 32 00'S - 32 30'E 5.09 700 * NATURALISTE Fracture Zone 31 30'S - 105 45'E to 35 30'S - 110 00'E 5.09 NATURALISTE Plateau 34 00'S - 111 30'E 5.09, 5.10 60-70-73-708 * NAUK : See AKADEMII NAUK Rise NAVARIN Canyon 60 45'N - 179 15'E 5.02 * (September 1984) GEBCO-SCGN/6 NAVIDAD Bank 20 00'N - 68 50'W 400-402-403 * NAZARETH Bank 14 30'S - 60 45'E 5.09 702 * NAZCA Ridge 16 00'S - 77 00'W to 23 00'S - 83 00'W 5.11 * NECKER Ridge 21 45'N - 167 45'W 5.07 50 * NEILSON Reef 27 03'S - 146 03'W 5.11 607 * NERO Seamount 27 57'N - 177 58'W 809 * NEVA Shoal 26 00'N - 173 55'W 809 * NEW Bank 15 50'N - 78 40'W 400-401-402 NEW Bank 18 00'N - 78 05'W 400-401-402-403-811 NEW BRITAIN Trench 6 00'S - 152 30'E 5.10 60-604 * NEW CALEDONIA Basin 20 00'S - 162 30'E to 32 00'S - 165 00'E 5.10 60-602 * NEWELL Seamount 16 50'N - 154 45'W 50-51-809 * NEW ENGLAND Seamounts 37 30'N - 60 00'W 5.08 11-12-13-403 * NEWFOUNDLAND Basin 42 30'N - 43 00'W 11-13-14-404 * NEWFOUNDLAND Ridge 40 30'N - 48 00'W 11-12-13 * NEWFOUNDLAND Seamounts 43 50'N - 45 00'W 5.08 11-13 * NEWFOUNDLAND : See GRAND BANKS OF NEWFOUNDLAND NEW GUINEA Basin 3 30'S - 145 30'E 5.10 * NEW GUINEA Trench 0 20'S - 136 45'E 5.10 507 * NEW HEBRIDES : See NORTH NEW HEBRIDES Trench and SOUTH NEW HEBRIDES Trench NEWTON Seamount 16 05'N - 111 35'W 51-802 * NIAS Basin 1 15'N - 98 00'E 5.05 * (Oct.1986) GEBCO-SCGN/7 NICARAGUA Rise 16 20'N - 80 30'W 5.08 400-402 * = NICARAGUAN Rise NICHOLS Seamount 42 50'N - 133 13'W 50-801 * NICOBAR Fan 4 00'N - 92 00'E to 5 00'S - 93 00'E 5.06, 5.09 GEBCO-SCGN/7 NICOBAR-SIMEULUE Basin 5 00'N - 94 30'E 5.05 * (Oct.1986) GEBCO-SCGN/7 NIERENBERG Seamount 44 19'N - 142 07'W 50 * NIGER Cone 4 00'N - 4 00'E 5.05, 5.08, 5.12 * (Sept.1983) = Fan NIKITIN : See AFANASY NIKITIN Seamount NIKKO Seamount 23 05'N - 142 19'E 510 NILE Fan 32 30'N - 31 00'E 5.05 * GEBCO-SCGN/7 NINETYEAST Ridge 7 00'N - 90 00'E to 27 00'S - 87 30'E 5.05, 5.06, 5.09 70-71-73-706-707 * Correct spelling of this name is one word. NIGINI Guyot 41 44'N - 170 12'E 5.06 * = Seamount GEBCO-SCGN/6 NINTOKU Guyot 40 55'N - 170 40'E 5.06 53 * and INT Chart=Seamount NIOBE Seamount 16 20'N - 84 57'W 401-811 * NITINAT Fan 47 55'N - 127 00'W 50-801 * NORDENSKJOLD Basin 76 00'S - 165 00'E 5.18 * NORDKAPP Bank 72 05'N - 26 15'E 10 NORFOLK Basin 31 20'S - 169 10'E 5.10 60-602 * = GAZELLE Basin NORFOLK Ridge 27 00'S - 167 30'E 5.10 60-600-602 * AUS.proposal: NORTH NORFOLK Ridge NORFOLK Trough 35 50'S - 168 00'E 60-600 NORFOLK : See WEST NORFOLK Ridge NORTH AMERICAN Basin 30 00'N - 60 00'W 12-13-400-403 * NORTHAMPTON Seamount 11 35'N - 168 28'W 809 * NORTHAMPTON Seamounts 25 20'N - 172 04'W 50-809 * NORTH AUSTRALIA Basin : See ARGO Plain NORTH BANDA Basin 3 30'S - 125 0'E 5.10 507 * NORTH BRASILIAN Ridge 0 20'N - 41 15'W to 1 45'S - 37 00'W 20-216 * = BELEM Ridge, PARNAIBA Ridge and CEARA Seamounts NORTHEAST Bank 32 20'N - 119 40'W 801-802 * NORTHEAST GEORGIA Rise 52 00'S - 33 15'W 5.16 UK chart 4213 NORTHERN HOLIDAY Seamount 29 33'N - 147 45'W 50-51 * NORTH FIJI Plateau 18 00'S - 174 00'E 5.00, 5.10 602 * = Basin (or WEST FIJI Plateau?) NORTH HAWAIIAN Seamounts : See MUSICIANS Seamounts NORTH KANIN Bank 70 30'N - 42 50'E 5.01, 5.17 NORTH MAGELLAN Rise 12 30'N - 177 00'W 5.07 GEBCO-SCGN/6 NORTH NEW HEBRIDES Trench 12 30'S - 165 50'E 5.10 60-61-604 * NORTH SCOTIA Ridge 53 50'S - 52 45'W to 53 20'S - 44 00'W 5.16 200 UK Chart 4213 NORTH TOKELAU Basin 4 30'S - 167 30'W 5.10 * (January 1985 - Not Trough) GEBCO-SCGN/6 NORTH TRINCO Canyon 8 52'N - 81 25'E 706 * NORTHWEST ATLANTIC MID-OCEAN Channel 59 30'N - 54 30'W to 51 00'N - 44 00'W 5.04 * = Canyon NORTHWEST GEORGIA Rise 52 45'S - 37 15'W 5.16 UK Chart 4213 NORTHWEST HAWAIIAN Ridge : GEBCO-SCGN/6 (Replaces NORTHWEST HAWAIIAN Ridge) See LILIUOKALANI Ridge NORTHWEST PACIFIC Basin 34 5.06 511 * NORTHWEST PACIFIC Rise : See SHATSKY Rise NORTHWIND Abyssal Plain 76 30'N - 160 00'W 5.17 * = Plain NORTHWIND Ridge 76 00'N - 157 30'W 5.17 * NORWEGIAN Basin 67 00'N - 4 00'W to 70 00'N - 5 00'E 5.01, 5.04, 5.17 * NORWEGIAN Deep 59 30'N - 4 20'E 5.01 * (Dec.1985) = Trough NOVA Bank 22 35'S - 159 12'E 5.10 602 * (Nov.1986) NOVA CANTON Trough 4 30'S - 179 30'W to 0 00' - 165 30'W 5.10 52-60-61-617 * = NOVA Trough GEBCO-SCGN/6 NOVARA Knoll 43 00'S - 74 30'E 5.09 70-72-73 NOVA Trough: See NOVA CANTON Trough NOVAYA ZEMLYA Trough 74 00'N - 60 00'E 5.17 * EAST NOVAYA ZEMLYA Trough NOVELTY Shoal 16 45'N - 169 20'W 809 NOYO Canyon 39 31'N - 124 20'W 801 * NOYES Canyon 55 10'N - 134 22'W 500-501 * OATES Bank 70 15'S - 165 15'E 5.14, 5.18 OATES Canyon 69 10'S - 164 30'E 5.14, 5.18 OB Canyon 64 30'S - 93 30'E 5.18 OB Seamount 52 30'S - 41 30'E 5.13 * = Tablemount OB Trench 32 50'S - 98 15'E 5.09 * OBRUCHEV Rise 50 30'N - 168 00'E to 54 00'N - 164 OO'E 5.02 813 * OCEANA Bank 8 30'N - 115 20'W 51 OCEANOGRAPHER Canyon 40 00'N - 68 00'W 5.04 * OCEANOGRAPHER Fracture Zone 36 00'N - 40 00'W to 34 20'N - 32 00'W 5.08 * ODESSEY Seamount 54 30'N - 149 45'W 50-810 OGASAWARA Plateau 26 00'N - 144 00'E 510 * OGASAWARA Ridge 27 15'N - 142 30'E 5.06 OGASAWARA Trough 28 00'N - 141 20'E 5.06 510 *(March 1985) GEBCO-SCGN/6. OGLALA Seamount 50 18'N - 131 28'W 50-801 O'GORMAN Fracture Zone 14 30'N - 109 30'W to 15 30'N - 98 30'W 5.07 GEBCO-SCGN/6:Formerly WEST and EAST O'GORMAN Fracture Zone OJIN Guyot 38 00'N - 170 30'E 5.06 * = Seamount GEBCO-SCGN/6 OKEANOLOGII : See INSTITUTA OKEANOLOGII Rise OKI-DAITO Ridge 23 45'N - 133 00'E 5.06 509 * OKINAWA Trough 26 00'N - 125 40'E 5.06 509 * OKI Ridge 36 50'N - 134 40'E 511 * OLIVOS Bank 36 32'N - 2 50'W 301 OLYMPUS Knoll 45 25'N - 27 40'W 11-14-103 OMAN Basin 23 30'N - 61 00'E 5.05 71-72-73 *= Plain, INT Charts = Basin ONA Basin 59 15'S - 56 00'W 5.16 *(June 1987) O'NEILL Bank : See ORNE (Banc de l') ONE SOUTH Fracture Zone : GEBCO-SCGN/7, See ROMANCHE Fracture Zone ONTONG-JAVA Rise 2 00'N - 156 00'E to 8 00'S - 162 30'E 5.06 506 * KAPINGAMARANGI Rise, GEBCO-SCGN/6 = formerly SOLOMON Rise ORANGE Canyon 31 50'S - 13 00'E 5.12 * ORANGE Cone 31 45'S - 11 30'E 5.12 * = Fan. ORCADAS : See ISLAS ORCADAS Fracture Zone, ISLAS ORCADAS Rise and ISLAS ORCADAS Seamount ORKNEY Deep 60 45'S - 40 00'W 5.16 ORMONDE Seamount 36 40'N - 11 10'W 11-14-103-104 * ORNE (Banc de l') or O'NEILL Bank 22 30'S - 168 55'E 602 OROZCO Fracture Zone 15 30'N - 104 30'W 5.07 51-802-811 * ORPHAN Knoll 50 3O'N - 46 30'W 5.04 11-405 * ORTELIUS Fracture Zone 25 00'N - 162 45'E 5.06 *(September 1984) GEBCO-SCGN/6. OSBORN Plateau 15 00'S - 87 00'E 5.09 * OSBOURN Seamount 26 00'S - 175 00'W 5.10 60-605 * = OZBOURN OSHAWA Seamount 52 22'N - 134 05'W 50-801-810 * OSPREY Reef 14 00'S - 146 40'E 5.10 OST Bank 67 30'N - 30 00'W 112 OUEST Fracture Zone 56 10'S - 57 00'W to 56 50'S - 53 15'W 5.16 OUTER BAILEY Bank : See LOUSY Bank OWEN Bank 6 47'S - 70 14'E 70-71-72-73-702-703 * INT charts = Reported 1811 OWEN Fracture Zone 5 00'N - 53 30'E to 23 00'N - 62 45'E 5.05 71-72-703-705 * OZIN Seamount 38 15'N - 171 00'E 53 PACIFIC-ANTARCTIC Ridge 65 30'S - 178 00'W to 55 00'S - 138 00'W 5.14, 5.15, 5.18 * PACIFIC-ANTARCTIC Rise 45 00'S - 120 00'W 61 PACIFIC : See CENTRAL PACIFIC Basin, EAST PACIFIC Rise, MID-PACIFIC Seamounts, NORTHWEST PACIFIC Basin, and SOUTHWEST PACIFIC Basin PAGANINI Seamount 28 41'N - 162 40'W 50-51 * PAISLEY Seamount 14 05'S - 41 30'E 5.09 70-71-72-701 * GEBCO-SCGN/7 PALAU Trench 6 20'N - 134 00'E to 8 00'N - 135 10'E 5.06 507 * PALAU : See KYUSYU-PALAU Ridge PALAWAN Trough 8 00'N - 115 30'E 5.06 508 * PALINURO Seamount 39 30'N - 14 48'E 301-302 PALMER Seamount 18 38'N - 156 35'W 809 * PANAMA Basin 4 00'N - 83 00'W 5.07 51-811 * PANAMA Fracture Zone 5 30'N - 82 40'W 5.07 * PANDORA Bank 12 00'S - 172 10'E 5.10 604 * PANZARINI Seamount 40 00'S - 11 45'E 5.12 21-22-204 * PAPATUA Seamount 2 08'N - 124 54'E 5.06 GEBCO-SCGN/6 PAPP Seamount : See THE PAPS Seamount PAPUA Abyssal Plain 14 00'S - 152 00'E 5.10 * = Plain (November 1986) PAPUA Plateau 10 45'S - 146 00'E 5.10 * PARA Abyssal Plain 6 00'N - 42 00'W 5.12 PARAIBA Seamount 7 30'S - 33 10'W 12-13-202 PARAMOUNT Seamount 3 20'N - 90 45'W 51-811 PARECE VELA Basin 18 00'N - 139 00'E 5.06 52-510 * = WEST MARIANA Basin, INT Charts = WEST MARIANA Basin (See also WEST MARIANA Basin) PARKER Seamount 52 35'N - 151 15'W 50-810 * PARKS Seamount 44 14'N - 129 56'W 50-801 * PARNAIBA Ridge 1 45'S - 37 00'W 5.12 12 * PASCAL Seamount 15 49'N - 111 15'W 802 * PASTOURET Spur 48 38'N - 13 30'W 5.04 GEBCO-SCGN - June 1988 PATHFINDER Seamount 50 55'N - 143 15'W 50-810 * PATTON Escarpment 32 20'N - 120 00'W 5.07 801-802 * PATTON Seamount 54 37'N - 150 25'W 5.03 50-810 * PATTON Seamounts 54 50'N - 152 50'W to 54 00'N - 147 15'W 50-810 * PAUL Seamount 23 26'N - 172 36'W 50 * PAZ (Banco de la) 21 15'N - 79 48'W 400-401-402-403 * = PAZ Bank PEARL AND HERMES Reef 27 50'N - 175 50'W 5.07 809 PEDRO Bank 17 00'N - 78 30'W 5.08 12-13-400-401-402-403-811 * PEIRCE Seamount 53 44'N - 136 32'W 50-801-810 * PELSAERT Seamount 31 15'S - 108 50'E 5.09 * PENGUIN Bank 11 25'S - 175 30'E 604 * PENGUIN Bank 21 02'N - 157 30'W 809 * PENNELL Bank 74 30'S - 180 00' 5.18 * UK Chart 4065 PENRHYN Basin 9 00'S - 155 30'W 5.11 61-617 * PENSACOLA Seamount 18 17'N - 157 20'W 50-51-809 * PERNAMBUCO Abyssal Plain 7 30'S - 27 00'W 5.12 202-215-216 * = Plain PERNAMBUCO Plateau 8 10'S - 34 15'W 12-13-202-215 * (March 1985) (See also RECIFFE Plateau) INT 202-215 = RECIFE Plateau PERNANBUCO Seachannel 12 00'S - 33 15'W 5.12 GEBCO-SCGN/6 PERNAMBUCO Seamounts 8 30'S - 32 00'W to 9 25'S - 29 50'W 5.12 12-20-202-215 * PERRET Seamount 19 28'N - 157 19'W 809 * PERSEJ Bank 78 00'N - 36 00'E 5.17 10 INT 10 = PERSEUS Bank, GEBCO-SCGN/7 = PERSEJ PERTH Basin 30 00'S - 110 00'E 5.09, 5.10 * PERTH Canyon 32 00'S - 115 00'E 5.09, 5.10 * PERU Basin 14 00'S - 83 00'W 5.11 * PERU-CHILE Trench 6 00'S - 81 50'W to 39 00'S - 75 00'W 5.11 * PERVENETS Canyon 59 30'N - 178 00'W 5.03 * (September 1984) GEBCO-SCGN/6. PESCADERO Trough 23 55'N - 108 45'W 5.07 802 * PETACALCO Canyon 17 30'N - 102 00'W 811 * PETELIN Seamount 22 49'S - 160 51'W 5.10 GEBCO-SCGN/7. PETERSEN Bank 65 45'S - 110 20'E 5.14, 5.18 * PETERS Ridge 50 33'N - 137 30'W 50-500-801-810 * PETREL Bank 52 10'N - 179 50'E 50-813 * PETREL Bank 24 39'N - 112 47'W 802 * PETREL Spur 52 35'N - 179 30'W 813 * PHILIPPI Canyon 65 45'S - 78 30'E 5.18 PHILIPPINE Basin 16 00'N - 130 00'E 5.06 509 * PHILIPPINE Trench 10 00'N - 126 45'E 5.06 509 * PHYSALIA Seamount 39 51'N - 66 57'W 403-404 * PICO Fracture Zone 39 00'N - 40 00'W to 37 30'N - 32 00'W 5.08 * (December 1983) PICKET Seamount 39 38'N - 65 58'W 403-404 * PICKLE Bank 20 25'N - 80 25'W 400-402 * = Reef PILLSBURY Seamount 0 25'N - 17 05'W 12-14-21-209-215 * PINTA Bank 0 45'N - 90 44'W 811 * PIONEER Fracture Zone 36 30'N - 151 00'W to 38 40'N - 127 30'W 5.07 * PIONEER Seamount 37 21'N - 123 25'W 50-51-801-802 * PIONEER Tablemount 26 00'N - 173 26'W 809 * PITT Bank 7 10'S - 71 25'E 70-71-72-73-702-703 PLANTAGENET Bank 31 59'N - 65 11'W 400-403 * PLATO Seamount 33 15'N - 29 35'W 5.08 11-12-14 * PLINY Trench 34 25'N - 26 05'E 302 * POBEDA Canyon 63 00'S - 99 10'E 5.13, 5.18 POCHNOI Canyon 52 00'N - 179 30'W 813 POCKLINGTON Trough 11 30'S - 155 40'E 5.10 * POINCARE Seamount 5 15'N - 111 20'W 802 * POLARSIRKEL Valley 64 50'S - 8 00'E 5.18 POLE Abyssal Plain 87 00'N - 120 00'E 5.17 * = Plain POPCORN Ridge 29 26'N - 117 40'W 802 * PORCUPINE Abyssal Plain 49 00'N - 16 00'W 5.04 11-14-102 * = Plain PORCUPINE Bank 53 20'N - 13 40'W 5.04 11-14-102 * PORCUPINE Seabight 50 30'N - 13 00'W 5.04 102 * (September 1983) PORTLAND Bank 23 40'S - 134 25'W 5.11 607 * = Reef PORTLOCK Bank 58 20'N - 150 30'W 810 * POSADOVSKY Canyon 65 40'S - 89 30'E 5.18 POWELL Basin 62 00'S - 50 00'W 5.16, 5.18 * POWERS Seamount 19 37'N - 158 55'W 50-51-809 * POYDENOT Shoal 9 50'S - 62 00'E 702 PRATT Guyot 56 15'N - 142 30'W 5.03 50-810 * = Seamount PRESIDENT JACKSON Seamount 42 33'N - 127 48'W 50-801 * PRESIDENT THIERS Bank 24 40'S _ 145 55'W 5.11 607 * = Seamount PRESTRUD Bank 77 25'S - 159 30'W 5.18 PRIBILOF Canyon 56 15'N - 168 25'W to 55 30'N - 171 00'W 5.03 813 * GEBCO-SCGN/7 PRINCE ALBERT Sound 70 20'N - 115 45'W 5.03 PRINCE EDWARD Fracture Zone 47 30'S - 34 30'E to 42 00'S - 36 30'E 5.09, 5.13 70-72 * PRINCESSE ALICE Bank 38 5'N - 29 15'W 5.08 11-12-14-103 * PRINCESS ELIZABETH Trough 64 10'S - 83 00'E 5.13 PRITCHETT Seamount 50 20'N - 161 05'W 50-810-813 * PROA Seamount 11 20'N - 163 50'W 809 * PROKOFYEV Seamount 25 51'N - 157 53'W 50-51 INT charts = PROKOFIEV PROTEA Seamount 36 50'S - 18 10'E 5.12 21-22-204 * PROTECTOR Basin 59 00'S - 49 00'W 5.16 PROTECTOR Shoal 55 59'S - 28 10'W 5.16 GEBCO-SCGN/1988 PROVENCAUX Bank 35 34'N - 2 27'W 301 * PROVIDENCE Reef 9 30'S - 51 15'E 5.09 * (April 1986) PTOLEMY Basin 27 30'N - 156 30'E 5.06 * (Septembre 1984) GEBCO-SCGN/6. PUCCINI Seamount 32 15'N - 162 21'W 50-51 * PUERTO RICO Trench 19 30'N - 68 30'W to 19 15'N - 62 00'W 5.08 12-13-400-402-403 * PUKAKI Rise 49 30'S - 171 40'E 5.14 60-600-601 * = Knoll PUTNAM Seamount 51 33'N - 160 25'W 50-810 * PUYSEGUR Trench 46 15'S - 165 10'E to 49 20'S - 163 45'E 5.10, 5.14 * GEBCO-SCGN/6 (formerly Trough) QUEBRADA Fracture Zone 3 30'S - 107 00'W to 4 00'S - 101 00'W 5.11 * QUEENSLAND Guyot 27 30'S - 155 06'E 5.10 60-602 * = Tablemount, INT Charts = Seamount QUEENSLAND Plateau 16 00'S - 150 00'E 5.10 60 * QUEIROS Seamount 10 00'N - 108 50'W 51-802-811 * QUINN Seamount 56 15'N - 145 15'W 50-810 * QUIROS Fracture Zone 22 30'S - 100 00'W to 22 00'S - 92 00'W 5.11 * = QUEIROS QUITA SUENO Bank 14 20'N - 81 15'W 400-402-811 * RACHMANINOV Seamount 29 35'N - 163 24'W 50-51 * and INT charts = RACHMANINOFF RAFF Seamounts 44 09'N - 141 48'W 50 * RAITA Bank 25 37'N - 169 27'W 50-809 * RAITT Seamount 42 39'N - 143 03'W 50 * RANGER Bank 28 34'N - 115 30'W 802 * RAPANO Ridge 26 40'N - 159 00'W 50-51 * RAT ISLAND Canyon 51 30'N - 177 51'E 813 * RAUKUMARA Plain 37 00'S - 178 30'E 5.10 * RAVEL Seamount 27 16'N - 161 40'W 50-51 * RECIFE Plateau 8 10'S - 34 15'W 12-13-202-215 * = Discontinued (June 1985) (See also PERNAMBUCO Plateau) INT 12-13 = PERNAMBUCO Plateau RECORDER Guyot 25 10'S - 154 55'E 5.10 60-602 * = Tablemount, INT Charts = Seamount REED Bank 11 20'N - 116 45'E 5.06 507-508 * (October 1985) REINGA Ridge 33 20'S - 170 00'E 60-602 * RENE Reef 16 44'N - 179 00'E 504 RENNICK Trough 69 25'S - 162 00'E 5.14, 5.18 RESEARCHER Ridge 15 00'N - 50 00'W 5.08 * RESEARCHER Seamount 27 50'N - 67 50'W 5.08 * RESERVE Bank 43 30'S - 177 00'E 5.10 * RETRIEVER Seamount 39 48'N - 66 15'W 403-404 * REUNION Trench 24 00'S - 53 00'E 5.09 * REVELLE Guyot 19 35'N - 179 30'E 5.06 GEBCO-SCGN/6 REVERE Channel 49 15'N - 129 20'W 5.03 REYKJANES Ridge 57 00'N - 34 00'W to 63 00'N - 25 00'W 5.04 11-14-102-112 * RHODES Basin 35 55'N - 28 35'E 302 * RHONE Fan 42 30'N - 5 00'E 5.05 * GEBCO-SCGN/7 RIBATSCHI Bank 69 50'N - 33 30'E 5.01 RICHARDSON Seamount 40 12'S - 14 41'E 21-22-204 * RICHARDS Seamount 42 50'N - 136 27'W 50-801 * RIEMANN Seamount 12 03'N - 110 04'W 51-802-811 * RIGAULT DE GENOUILLY Shoal 19 15'S - 151 30'W 606-607 INT 606 = Seamount RIO DE LA PLATA Canyon 36 45'S - 52 45'W 5.12 200 * RIO GRANDE Abyssal Plain 36 00'S - 35 00'W 20-201 RIO GRANDE Fracture Zone 29 30'S - 22 00'W to 27 30'S - 4 00'W 5.12 22-201 INT Charts = 28 S - 31 W RIO GRANDE Gap 30 30'S - 39 15'W 5.12 20-22-201 * (see also VEMA Channel) INT 20 and 22 = VEMA Channel, INT 201 = RIO GRANDE Channel RIO GRANDE Plateau 31 00'S - 35 00'W 5.12 20-201 * = Rise RIONAL Reef 17 16'N - 177 16'E 809 RITSCHER Canyon 68 15'S - 30 00'E 5.18 RIVERA Fracture Zone 19 10'N - 108 20'W 5.07 802 * ROBBIE Ridge 10 30'S - 175 30'W 5.10 52-60-605-617 * ROCARD : See Yves ROCARD Seamount ROCKALL Bank 55 30'N - 17 15'W to 58 10'N - 13 30'W 5.04 11-14-102 * ROCKALL Plateau 56 20'N - 18 50'W 5.04 11-14-102 * = Rise (59 N - 14 W) ROCKALL Trough 53 30'N - 15 40'W to 56 20'N - 12 00'W 5.04 102 ROCKALL : See HATTON-ROCKALL Basin ROCKAWAY Seamount 36 10'N - 52 15'W 12-13 * RODRIGUES Ridge 19 30'S - 61 50'E 5.09 70-71-72-702 * = RODRIGUES, GEBCO and INT Charts = RODRIGUEZ, GEBCO-SCGN/6 RODROGUEZ Seamount 34 03'N - 121 04'W 50-801-802 * ROE Bank 10 10'N - 96 40'E 71-73-706 ROGERS Seamount 17 00'S - 37 00'W 5.12 202 INT 202 (Brazil) = RODGER Bank ROGGEVEEN Basin 31 30'S - 96 30'W 5.11 ROGGEVEEN Rise 31 15'S - 90 30'W 5.11 ROHAN Seamount 54 45'N - 22 20'W 11-14-102 ROMANCHE Fracture Zone 1 00'S - 28 00'W to 1 00'N - 15 00'W 5.12 215 * GEBCO-SCGN/7 ROMANCHE Gap 0 20'S - 18 00'W 5.12 12-14-21-209 * RONCADOR Bank 13 32'N - 80 03'W 400-402-811 * ROO Rise 12 15'S - 111 30'E 5.09 60-708 * ROSALIND Bank 16 30'N - 80 30'W 5.08 400-401-402-811 * ROSARIO Bank 18 30'N - 84 05'W 400-401-402 * (November 1986) ROSA Seamount 26 12'N - 114 58'W 802 * ROSE Bank 11 00'S - 179 45'E 604 ROSEMARY Bank 59 12'N - 10 15'W 5.04 11-14-102 * ROSENGARTEN 63 30'N - 12 10'W 112 Bank ROSS Bank 76 45'S - 175 30'E 5.18 ROSS Canyon 75 00'S - 163 10'W 5.18 ROSSINI Seamount 32 12'N - 163 00'W 50-51 * ROST Bank 68 25'N - 12 25'E 5.01, 5.17 * ROWLEY Reefs 17 20'S - 119 20'E 5.10 71 * = Shoals ROWLEY Shelf 18 45'S - 118 30'E 5.10 * ROYAL Trough 16 10'N - 49 20'W 5.08 * R.S.A. Seamount 39 30'S - 6 30'W 5.12 21-22 * RUDE Knoll 51 00'N - 170 00'W 50-810 * RUMBLE III Seamount 35 45'S - 178 30'E 60-600 RUSSER Bank 75 45'N - 13 00'E 10 RYOHU-DAINI Seamount 40 38'N - 146 50'E 511 * = SMETANIN Seamount RYOHU Seamount 38 00'N - 145 58'E 511 * RYOFU Seamount SAAVEDRA Seamount 10 18'N - 107 40'W 51-802-811 * SABA Bank 17 30'N - 63 30'W 400-402-403 * SAGITTARIUS Seachannel 48 45'N - 158 30'W to 53 00'N - 156 30'W 5.03 SAGLEK Bank 59 00'N - 61 30'W 5.04 13 * SAHARAN Seamounts 25 30'N - 20 00'W 5.08 * (September 1983) GEBCO-SCGN/6 SAHUL Banks 12 20'S - 123 30'E to 10 50'S - 126 15'E 5.10 603 * = Bank SAHUL Shelf 14 30'S - 124 00'E to 11 30'S - 129 00'E 5.10 * ST. ANNA Trough : * See SVYATAYA ANNA Trough, GEBCO-SCGN/7 ST. HELENA Fracture Zone 17 30'S - 19 00'W to 16 00'S - 8 00'W 5.12 ST. LAZARUS Bank 12 15'S - 41 30'E 5.09 70-71-72-701 * SAINT PAUL Fracture Zone 0 30'N - 30 00'W to 1 30'N - 17 00'W 5.08, 5.12 13-215-216 * ST. PIERRE Bank 39 00'S - 77 45'E 5.09 * SAINT ROGATIEN Bank 24 20'N - 167 08'W 809 * SALA Y GOMEZ Ridge 26 00'S - 100 00'W to 25 00'S - 88 00'W 5.11 * SALDANHA : See ALMIRANTE SALDANHA Seamount SALMON Bank 27 00'N - 176 30'W 5.07 809 * SALSIPUEDES Basin 29 15'N - 113 30'W 802 * SAMOA Basin 16 30'S - 165 00'W 5.10 61 * SAMOAN Passage 9 30'S - 168 45'W 617 SANAE Canyon 68 30'S - 2 45'W 5.18 SANAK Bank 54 16'N - 162 00'W 810-813 * SAN CLEMENTE Basin 32 15'N - 117 50'W 801-802 * SANDERS Seamount 52 35'S - 1 55'E 5.16 21 * (June 1987) SAN DIEGO Trough 32 40'N - 117 35'W 801 * SANDWICH : See SOUTH SANDWICH Fracture Zone and SOUTH SANDWICH Trench SAN JOSE Canyon 22 45'N - 109 50'W 802 * SAN JUAN Seamount 33 02'N - 121 00'W 50-801-802 * SAN MARTIN Canyon 67 20'S - 47 35'W 5.18 SAN MARTIN Seamounts 58 30'S - 95 00'W 5.15 SAN NICOLAS Basin 33 03'N - 119 05'W 801-802 * SAN PABLO Canyon 27 15'N - 114 35'W 802 * SAN PEDRO MARTIR Basin 28 20'N - 112 30'W 802 * SANPUKU Seamount 22 52'N - 142 40'E 510 SAN QUINTIN Basin 30 00'N - 116 40'W 802 * SANTA CRUZ Basin 33 40'N - 119 33'W 801-802 * SANTA LUCIA Bank 43 35'N - 9 30'E 301 * SANTA LUCIA Bank 34 50'N - 121 24'W 801-802 * SANTA LUCIA Escarpment 34 30'N - 121 42'W 801-802 * SANTA MONICA Canyon 33 55'N - 118 38'W 802 * SANTOS Plateau 26 30'S - 42 30'W 5.12 20-201 * INT Charts = SAO PAULO Plateau SAO PAULO Channel 28 30'S - 40 30'W 20-201 SAO PAULO Fracture Zone 0 30'N - 29 00'W to 1 30'N - 18 30'W 5.08, 5.12 215-216 GEBCO 5.08-5.12 = SAINT PAUL Fracture Zone SAPMER Seamount 36 48'S - 52 07'E 5.09 GEBCO-SCGN/1988 SARDINO-BALEARIC Plain 39 30'N - 6 30'E 5.05 301 GEBCO-SCGN/7 SARMIENTO Ridge 5 40'S - 82 40'W 5.11 * SARS Seamount 59 45'S - 69 00'W 5.16 20 * = Bank, INT Chart = Bank SAUNDERS Basin 76 50'S - 155 00'W 5.18 SAURY Seamount 12 30'N - 80 55'W 811 * SAXTON Seamount 47 24'N - 157 30'W 50 * SAVU Basin 9 30'S - 122 45'E 5.10 SAYA DE MALHA Bank 8 20'S - 60 10'E to 11 15'S - 61 50'E 5.09 702 * SCARLATTI Seamount 27 37'N - 160 15'W 50-51 * SCHAEFER Seamount 43 00'N - 132 26'W 50-801 * SCHJETMAN Reef 16 08'N - 178 57'W 5.07 809 SCHMITT-OTT Seamount 39 26'S - 13 45'E 5.12 21-22-204 * SCHOPPE Ridge 51 10'N - 139 30'W 50-810 * SCHOTT Seamount 48 39'N - 155 52'W 50 * SCHUBERT Seamount 31 56'N - 162 09'W 50-51 * SCHULZ Bank 73 52'N - 7 30'E 10-100 SCHUMANN Seamount 25 42'N - 160 11'W 50-51 * SCHWABENLAND Canyon 66 35'S - 18 00'E 5.18 SCHWABENLAND Seamount 46 00'S - 0 10'E 5.12, 5.16 21 * (June 1987) SCOTIA : See NORTH SCOTIA Ridge, SOUTH SCOTIA Ridge and WEST SCOTIA Ridge SCOTT Canyon 71 35'S - 179 00'E 5.14, 5.18 SCOTT Seachannel 49 55'N - 133 00'W 801-810 * SCOTT Seamount 50 25'N - 141 20'W 5.03 50-810 * SCOTT Seamounts 68 00'S - 179 50'W 5.14, 5.18 * SCOTT ISLAND Bank SCOTT Shoal 73 14'S - 177 45'E 5.18 SCRIPPS Guyot 23 50'N - 159 23'E 5.06 * (January 1985) GEBCO-SCGN/6 SCULPIN Ridge 18 00'N - 169 00'W to 13 00'N - 165 00'W 5.07 * (Septembre 1984) GEBCO-SCGN/6 SEADRAGON Ridge 12 30'N - 158 45'W 51-809 * SEAGULL Shoal 4 45'S - 54 10'E 702-703 SEALARK Fracture Zone 7 30'S - 65 30'E to 2 30'S - 69 30'E 5.09 * SEAMAP Channel 51 45'N - 162 20'W 5.03 50-810 * = Seachannel SEDLO Seamount 40 25'N - 26 55'W 5.08 * (August 1985) GEBCO-SCGN/7 SEDNA Ridges 47 30'N - 143 16'W 50 * SEGUNDO Seamount 13 00'N - 165 05'W 809 * SEINE Abyssal Plain 34 00'N - 12 30'W 5.08 * = Plain SEINE Seamount 33 50'N - 14 20'W 5.08 11-12-14-104 * SELFRIDGE Bank 20 55'S - 157 05'E 602-604 SELKIRK Rise 38 00'S - 81 15'W 5.11 * SEMINOLE Seamount 49 46'N - 129 50'W 50-801 * SENGFELLER Seamount 49 50'N - 157 45'W 50 * SENGHOR Seamount 17 10'N - 21 55'W 14 Source : Woods Hole Oceanographic Institution SENTINELLA Bank 38 02'N - 9 43'E 301 SERAM Trough 3 00'S - 131 20'E 5.10 * = CERAM SERMILIK Deep 64 40'N - 38 05'W 112 * = Valley SERRANA Bank 14 23'N - 80 12'W 400-402-811 * SERRANILLA Bank 15 50'N - 79 50'W 400-401-402-811 * SESOSTRIS Bank 13 05'N - 72 00'E 71-72-73 SEVER Spur 79 40'N - 118 00'W to 82 00'N - 128 00'W 5.17 GEBCO-SCGN/7 SEYCHELLES Bank 5 00'S - 56 00'E 5.09 70-71-72-702-703 * SHACKLETON Canyon 75 15'S - 166 00'W 5.18 SHACKLETON Fracture Zone 59 00'S - 61 00'W to 60 40'S - 56 30'W 5.16 SHACKLETON Seamount 36 57'S - 22 45'E 204 * SHAKA Fracture Zone 53 30'S - 9 00'E 5.16 SHAKA Ridge 51 45'S - 11 50'E 5.16 21 SHALOVICH Seamount 46 09'N - 135 12'W 50-801 * and INT charts = SHALOWITZ SHANNON Seamount 43 00'S - 2 30'E 5.12, 5.16 21-22 * SHATSKIY Rise 31 00'N - 156 00'E to 43 30'N - 167 30'E 5.06 53-511 * GEBCO-SCGN/6 SHCHERBAKOV Seamount 10 55'S - 104 40'E 5.09 707-708 * SHEBA : See EAST SHEBA Ridge and WEST SHEBA Ridge SHELDRAKE Seamount 38 25'N - 62 10'W 403 * SHEPARD Guyot 19 10'N - 179 45'W 5.07 * (January 1985) GEBCO-SCGN/6 SHEPHERD Seamount 17 32'N - 154 07'W 809 * SHETLAND : See FAEROE-SHETLAND Channel and SOUTH SHETLAND Trench SHIMADA Seamount 16 52'N - 117 31'W 5.07 50-51-802 * GEBCO 5.07 = SHAMADA SHIRASE Basin 76 40'S - 158 00'W 5.18 SHIRSHOV Ridge 58 15'N - 170 45'E 5.02 50-813-814 * SHONA Ridge 51 00'S - 2 45'E 5.16 21 SHOR Seamount 42 30'N - 133 05'W 50-801 * SHORTLAND Canyon 59 00'N - 45 00'W 5.04 * = 43 50'N - 58 15'W, GEBCO-SCGN/6 SHOSTAKOVICH Seamount 33 16'N - 164 53'W 50 * SHOWA Guyot 43 00'N - 170 30'E 5.06 GEBCO-SCGN/6 SHULEYKIN Seamount 41 15'N - 163 15'E 5.06 * GEBCO-SCGN/7 SHUMAGIN Bank 54 39'N - 159 22'W 810 * SIBELIUS Seamount 27 13'N - 160 44'W 51 * SIBERIA Abyssal Plain 86 30'N - 165 00'E 5.17 * = FLETCHER Plain SIBONEY Seamount 33 20'N - 61 40'W 12-13-403 * SIERRA LEONE Basin 4 45'N - 17 00'W 5.08, 5.12 14-21-209 * SIERRA LEONE Fracture Zone 6 00'N - 37 00'W to 7 00'N - 27 00'W 5.08, 5.12 * SIERRA LEONE Rise 8 40'N - 20 10'W 5.08, 5.12 14-21-104-215 * SIGSBEE Deep 23 52'N - 91 35'W 5.07, 5.08 * = See MEXICO Basin SIGSBEE Escarpment 26 00'N - 92 30'W 5.07, 5.08 * SIKOKU Basin 29 00'N - 137 00'E 5.06 510 SILVER Bank 20 30'N - 69 45'W 400-402-403 * SILVERTOWN Bank 21 25'N - 79 55'W 400-401-402-403 * SIMPSON : See ERIC SIMPSON Fracture Zone SINAIA Bank 38 56'N - 25 50'E 302 SIQUEIROS Fracture Zone 8 30'N - 105 30'W to 9 00'N - 101 00'W 5.07 51-802-811 * SIRIBESI Seamount 43 33'N - 139 44'E 511 SIRIUS Bank 4 00'S - 35 55'W 202-215 SIRIUS Seamount 52 00'N - 160 50'W 5.03 50-810 * SITITO-OZIMA Ridge 33 15'N - 139 30'E to 26 00'N - 141 00'E 5.06 SIXTYMILE Bank 32 03'N - 118 15'W 801-802 * SKLINNA Bank 65 15'N - 10 15'E 5.01 10-101 * (December 1985) SKOLPEN Bank 70 30'N - 36 30'E 5.01 10 GEBCO = MURMAN Rise (See also MURMANSKOYE Rise) SMETANIN Seamount 40 40'N - 146 50'E 5.06 * (August 1985) GEBCO-SCGN/7 SMOOK Seamount 55 09'N - 150 07'W 50-810 * SNOWDEN Seamounts 16 00'N - 156 00'W 809 * SOGA Guyot 43 20'N - 170 00'E 5.06 GEBCO-SCGN/6 SOHM Abyssal Plain 34 00'N - 55 00'W 5.08 11-12 * = Plain SOLANDER Trough 50 20'S - 164 50'E to 48 50'S - 165 30'E 5.14 60-600- 601 * SOLEDAD Basin 30 10'N - 117 35'W 802 * SOLEDAD Canyon 23 40'N - 109 32'W 802 * SOLOMON Rise : See ONTONG-JAVA Rise, GEBCO-SCGN/6 SOLOMON : See SOUTH SOLOMON Trench SOMALI Basin 0 00' - 51 00'E 5.05, 5.09 71-72-701-702-703 * SOMALI Plain 5 00'N - 52 30'E 703 * SOMERVILLE Bank 12 40'S - 60 50'E 5.09 SONNE Seamount 15 07'N - 156 40'W 5.07 * June 1985, GEBCO-SCGN/6 SOQUEL Canyon 36 48'N - 122 00'W 802 * SORBAKKEN 73 47'N - 19 00'E 10-100 Island slope SOUDAN Bank 18 35'S - 58 45'E 70-71-72-702 * SOUTH ADRIATIC Basin 42 00'N - 17 30'E 5.05 301-302 * and INT Charts = ADRIATIC Basin, GEBCO-SCGN/7 SOUTH AUSTRALIAN Basin 38 30'S - 129 00'E 5.10 60-709 * GEBCO = SOUTH AUSTRALIA SOUTH BANDA Basin 6 30'S - 127 30'E 5.10 * SOUTH CHINA Basin 14 30'N - 115 30'E 5.06 508 * SOUTHEAST INDIAN Ridge 26 00'S - 71 30'E to 61 00'S - 156 00'E 5.09, 5.13, 5.14 70-73 * SOUTHERN Bank 10 30'N - 116 40'E 507 * = Reefs SOUTH FIJI Basin 26 00'S - 176 00'E 5.10 60-602-605 * Australia proposal : FIJI Basin SOUTH FIJI Ridge 28 24'S - 179 25'W 605 * = LAU Ridge SOUTH INDIAN Abyssal Plain : See AUSTRALIAN-ANTARCTIC Basin, GEBCO-SCGN/7 SOUTH MAKASSAR Basin 4 15'S - 118 30'E 5.10 * SOUTH NEW HEBRIDES Trench 17 45'S - 167 20'E to 22 45'S - 174 10'E 5.10 60-61-602 * = NEW HEBRIDES Trench SOUTH ORKNEY Trough 60 10'S - 44 00'W 5.18 * SOUTH SANDWICH Fracture Zone 60 45'S - 24 00'W to 60 30'S - 17 30'W 5.16, 5.18 * (June 1987) SOUTH SANDWICH Trench 57 30'S - 24 00'W 5.16 21 * SOUTH SCOTIA Ridge 60 45'S - 53 30'W to 60 45'S - 42 15'W 5.16, 5.18 * (June 1987) Formerly SCOTIA Ridge SOUTH SHETLAND Trench 61 15'S - 60 00'W 5.16 * = Trough SOUTH SOLOMON Trench 11 20'S - 162 45'E 5.10 52-60-604 * INT Charts (AUS) = SOUTH SOLOMONS SOUTH TASMAN Rise 46 00'S - 146 00'E to 49 00'S - 150 00'E 5.14 60-601 * INT Charts = SOUTH TASMANIA Ridge SOUTH TRINCO Canyon 8 40'N - 81 38'E 706 * SOUTHWEST INDIAN Ridge 27 00'S - 66 30'E to 54 45'S - 0 00' 5.09, 5.13, 5.16 21-70-72-700 * SOUTHWEST PACIFIC Basin 23 00'S - 170 00'W to 42 00'S - 132 00'W to 57 00'S - 170 00'E 5.10, 5.11, 5.14 61 * GEBCO-SCGN-6 SPAR Fracture Zone 69 00'N - 17 40'W 5.04, 5.17 * (December 1983) SPEAKERS Bank 5 00'S - 72 20'E 70-71-72-73-702-703-707 SPIESS Seamount 54 40'S - 0 15'E 21 * SPILHAUS Seamount 42 40'N - 141 45'W 50 * SPITSBERGEN Bank 75 20'N - 21 00'E 5.17 10 * GEBCO = BJORNOYA SPRINGFIELD Seamount 48 04'N - 130 12'W 50-801 * SRIVASTAVA Seamount 44 31'N - 136 07'W 50-801 * STALEMATE Bank 53 05'N - 170 55'E 50-813 * STALEMATE Canyon 52 50'N - 171 25'E 813 * STANDARD Seamount 35 10'S - 157 50'E 60-601-602 * STANLEY Seamount 43 08'N - 143 35'W 50 * STEEL VENDOR Seamount 40 23'N - 129 27'W 50-801 * STEMBEL Knoll 29 07'N - 136 33'W 51 * STETSON Guyot 19 40'N - 176 05'E 5.06 * (January 1985) GEBCO-SCGN-6 STEVENS Seamount 48 09'N - 158 00'W 50 * STIRNI Seamount 49 08'N - 132 18'W 50-801 * STOCKS Seamount 12 10'S - 32 00'W 5.12 * STOKES Bank 38 51'N - 25 20'E 302 STOR Bank 77 40'N - 33 00'E 10 STOREGGA 63 00'N - 5 30'E 5.01 10-101 Continental slope STOREGG Bank 67 10'S - 64 10'E 5.13 STORFJORD Bank 76 35'N - 23 00'E 10 STORFJORD Deep 67 15'N - 31 00'W 112 STORFJORD Channel 76 12'N - 19 00'E 10 STORNESET 63 43'N - 4 50'E 101 Continental slope STRADBROKE Seamount 29 05'S - 155 45'E 5.10 60-602 * STRAUSS Seamount 33 18'N - 164 09'W 50-51 * STRAVINSKI Seamount 31 29'N - 164 36'W 50 * and INT charts = STRAVINSKY STREDE Bank 66 50'N - 28 40'W 112 STVOR Guyot 9 53'S - 5 25'W 5.12 * = Seamount(August 1985) GEBCO-SCGN-7 SUB-ANTARCTIC Slope 51 00'S - 177 55'E 600 SUIKO Guyot 44 35'N - 170 20'E 5.06 53 * = Seamount GEBCO-SCGN-6 SUITCASE Seamounts 21 00'N - 112 30'W 802 * SULU Basin 8 00'N - 121 00'E 5.06 507 * SULZBERGER Basin 77 00'S - 152 30'W 5.18 SUNDA Shelf 2 00'N - 106 30'E 5.06 * SUNDA Trench 4 30'S - 100 E to 11 10'S - 119 E 5.09, 5.10 70-71-73-508-603-706-708 * = JAVA Trench GEBCO-SCGN/7 SUNDA Trough 8 30'S - 108 30'E 5.09 * SUN RAY Seamount 0 32'S - 88 33'W 811 * SUR Canyon 36 06'N - 122 04'W 801-802 * SURVEYOR Channel 57 20'N - 145 30'W 5.03 50 * = Seachannel, INT 50 = seachannel SURVEYOR Fracture Zone 43 00'N - 155 00'W to 43 30'N - 150 00'W 50 * SURVEYOR Gap 56 30'N - 144 30'W 5.03 * (December 1983) SURVEYOR Seamount 56 05'N - 144 20'W 50-810 * SVERDRUP Canyon 55 25'S - 65 35'W 200 SVYATAYA ANNA Trough 77 20'N - 70 00'E to 82 30'N - 68 00'E 5.17 * GEBCO-SCGN/7 (Formerly St. ANNA) SWAN Shoal 4 00'S - 54 30'E 702-703 SWATCH OF NO GROUND 21 15'N - 89 28'E 706 * Canyon SWAZI Seamount 48 20'S - 9 30'E 5.16 21 SWORDFISH Seamount 18 25'N - 158 25'W 809 * SYOYO Seamount 22 29'N - 142 59'E 510 SYUN-YO Bank 37 09'N - 132 20'E 511 TADJURA Trough 12 00'N - 44 30'E 705 * TAGUS Basin 37 50'N - 11 40'W 5.08 * (September 1983) GEBCO-SCGN/6 (formerly Abyssal Plain) TAHOMA Canyon 51 45'N - 175 23'E 813 * TAHOMA Reef 51 53'N - 175 50'E 813 TAIWAN Banks 23 00'N - 118 30'E 509 * = FORMOSA Reefs TAKASU Seamount 23 12'N - 141 31'E 510 TAKUYO-DAIITI Seamount 41 16'N - 145 57'E 511 * (March 1985) = DAIICHI TAKUYO-DAINI Seamount 34 17'N - 143 52'E 510 * TAKUYO-DAISAN Seamount 34 13'N - 144 21'E 5.06 510 * (March 1985) TAMAYO Fracture Zone 23 00'N - 108 00'W 5.07 * TAMPEN 61 45'N - 2 00'E 5.01 10 Continental borderland TANADAK Basin 50 45'N - 179 34'W 813 * TANEY Seamounts 36 45'N - 125 20'W 50-51-801 * TANNER Bank 32 42'N - 119 08'W 801-802 * TANNER Basin 32 52'N - 119 40'W 801-802 * TASMAN Abyssal Plain 35 00'S - 155 00'E 5.10 602 * = Plain TASMAN Basin 40 00'S - 155 00'E to 45 00'S - 160 00'E 5.10 60-601 * GEBCO-SCGN/7 TASMAN : See EAST TASMAN Plateau and SOUTH TASMAN Rise TATAR Trough 46 00'N - 140 00'E 511 * TAUPO Bank 33 10'S - 156 10'E 5.10 60-602 * = Tablemount, INT Charts = Seamounts TAURUS Seachannel 47 30'N - 155 00'W to 53 00'N - 154 00'W 5.03 GEBCO-SCGN/6 (formerly Channel) TAUSSIG Seamount 48 30'N - 158 15'W 50 * TCHAIKOVSKY Seamount 29 23'N - 162 05'W 50-51 * TEAHITIA Seamount 17 34'S - 148 49'W 5.11 GEBCO-SCGN/1988 TEHUANTEPEC Fracture Zone 11 00'N - 99 30'W to 15 00'N - 96 00'W 5.07 TEHUANTEPEC Ridge 13 30'N - 98 00'W 51-811 * TEHUELCHE Fracture Zone 55 00'S - 49 00'W to 54 30'S - 44 00'W 5.16 TEMA Reef 11 00'S - 165 50'W 5.10 * TENJI Guyot 49 00'N - 168 35'E 5.02 53-813 * = Seamount, GEBCO-SCGN/6, INT 53 = TENTI, INT 813 = TENCHI TERRA NOVA Canyon 68 40'S - 159 00'E 5.14, 5.18 TERRY Seamount 43 24'N - 139 52'W 50 * THARP Fracture Zone 52 00'S - 142 00'W to 57 45'S - 115 00'W 5.15 * THE GULLY 44 15'N - 59 15'W 13-404 Canyon THE PAPS Seamount 25 55'N - 20 25'W 14-104 Source : UK/DISCOVERY II - 1962, * and INT 104 = PAPP Seamount THE SWATCH 23 16'N - 67 16'E 705 INDUS Canyon THETA Gap 43 45'N - 12 50'W 5.08 * THETIS Bank 24 56'N - 112 36'W 802 * THOMPSON Seamount 46 03'N - 128 35'W 801 * THOMSON : See WYVILLE THOMSON Ridge THOR IVERSEN Bank 73 10'N - 34 00'E 10 THREE KINGS Ridge 32 45'S - 172 30'E to 28 00'S - 173 00'E 5.10 60-600-602-605 * = Rise, INT Charts = Rise THULEAN : See EAST THULEAN Rise and WEST THULEAN Rise THUNDER Knoll 16 27'N - 81 20'W 400-401-402-811 * (November 1986) = Bank THURMOND Knoll 50 51'N - 177 59'E 50-813 * THURSTON Seamount 17 00'N - 155 58'W 809 * TIBURON Basin 29 00'N - 112 50'W 802 * TIKI Basin 13 30'S - 135 30'W 5.11 TIMOR Trough 9 45'S - 127 45'E 5.10 * TINRO Basin 56 30'N - 153 20'E 5.02 512 * TIRU Seamount 20 35'N - 166 57'W 50-809 * TITOV Seamount 0 30'S - 176 00'W 5.10 * GEBCO-SCGN/7 TITTMAN Seamount 45 10'N - 157 45'W 50 * TOBA Guyot 33 15'N - 171 40'E 5.06 * (September 1984) GEBCO-SCGN/6 TOBAGO Basin 12 30'N - 60 30'W 5.08 216-400-402 * TOFINO Bank 35 30'N - 3 55'W 301 * TONGA Ridge 25 30'S - 177 00'W to 21 40'S - 175 30'W 60-61-605 * TONGA Trench 24 30'S - 175 10'W to 16 00'S - 172 10'W 5.10 60-61-605 * TONGUE OF THE OCEAN 24 30'N - 77 30'W 400-401-402-403 * Trough TOPAZE Bank 4 35'S - 56 25'E 702-703 TORRES Seamount 8 31'N - 106 58'W 802-811 * TOWNSEND CROMWELL Seamount 29 50'N - 179 04'E 5.06 * (March 1985) GEBCO-SCGN/6 TRAENA Bank 66 00'N - 10 00'E 5.01, 5.17 10-101 * (December 1985) TRAENA Deep 67 06'N - 9 25'E 101 TRANSKEI Basin 35 00'S - 30 00'E 5.09 70-72-700 * TREGROSSE Reefs 17 40'S - 150 30'E 5.10 * (November 1986) TRES MARIAS Basin 20 50'N - 106 25'W 802 * TRINCOMALEE Canyon 8 30'N - 81 15'E 706 * TRINDADE Seachannel 23 00'S - 32 36'W 5.12 GEBCO-SCGN/6 TRINIDAD Canyon 41 09'N - 124 50'W 801 * TRIPP Seamount 29 37'S - 14 15'E 21-22-204 * TRISTAN DA CUNHA Fracture Zone 38 00'S - 25 00'W to 37 30'S - 13 30'W 5.12 TROMSO Bank 71 40'N - 18 00'E 5.01 10-100 * (October 1986) = TROMSOFLAKET TROPIC Seamount 23 50'N - 20 40'W 5.08 12-14-104 * TRYAL Ridge 31 00'S - 102 45'E 5.12 * TUAMOTU Fracture Zone 12 30'S - 127 00'W 5.11 * TUCKER Seamount 49 50'N - 133 30'W 50-801-810 * TUI Seamount 30 20'S - 173 00'E 60-600-602 * TURPIE Bank 11 25'S - 175 50'E 604 * TUSCALOOSA Seamount 22 02'N - 157 02'W 50-51-809 * TUSIMA Basin 36 30'N - 131 00'E 511 * TYRRHENIAN Basin 39 30'N - 13 00'E 5.05 301-302 * GEBCO-SCGN/7 UDINTSEV Fracture Zone 54 00'S - 150 00'W to 59 00'S - 131 00'W 5.15, 5.18 * ULLOA Knoll 22 35'N - 108 55'W 802 * ULM Plateau 54 50'N - 176 30'E 50-813 * UMNAK Basin 52 35'N - 167 50'W 813 * UMNAK Canyon 53 35'N - 170 45'W to 53 20'N - 169 25'W 5.03 813 * UMNAK Plateau 54 15'N - 170 15'W 5.03 813 * UNALASKA Basin 52 50'N - 166 05'W 813 * UNICORN Bank 34 45'N - 14 30'W 103-104 * = Seamount UNIMAK Seamount 53 40'N - 162 30'W 50-810-813 * UNION Seamount 49 35'N - 132 40'W 5.03 50-801-810 * URDANETA Seamount 9 23'N - 111 09'W 51-802 * URUGUAY Canyon 72 00'S - 39 00'W 5.18 VACQUIER Seamount 42 30'N - 139 59'W 50 * VALDIVIA Bank 25 30'S - 6 00'E 5.12 21-22-203-204 * = Seamount VALDIVIA Fracture 42 15'S - 95 00'W to 41 00'S - 84 30'W 5.11 * VALENCIA Basin 39 20'N - 0 40'E 301 VALENCIA Trough 40 10'N - 2 00'E 5.05 301 * GEBCO-SCGN/7 VALERIE Guyot 41 25'S - 164 15'W 5.10 61 VANCE Seamount 45 30'N - 130 40'W 50-801 * VARIAG Seamount 14 05'S - 106 08'E 5.09 GEBCO-SCGN/7 = subject to confirmation VAVILOV Seamount 46 55'N - 150 30'E 511 VAVILOV Seamount 39 51'N - 12 35'E 301-302 * VEMA Channel 30 30'S - 39 15'W 5.12 20-22-201 * and GEBCO = RIO GRANDE Gap, INT 201 = RIO GRANDE Channel (See also RIO GRANDE Gap) VEMA Fracture Zone 11 00'N - 46 00'W to 10 30'N - 38 30'W 5.08 * (April 1986 = 10 S - 66 30'E) VEMA Gap 23 30'N - 67 00'W 5.08 * VEMA Seamount 31 42'S - 8 21'E 5.12 21-22-204 * VEMA Trench 9 00'S - 67 25'E 5.09 70-71-72-73-702 * VINES Bank 18 50'S - 42 58'E 701 VENEZUELA Basin 14 00'N - 67 00'W 5.08 12-13-400-402 * VENING MEINESZ Seamounts 10 50'S - 101 30'E 5.09 70-71-73-707-708 * VENUS Bank 40 13'N - 25 00'E 302 VERCELLI Seamount 41 00'N - 11 05'E 301-302 VERDI Seamount 32 09'N - 163 31'W 50 * VERNADSKI Fracture Zone 7 15'N - 30 00'W to 7 15'N - 40 00'W 5.08 * GEBCO-SCGN/7 VERYAN Bank 44 15'S - 176 05'E 5.10 * VESTBAKKEN 74 23'N - 16 10'E 10-100 Island slope VESTERIS Seamount 73 30'N - 9 10'W 10-100-113 * (December 1985 = Bank) VICTORIA Fracture Zone 8 00'N - 175 00'E to 2 00'N - 176 30'E 5.06 * (September 1984) GEBCO-SCGN/6 VIKING Bank 60 20'N - 2 30'E 5.01 10 * VITIAZ Fracture Zone 5 30'S - 68 30'E 5.09 * VITIAZ Seamount 13 30'N - 173 30'W 5.07 * VITIAZ Trench 10 20'S - 170 20'E 5.10 60-61-604 * VITIAZ Valley 61 50'N - 176 45'E to 60 45'N - 176 50'E 5.02 GEBCO-SCGN/7 VITORIA Fracture Zone 19 31'S - 34 05'W 20 VITORIA Seamount 20 45'S - 37 45'W 5.12 201-202 INT Charts = Bank VITORIA-TRINDADE Seamounts 20 40'S - 38 00'W to 20 30'S - 30'40'W 5.12 201-202 * (December 1981) GEBCO-SCGN/6 (formerly Ridge) VIZCAINO Canyon 39 35'N - 124 28'W 801 * VOGT Guyot 19 50'N - 149 00'E 5.06 * (December 1983) GEBCO-SCGN/6 VOLADOR Seamount 26 32'N - 168 39'W 50-809 * VOLCAN Bank 9 34'N - 80 23'W 400-402-811 * VON HOCHSTETTER Seamount 34 58'S - 81 10'E 5.09 GEBCO-SCGN/7 VORING Plateau 67 20'N - 3 15'E 5.01, 5.17 10-101 * VORONIN Trough 80 00'N - 86 00'E 5.17 * VYSOKAYA Bank 59 43'S - 27 58'W 5.16 * (August 1985) GEBCO-SCGN/7 WACHUSETT Ridge 49 20'N - 135 30'W 50-810 * WAGNER Seamount 31 46'N - 162 54'W 50-51 * WAIRUNA Shoal 5 12'S - 162 18'W 51-617 WALKER Seamount 55 07'N - 140 20'W 50-810 WALLABY Plateau 22 10'S - 104 40'E 5.09 60-70-71-73-708 * WALLS Plateau 52 15'N - 175 12'E 813 * WALLS Seamount 53 45'N - 156 00'W 5.03 50-810 * and INT Charts = Knoll WALTERS Shoals 33 12'S - 43 50'E 5.09 70-72-700 * and GEBCO = Shoal WALTON Bank 17 32'N - 78 19'W 400-401-402-403-811 * WALVIS Ridge 32 50'S - 1 45'E to 23 30'S - 6 00'E 5.12 21-22-203-204 * WANGANELLA Bank 32 30'S - 167 25'E 602 * WARD Basin 51 04'N - 179 48'E 813 * WARWICK Seamount 48 04'N - 132 48'W 50-801 * WASHINGTON Seamount 18 53'N - 157 58'W 809 * WEBER Basin 5 30'S - 131 00'E 5.10 60-603 * WEDDELL Abyssal Plain 65 30'S - 40 00'W to 64 00'S - 10 00'W 5.16, 5.18 * = Plain (June 1987) WELKER Guyot 55 10'N - 140 20'W 5.03 * = Seamount WEST CAROLINE Basin 3 30'N - 137 30'E 5.06 507 WEST COCOS Seamount 5 30'N - 88 30'W 5.07, 5.08 * WEST EUROPEAN Basin 52 45'N - 28 00'W 102 WESTFALL Seamount 30 15'N - 120 02'W 50-802 * WEST MARIANA Basin 18 00'N - 139 00'E 5.06 52-510 * GEBCO = PARECE VELA Basin WEST MARIANA Ridge 21 30'N - 142 00'E to 14 00'N - 143 00'E 5.06 52-510 * GEBCO = PARECE VELA Basin WEST MELANESIAN Trench 0 45'S - 144 00'E to 1 45'S - 152 30'E 5.10 506-604 * and INT Charts = WEST MELANESIAN, GEBCO = MANUS (See also MANUS Trench) WEST NORFOLK Ridge 32 00'S - 167 00'E to 34 50'S - 169 20'E 5.10 600-602 * Aus.proposal : SOUTH NORFOLK Ridge WEST O'GORMAN Fracture Zone : GEBCO-SCGN/6, See O'GORMAN Fracture Zone WEST SCOTIA Ridge 56 50'S - 56 30'W 5.16 WEST SHEBA Ridge 13 00'N - 49 00'E 5.05 705 * WEST THULEAN Rise 52 15'N - 41 15'W to 52 00'N - 38 50'W 5.04 11-14 * (December 1983) WHALES BAY Deeps 77 50'S - 170 00'W 5.18 * = WHALES BAY Furrows WHARTON Basin 23 00'S - 93 00'E to 14 00'S - 110 00'E 5.09, 5.10 70-71-73-708 GEBCO-SCGN/7 WHITE MARSH Seamount 53 08'N - 143 29'W 50 * WHITNEY Ridge 51 30'N - 140 00'W 50-810 * WIGHT Bank 7 25'S - 71 30'E 70-71-72-73-702-703 WILD Canyon 66 00'S - 67 00'E 5.13, 5.18 WILDE Guyot 21 07'N - 163 30'E 5.06 * (March 1985) GEBCO-SCGN/6 WILDER Seamount 8 17'N - 173 25'W 617 WILKES Fracture Zone 9 00'S - 110 00'W 5.11 * WILKES Rise GEBCO-SCGN/6, See ASQUITH Bank WILKES Seamount 17 10'N - 154 05'W 50-51-809 * WILKINS Canyon 65 00'S - 70 00'E 5.18 WILLIAM'S Seamounts 53 20'S - 81 15'E 5.13 WILSHAW Ridge 16 30'S - 57 15'E to 21 00'S - 53 45'E 5.09 WILSON Canyon 70 35'S - 176 15'E 5.18 WINI Seamount 19 02'N - 153 52'W 50-51-809 * WINSLOW Reef 1 36'S - 174 57'W 5.10 617 * GEBCO-SCGN/7 WISCONSIN Seamount 21 16'N - 165 08'W 50-809 * WOODLARK Basin 10 15'S - 153 45'E 5.10 * WOOD Seamount 17 27'N - 156 05'W 50-51-809 * WOODWORTH Seamount 52 15'N - 149 30'W 50-810 * WORMLEY Seamount 13 45'S - 57 55'E 5.09 71-72 * WRANGEL Abyssal Plain 82 30'N - 170 00'E 5.17 * = Plain WRECKS Reefs 22 10'S - 155 18'E 5.10 WUST Seamount 33 50'S - 3 30'W 5.12 21 * WYANDOT Seamount 37 45'S - 15 40'E 5.12 21-204 * WYER Seamount 54 25'N - 148 40'W 810 * WYOMING Seamount 33 28'N - 56 57'W 11-12-13 * WYVILLE-THOMSON Ridge 60 00'N - 7 15'W 5.04 102 * XAGUA Bank : See JAGUA Bank XAUEN Bank 35 23'N - 4 18'W 301 * XHOSA Seamount 46 50'S - 10 32'E 5.16 21 YAGHAN Basin 56 00'S - 61 30'W 5.16 200 * (June 1987) YAKUTAT Valley 59 30'N - 140 00'W 50-810 * YAMATO Basin 38 10'N - 135 00'E to 39 45'N - 138 00'E 5.06 511 * YAMATO Bank 39 00'N - 134 00'E to 39 35'N - 135 55'E 5.06 511 * and GEBCO = Ridge, INT 511 = Tai or Bank YAMATO Rise 39 00'N - 133 40'E to 40 30'N - 137 00'E 511 * Feature to be checked. Does not appear to be a "Rise" YAMATO Seamount 38 53'N - 135 59'E 511 * (October 1986) YAP Trench 8 30'N - 138 00'E 5.06 507 * YAQUINA Trough 3 00'N - 80 00'W 5.07 * YELCHO Canyon 66 40'S - 48 00'W 5.18 YERMAK Plateau 81 15'N - 5 00'E 5.17 GEBCO-SCGN/7 YUCATAN Basin 20 00'N - 85 00'W 5.08 12-13-400-401-402 * YUNASKA Canyon 53 15'N - 170 50'W 813 * YUPANQUI Basin 20 00'S - 102 00'W 5.11 * YURYAKU Seamount 32 45'N - 171 50'E 53 * YVES ROCARD Seamount 17 39'S - 148 35'W 5.11 GEBCO-SCGN/1988 ZAMBEZI Canyon 20 00'S - 41 30'E 5.09 * ZAPIOLA Ridge 45 00'S - 40 00'W to 45 00'S - 44 00'W 5.12 * ZAPIOLA Seamount 38 10'S - 26 15'W 5.12 21-22 * ZAVADOVSKI Canyon 65 30'S - 87 00'E 5.18 GEBCO = ZAVADOVSKY ZEEWYK Knoll 22 50'S - 101 15'E 5.09 * = Seamount ZELEE Bank 12 30'S - 46 10'E 701-702 * ZENKER Seamount 41 00'S - 6 00'W 5.12 21-22 * GEBCO = ADMIRAL ZENKER ZENKEVICH Rise 42 30'N - 150 00'E to 46 30'N - 157 00'E 5.06 53-511 * = 51 N - 161 E, GEBCO = ZENKEVICH Rise (See also HOKKAIDO Rise) INT Charts = HOKKAIDO Rise ZEPHIR Shoal 15 52'S - 176 42'W 5.10 * = Reef ZHEMCHUG Canyon 57 15'N - 175 45'W to 58 45'N - 175 15'W 5.03 813 * GEBCO-SCGN/7 ZHEMCHUG Spur 57 10'N - 176 00'W to 58 30'N - 175 15'W 5.03 GEBCO-SCGN/7 ZINGU Seamount 38 45'N - 171 15'E 53 ZINMU Seamount 46 00'N - 169 25'E 53 ZOROASTER Shoal 5 00'S - 56 40'E 702-703 ZUBOV Seamount 15 42'N - 160 00'E 5.06 * GEBCO-SCGN/7 ZULU Seamount 47 45'S - 10 00'E 5.16 21