Following is a description of the format for the NGDC catalogs: Tape Position Field Comments 1-3 Data source Source from which all or most of the data were obtained 4 B.C. data indicator Minus sign indicates pre-Christian era. 4-12 Date (Universal Positions 4-8 year, 9-10 month, and 11-12 day Time--UT) 13-19 Origin Time Computed, or observed if controlled explosion (Universal Time --UT) with shot timed. Positions 13-14 hour, 15-16 minute, and 17-19 second. Implied decimal between positions 18 and 19. 20-24 Geographic latitude Usually given to three decimal places, (decimal degrees) although this degree of accuracy is not necessarily applicable. Implied decimal between positions 21 and 22. 25 N/S North or south latitude 26-31 Geographic longitude Usually given to three decimal places. (decimal degrees) Implied decimal between positions 28 and 29. 32 E/W East or West longitude 33-35 Focal depth (km) See also position 68. 36-38 Body-wave (Mb) average Implied decimal between positions 36 and 37. value Value as determined by *PDE program. 39-40 MB If magnitude in 36-38 is given. 41-43 Isoseismal map, Three-letter abbreviation indicating the fault plane solution, publication of an isoseismal (intensity) map. or both USE, United States Earthquakes; *PDE. Preliminary Determination of Epicenters; WEL, New Zealand Seismologoy Report, Wellington, N.Z.; BSS, Bulleting of the Seismological Society of America; ZUR, Zurich, Switzerland; NTR, Nature Magazine. FPS indicates a fault- plane solution was computed. BOT means that both a fault plane solution and an isoseismal map were produced by U.S. Geological Survey. 44 Maximum intensity Modified Mercalli Scale or converted to MM Scale. 1-9 = I-IX, X = X, E= XI, T=XII. See Appendix 5. 45-50 Associated Phenomena 45 Diastrophism code F = Surface faulting U = Uplift/subsidence D = Faulting and uplift/subsidence. 46 Tsunami code T = Tsunami generated Q = Possible Tsunami 47 Seiche code S = Seiche Q = Possible Seiche 48 Volcanism Code V = Earthquake associated with volcanism 49 Nontectonic code R = Rockburst C = Coal bump or rockburst in coal mine. M = Meteoritic source. E = Explosion -- accidental, controlled or suspected I = Collapse L = Lights or other such visual phenomena seen. 50 Waves generated code T = T-wave A = Acoustic Wave. G = Gravity wave. B = Both A and G. 51-53 Flinn-Engdahl geo- As described by Flinn and others (1974) graphic region no. See appendix 6. 54-55 Surface wave (Ms) Implied decimal between positions 54 and 55. average value Value determined by PDE program. (IASPEI for- mula used). 56-57 MS If magnitude in 54-55 is given. 58 Component Z or H Z = Ms computed from long-period vertical component H = Ms computed from long-period horizontal component. 59 Cultural Effects C, D, F or H in position 59 indicates reported casualties, damage, felt information or earthquake heard, respectively. The nota- tions listed here provide a brief summary of the earthquake effects on populations and buildings. Casualty, damage, or felt reports associated with a particular earthquake do not imply that the effects were noted at the epi- central position. Especially with offshore earthquakes, the maximum intensity may be reported at some distance from the source of the shock. An "F" in this position (felt but no damage reported) having no accompanying intensity (position 44) is likely associated with an intensity of I - III on the Modified Mercalli Scale; however, tha actual intensity may be higher. 60 Unusual Events L = Liquefaction. G = Geyser/fumerol S = Landsliding, avalanche. B = Sand Blows C = Ground cracking, not associated with faulting. V = Visual phenomena or lights. O = Olfactory phenomena. M = More than one of the above. 61-63 Other Magnitude Value obtained from several sources; unspecified magnitude type but generally Ms (implied decimal between positions 61 and 62). Fractions have been converted to decimal num- bers, or encoded as follows: 6 - 6 1/4 = 6.13 6 1/4 = 6.25 6 1/4 - 6 1/2 = 6.38 6 1/2 = 6.50 6 1/2 - 6 3/4 = 6.63 6 3/4 = 6.75 6 3/4 - 7 = 6.88 For any other range, median values are listed 64-66 Authority for magni- See source codes in appendix 4. tude in positions 61-63 67 Special event X = International Date Exchange (IDE) designator earthquake 68 Depth control A = Assigned Designator D = Restrained depth based on 2 or more reported pP's identified as such. G = Depth restrained by Geophysicist N = Held at 33 km (Normal Depth) where data not sensitive to depth for a shallow- focus. S = Depth control aided by use of S-phase data * = Less well-constrained free-depth solution; 90% confidence it lies within 8.5 and 16 km (used since January 1985) ? = Poorly constrained free depth solution (used since January 1985) 69-71 Number of stations/ Number of P and/or P' arrivals used in hypo= Quality Indicators center solution. Quality Indicators are as listed below: Source Style and Indicators G-R (Gutenberg- 3-letter com- Probable limits of error Richter, 1954) bination ____________________________________________ Epicenter Origin Time Depth (o) (s) (km) A = Very accurate 1 5 30 B = Good 2 8 50 C = Fair 3 12 80 D = Poor 3 12 80 ____________________________________________ MOS (Moscow) 2-letter or A = Best Accuracy (epicenter/depth). letter/symbol com- B = Very Good. bination in posi- N = Good tions 69 and 71 V = Fair * = Poor PAS (Pasadena) Single-letter A = Specially investigated. designator B = Epicenter probably within 5 km, in position 69 Origin time to nearest second. C = Epicenter probably within 15 km, Origin time ot a few seconds. D = Epicenter not known within 15 km, rough location. BRK (Berkeley) Single-letter A = Accurate epicenter WEL(Wellington, desigator B = Good N.Z) in position 70 C = Fair D = Poor _____________________________________________________________________________ Source Style and Indicators USN (Algermissen; Single-letter designator in position 69, letters follow: see Hays and others, 1975) A - Instrumental epicenter assumed correct to 0.1 degree. STA (Algermis- B - Instrumental epicenter assumed correct from 0.1 to 0.2 de. missen, 1969) C - Instrumental epicnter assumed correct from 0.2 to 0.5 de. and STO D - Instrumental Epicenter assumed correct from 0.5 to 1.0 de. (Stover and E - Instrumental epicenter assumed correct to 1.0 degrees. others, 1984) F - Epicenter from felt data assumed correct to 0.5 degrees G - Epicenter from felt data assumed correct from 0.5 to 1.0 de. H - Epicenter from felt data assumed correct from 1.0 to 2.0 de. I - Epicenter from felt data assumed correct to 2.0 degrees. _____________________________________________________________________________ For Quick epicenter determinations, the quality is poor and the quality factor is identified with the reporting agency as follows: Agency Location Quality Code SED (QSE) Swiss Seismological Service s YKA (QYK) Yellowknife Array, Canada y MAD (QMA) I.G.N., Madrid Spain m GER (QGE) GERESS Array, Germany g NOR (QNO) NORSAR Array, Germany n ING (QIN) I. N. G., Rome, Italy i ZUR (QZU) Zurich Seismological Center, Switzerland z IDC (QID) GSE-IDC, Washington d PDE (QED) NEIS -Quick Epicenter Determination # of Stations PDE (WED) NEIS - Weekly Epicenter Reports # of Stations 72 Authority for time and Blank = Authority same as source (positions coordinates/other 1-3) quality indicators A = Parameters of explosion supplied by U.S. Atomic Energy Commission (AEC)/Energy Research and Development Administration (ERDA)/Department of Energy (DOE). B = Parameters of epicenter supplied by University of California, Berkeley C = Paramters of epicenter supplied by Commission de Energie Atomique, Paris, France. D = Parameters and epicenters supplied by the Alaskan Branch, U.S. Geological Survey. E = Some of all parameters of explosion (Controlled or accidental) supplied by any group or individual other than AEC/ERDA/DOE. F = Parameters of epicenter supplied by Geotech/ University of Michigan. G = Parameters of epicenter supplied by the U.S. Geological Survey--NEIS for any area other than Hawaii or Alaska. H = Paramters of epicenter supplied by the USGS Hawaii Volcano Observatory. I = Parameters of epicenter supplied by the Tennessee Earthquake Information Center, Memphis, Tennessee. J = Parameters of the epicenter supplied by St. Louis University. L = Parameters of epicenter supplied by LaMont-Doherty Geological Observatory, Palisades, NY. M = Hypocenter based on microseismic information. N = Parameters of epicenter supplied by North- Eastern Seismological Association, Weston MASS. O = Parameters of epicenter supplied by Earth Physics Branch, Ottawa, Ontario, or Pacific Geoscience Center, Sydney, British Columbia (Energy, Mines and Resources, Canada) P = Parameters of epicenter supplied by California Institute of Technology, Pasadena. Q = University of South Carolina. R = Parameters of epicenter supplied by University of Nevada, Rena. S = A USGS solution based on use of dense local networks, a local crustal model, or other methods not routinely applied by USGS. T = Parameters supplied by Georgia Institute of Technology, Atlanta U = Parameters of epicneter supplied by University of Utah, Salt Lake City. V = Parameters of epicneter supplied by Virginia Polytechnic Institute and State University, Blacksburg, VA. W = Parameters of epicenter supplied by University of Washington, Seattle. X = No time reported Y = Parameters of epicenter supplied by Oklahoma Geological survey (Leonard, (Tulsa)/ Z = Noninstrumental - = Less reliable * = Assigned to solutions for which poor azi- muth, depth control and other factors contribute to a less reliable source. % = Single network solution.. ? = Poor Solution. 73-75 Local Magnitude Implied decimal between positions 73 and 74. 76-77 Magnitude scale used If magnitude in 73-75 is given. Generally ML; USGS will use MB. ML = Local magnitude MB = Body-wave magnitude CL = Coda-length magnitude MS = Surface-wave magnitude DR = Duration Magnitude NU = Nuttli Magnitude MW = Moment magnitude (Abe, 1983, 1984) MR = Rautian magnitude (Kondorskaya and Shebalin, 1982) LH = Magnitude Mlh (Kondorskaya and Shebalin 1982) LG = Lg body-wave magnitude (Nuttli, 1973) SL = Magnitude from Stover and others , 1984 SH = Magnitude from Stover and others, 1984 SA = Magnitude from Stover and others, 1984 SU = Magnitude of unknown origin from Stover and others, 1984 K = Russian Energy class magnitude MC = Reported magnitude of unknown origin MG = Reported magnitude of unknown origin 78-80 Authority for value in See codes for Data sources in Appendix 4. 73-75. Appendix IV: AAA Alma-Ata, USSR AAB Alma-Ata, USSR AAC Aachen, Germany AAM Ann Arbor, Michigan, USA ABA Alger-Bouzareah, Algeria ADE Adelaide, Australia ADH Angra do Heroismo, Azores. ADK Adak, Alaska AEIC Alaska Earthquake information Center, Anchorage, Alaska AFI Afiamalu, Western Samoa. AGI Augustine Is., Alaska, USA AGR Alvares, Godzikovskaya, Rautian, 1983, Research of Seismicity (Cuba) AGS Alaska Seismic Studies, USGS-NCER, Menlo Park, CA, USA AKU Akureyri, Iceland ALG Algiers University, Algeria. ALI Alicante, Spain ALM Almeria, Spain. ALP Ascoli Pisceno, Italy ALQ Alberquerque, New Mexico, USA ANK Ankara, Turkey ANT Antofagasta, Chile. APA Apatity, USSR API Apia, Samoa APT Avery Point, CT, USA AQU Aquila, Italy ARD Arida, Wakayama ARE Arequipa, Peru. ARO Arta Obs, Djibouti ASIES Academia Sinica, Institute of Earth Sciences, Taipei, Taiwan, R.O.C. ASP Alice Springs, Northern Territory, Australia ASPA Alice Springs, Northern Territory, Australia ATH Athens Observatory, Greece. ATL Atlanta, Georgia USA. ATU Athens University, Greece AUST Bureau of Mineral Resources, Canberra, Australia. AVE Averroes, Morocco BAA Buenos Aires, Argentina BAK Baku, USSR BAL Ballidu, Western Australia BAR Barstow and others (1981) BAS Basel, Switzerland BCI Bureau Central International de Seismologie, Strasbourg, France. BDA M. Bath and S. Duda (1979) BDV Budva, Yugoslavia BEO Belgrade, Yugoslavia. BER Bergen, Norway. BERK Berkheimer H. BFD Bellfield, Victoria, Australia BGG Burgeitz, Rheinland BGS British Geological Survey, Edinburgh, U.K. BHL Bhannes, Lebanon BHP Balboa Heights, Panama BJA Jaww, Bahrain BJI Beijing, China BKK Bangkok, Thailand. BKS Byerly, California, USA BLA Blacksburg, Virginia, USA BLY Banja Luka, Yugoslavia BMO Blue Mountains, USA BNS Bensberg, Germany. BMU Muharraq, Bahrain BOG Bogota, Colombia. BOM Bombay, India BOZ Bozeman, Montana, USA BRA Bratislava, Slovakia. BRG Berggiesshubel, GDR BRK Berkeley, Haviland, California, USA. BRL Berlin University, Berlin. BRS Brisbane, Australia. BRT Bari-Castellana, Italy BRY Bratagost, Yugoslavia BSS Bulletin of the Seismological society of America BUC Bucharest, Romania. BUD Hungarian Seismological Institute, Budapest, Hungary. BUL Bulawayo, Zimbabwe. BUT Butte, Montana, USA CAM Cambridge, Massachusetts CAN ANU, Canberra, Australian Capitol Terriroty, Australia. CAR Caracas, Venezuela. CCN Central California network (See US Geological Survey 1969-77) CEA Ceahlau, Roumania CER CERESIS, Catalog of Earthquakes for South America , 1985 CFR Charles F. Richter (Richter, 1958) CGS U.S. Coast and Geodetic Survey, Rockville, MD, USA CHC Chapel Hill, NC, USA CHG Chiang Mai, Thailand CHH Chihuahua, Mexico CHM Chimkent, USSR CHR Christchurch, New Zealand CHU Chur, Switzerland CLL Collm Berg, Germany. CMS Cobar, New South Wales, Australia CNB Canberra, Australia (alternative to CAN) CNG Changalane, Mozambique. CNH Changchun, China COI Coimbra, Portugal COL College Outpost, Alaska, USA COM Comitan, Mexico CON Concepcion, Chile COO Cooney (Armidale), New South Wales) COP Copenhagen, Denmark CPO Cumberland Plateau, USA CRA Chernovtsy, Ukraine, USSR CRM Caravelle, Martinique CRT Cartuja, Spain CSC Columbia, South Carolina, USA CSEM Centre Seismologique Europeo-Mediterraneen, Strasbourg. CSM Casamicciolo (isola d'Ischia), Italy CSS Cyprus, Cyprus CTA Charters Towers, Australia CTI Castel Tesino, Italy CVF Calvi, Corsica, France CWF Charnwood, UK DASA (USAEC) DAV Davison, Charles, A History of British Earthquakes Cambridge, 1924 DBN de Bilt, Netherlands DEW Dewey, J.W. and Gordon, D.W. (1983, unpublished data) DIAS Dublin Institute for Advanced Studies, Ireland DJA Djakarta, Java,Indonesia. DKM Kilmashogue, Ireland DLE Lyons Estate, Ireland DMG California Division of Mines and Geology (Real and others, 1978) DMU Kingscourt, Ireland DNA Decade of North American Geology (DNAG project) DNG Decade of North American Geology (DNAG project) DOR Dorot, Israel DOU Dourbes, Belgium DUI Duronia, Italy DUR Durham,England. DWR Dpoartment of water resources, CA., USA EBM Esen Boulak, Mongolia EBR Ebro Roquetas, Spain ECP Carnsore Pt, Ireland ECX Ensenada, Baja, California EDI Edinburgh, Scotland, UK. EDU Dundee, Scotland, UK EKA Eskdalemuir Array Station, UKAEA, UK. ELO Logie Almond, Scotland, UK EPB Earth Physics Branck; Energy, Mines and resources, Ottawa, Canada EQH Earthquake history of the United States (Coffman and others 1982) EQN Earthquake notes (later Earthquake Research letters) ERC Erice, Sicily ERDA Energy Research and Development Administration, USA. ERE E. R. Engdahl ERI Earthquake Research Institute, Tokyo, Honshu, Japan ERL Environmental Research Laboratories, Boulder CO, USA ESK Eskdalemuir, Scotland, U.K. EUR Eureka, Nevada, USA EXC Excelsior, Nevada, USA FBR Fabra, Spain FDF Fort de France, Martinique FEN Fennoscandia (Bath, 1956 and Panasenko, 1977) FIR Firenze Ximeniano (Florence) , Italy FKK Fukuoka, Japan FOR Fordham, New York, USA FOU Fouillouse, France FRG Federal Republic of Germany FRU Frunze, USSR FUN FUNVISIS, Venezuela FUR Furstenfeldbruck, Germany. GB G. Bollinger (1979) GBA Guaribidanur Array, India. GCG Guatemala City, Guatemala GEN Genoa, Italy GIA Geophysical Institute, University of Alaska, Fairbanks, USA GIB Gilbilmanna, Italy GIL Gilmore Creek, AK, USA GLD Golden, Colorado, USA GOL Golden, (Bergen Park) Colorado, USA GOU Gouin, Pierre, Earthquake History of Ethiopic and horn of Africa (1979) GRA Graz, Austria GRC Garchy, France GRF Grafenberg Array, (Erlangen) Germany GRO Groznyy, USSR G-R Gutenberg and Richter, 'Seismicity of the Earth' GUS Gusev, Kamchatka catalog, Petropavlosk-Kamchatsky, Russia, 683006 GZH Guangzhou, Guangdong HAM Hamburg, Germany HAN Hanover, Germany. HCG Craig Goch, Wales, UK. HCY Herceg Novi, Yugoslavia HDC Heredia, Cost Rica HEL Helsingfors, Helsinki, Finland. HFS Hagfors, Sweden. HFS1 Hagfors, Sweden HFS2 Hagfors, Sweden HIG Hawall Institute of Geophysics, HI, USA HKC Hong Kong. HLE Halle, Germany HLW Helwan, Egypt HNR Honiara, Solomon Islands. HON Honolulu, Hawaii HOR Horta, Azores. HRB Hurbanovo, (Ogyalla, Stara Dala) Slovakia HRV Harvard, Massachusetts, USA HRV Harvard University, Massachusetts, USA HTL Hartland, England. HVO Hawaiian Volcano HYD Hyderabad, India IBK Innsbruck, Austria IFR Ifrane, Morocco IGS Institute of Geological Sciences, UK. INC Inchon, South Korea IPR Institute for Petroleum Research and Geophysics, Israel. IRK Irkutsk, USSR. ISC International Seismological Centre, Newbury, UK ISK Istanbul Kandilli, Turkey. ISS International Seismological Summary, UK IST Technical University Istanbul, Turkey. IVA Ivangrad, Yugoslavia JEN Jena, Germany. JER Jerusalem, Israel. JMA Japan Meteorological Agency, Japan. JOH Johannesburg, South Africa. JSA Jesuit Seismological Association, St. Louis, USA JSO Jordan Seismological Observatory, Jordan KAI Kaimata, New Zealand KAR Karachi, Pakistan KBA Barrage Koelnbrien, Austria KBC Kumba, Cameroon KBL Kabul, Afghanistan. KBN Korca, Albania KDC Kodiak, AK, USA KEV Kevo, Finland KEW Kew, UK. KGS Kansas Geological Survey, Kansas KIM Kimberley, South Africa KIP Kipapa Oahu, KIR Kiruna, Sweden KHC Kasperske Hory, Czechoslovakia. KHO Khorog, Tadzhikistan KIR Kiruna, Sweden KLB Kellerberin, Australia KLG Kalgoorlie, Australia KLL Kalltalsperre, Germany KLM Kuala Lumpur, Malaysia. KMI Kunming, Yunnan, China KNT Kendrikon, Greece KOB Kobe, Japan KOC Kochi, Japan KOE Koppel, Rheinland-Pfalz, Germany. KRA Kracow, Poland KRK V. Karnik (see Karnik, 1969, 1971) KRL Karlsruhe, Germany. KSA Ksara, Lebanon. KUK Accra, Ghana. LAK Kansas Geological Survey, University of Kansas, Lawrence LAO Large Aperture Seismic Array (LASA) , Montana, USA. LAT Lae, Papua New Guinea LCI Lecce, Italy LDG Laboratoire de detection et de geophysique, France. LDO Lamont-Doherty Observatory, Palisades, New York, USA. LDS Lamont-Doherty Observatory, (New York State Net)Palisades, New York, USA. LED Leeds, Catalog of Nicaraguan Earthquakes, 1974, 1520 - 1974 LEE W.H.K. Lee (Lee and others 1976, 1978) LEM Lembang, Java, Indonesia LGO Shumagin Islands, Lamont-Doherty Geological Observatory LIM Lima, Peru LIS Lisbon, Portugal. LJU Ljubljana, Slovenia . LPA La Plata, Argentina LPB La Paz, Bolivia LPZ San Calixto, Bolivia LRA Little Rock, Arkansas, USA LSZ Lusaka, Zambia LVV Lvov, Ukraine LWI Lwiro, Zaire MAL Malaga, Spain MAK Makchachkala, USSR MAN Quezon City, Manila (Dillman) , Phillipines. MAL Malaga , Spain MAT Matsushiro, Honshu, Japan MBM Montana Bureau of Mines, Billings, Montana MCQ Macquarie Island, Australia MDD Madrid, Spain. MEK Meekatharra, Western Australia MER Merida, Yucatan, Mexico MES Messina, Italy MGG Marie-Galante, Guadeloupe MHI Mashhad, Iran MIR Mirny, USSR MKY Makeyevka, Ukraine, USSR MLG Mont-d'or, Guadeloupe MNH Munich, Germany. MNS Mont'Asola, Italy MMS Matam, Senegal MOF Molkenrain, Alsace MOS Moscow, USSR. MOX Moxa, Germany. MRWA Morawa, Australia MSI Messina, Italy. MSO Missoula, Montana, USA MSSP Micro Seismic Studies Program, Pakistan MTE Manteigas, Portugal MTH Montachique, Portugal MTJ Mount Tsukuba, Japan MUN Mundaring, Australia. NAG Nagoya, Japan NAN Nanjing, China NAO NORSAR, Norway. NAU Nanutarra, Australia NB2 NORSAR, Norway NCE National Center for Earthquake Research, (NCEER) Menlo Park CA, USA NDI Delhi, India. NED Newark, Delaware NEI National Earthquake Information Centre, Golden, Co., USA. NEN Northeastern Seismologcial Association, Weston MASS, USA NES National Earthquake Information Centre, Golden, Co., USA. NEU Neuchatel, Switzerland NEW Newport,Washington. NGN Nagaro, Honshu, Japan NHA Nha Trang, Vietnam NMI New Mexico Inst. of Mining and Technology, Socorro, NM, USA NOS National Ocean Survey, Rockvill MD, USA NOU Noumea, New Caledonia. NOV Novara, Sicily, Italy NRR North Reno, NV, USA NUR Nurmijarvi, Finland NWAO Narrogin (SRO), Western Australia OAX Oaxaca, Mexico OBM Ulan-Bator, Mongolia ORI Oriolo Calabro, Italy ORO Oropa, Italy OSA Osaka, Japan OTT Ottawa, Canada. OWN O. W. Nuttli (Reviews in Engineering Geology, GSA, pp 67 - 93) OXD Oxford, England, UK PAA Panguna, Bouganville PAG Le Parnasse, Guadeloupe PAL Palisades, New York, USA PAS Pasadena, California, USA. PAV Pavia, Italy PDA Ponta Delgada, Azores PDE Preliminary Determination of Epicentres from NEIS/CGS PEK Peking, (Chiufeng) China. PET Petropavlovsk, USSR PGC Pacific Geoscience Centre, Sydney, British Columbia, Canada PHP Peshkopia, Albania PIT Pittsburgh, Pennsylvania, USA PLE Pljerlja, Yugoslavia PMG Port Moresby, Papua New Guinea PMR Palmer, Alaska, USA PNG Peng-hu, Taiwan, China POO Poona, India PPT Papeete, French Polynesia. PRA Praha, (Prague), Czechoslovakia PRE Pretoria, South Africa. PRL Portalegre, Portugal PRO Pesaro, Italy PRT Prato Toscana, Italy PRU Pruhonice, Czechoslovakia. PTJ Puntijarka, Yugoslavia PTO Porto, Portugal. PUL Pulkovo, USSR PUS Pusan, South Korea PVY Plav, Yugoslavia PWG Pacific Geoscience Centre, Canada PYA Pyatigorsk, USSR QCP Manila Observatory, Phillipines. QDM Queensland Department of Mines, Australia QIS Mount Isa, Queensland, Australia QED Quick Preliminary Determinations of Epicenters-NEIS (subject to change) QSE Quick Determination: SED Swiss Seismological Service (subject to change) QMA Quick Determination: MAD I.G.N Madrid, Spain (subject to change) QIN Quick Determination: ING I.N.G. Rome, Italy (subject to change) QYK Quick Determination: YKA Yellowknife Array Canada (subject to change) QNO Quick Determination: NOR NORSAR Array, Norway (subject to change) QGE Quick Determination: GER GERESS Array, Germany (subject to change) QID Quick Determination: IDC GSE-IDC, Washington (subject to change) QZU Quick Determination: ZUR Zurich , Switzerland (subject to change) QUE Quetta, Pakistan. RAB Rabaul, Papua New Guinea. RAC Raciborz, Poland RBA Rabat, Morrocco. RDP Rocca di Papa, Italy REN Reno, Nevada, USA. REP Repetti, W.C. Catalogue of Earthquakes Felt in Guam 1825-1938, BSSA 1939 RES Resolute, Canada RESMACRed Sismica Mexicana de Apertura Continental, Mexico. REY Reykjavik, Iceland. RIV Riverview, Australia RMN Mt. Ramon, Israel RMP Rome, (Monte Porzio Catone), Italy RMQ Roma, Queensland, Australia RO Rogers and Malkiel (1979) ROC Rochester, New York, USA. ROM Rome, Italy. ROT Rothe, J.P. ,The Seismicity of the Earth, 1953-1965, UNESCO, 1969 RSN Red Sismological Nacional (RSN), ICE-UCR San Jose Costa Rica SAF Zefat, Israel SAL Salo, Italy SAN Santiago, Chile SAR Sarajevo, Yugoslavia. SCA South Central Alaska SCB San Calixto, Bolivia SCP State College, Pennsylvania, USA SDA Shkroda, Albania SDD Santo Domingo, Dominican Republic SEA Seattle, Washington, USA SET Setif, Algeria. SFS San Fernando, Spain SGO Sicignano, Italy SHI Shiraz, Iran SHL Shillong, India. SJG San Juan, Puerto Rico SJP San Juan, Puerto Rico SJR San Jose, Costa Rica SJS Instituto Costarricense de Electricidad, Costa Rica. SKL Novoaleksandrovsk, Sakhalin, USSR. SKO Skopje, Yugoslavia. SIG Catalog of Significant Earthquakes (Dunbar, Lockridge, Whiteside, 1993) SLC Salt Lake City, Utah, USA SLM Saint Louis, Missouri, USA. SMI Smithsonian Institution, Massachusetts, USA. SNM Socorro, New Mexico, USA SOC Sochi, USSR SOD Sodankayla, Finland SOF Sofia, Bulgaria. SPC Skalnate-Pleso, Czechoslovakia SPGM Morocco. SPK Scotts Peak, Tasmania, Australia SRI Sefid Roud, Iran SRN Sarande, Albania SRA Seismicity of the United States 1568 - 1989 (1993), Stover &Coffman SRO Srobarova, Czechoslovakia SSO Sasso d'Italia, Italy SSR USSR Catalog (see Kondorskaya and Shebalin, 1982) SSS San Salvador, El Salvador. ST Street and Turcotte (1977) STA S.T. Algermissen (see Algermissen and others, 1969) STB Steinbach, Nordrhein-Westfalen STK Stockholm, Sweden. STL Santa Lucia, Chile STO Stover and others (1984) STR Strasbourg, France. STU Stuttgart, Germany. SUC Sucre, Bolivia SUS Susaki, Japan SVE Sverdlovsk, USSR SYK Sykes L.R., Earthquake Catalogue. (1963, 1965, 1966) T-A S. D. Townley and M. W. Allen (1939) TAB Tabriz, Iran. TAC Tacubaya, Mexico. TAG James Taggart and Frank Baldwin (1982) TAI Seismological Bulletin, Central Weather Bureau, Taiwan TAP T'aipei, Taiwan. TAS Tashkent, USSR TAU Tasmania, Australia. TEH Teheran, Iran TEI Tennessee Earthquake Information Centre, Tennessee, USA TFO Tonto Forest, USA TGG James Taggert (1982, unpublished data) THE Thessaloniki, Greece TIF Tiflis, Georgia, USSR. TIO Tiouime, Morocco TIR Tirana, Albania. TOC Tockial, India TOK Tokyo, Japan TOL Toledo, Spain TOO Toolangi, Victoria, Australia. TRI Trieste, (Grotta Gigante), Italy TRN Trinidad. Trinidad-Tobago TTG Titograd, Yugoslavia TUA Tuai, New Zealand TUC Tucson, Arizona, USA TUL Tulsa, Oklahoma, Oklahoma Geophysical Observatory, U. of Oklahoma, USA. TUN Tunis, Tunisia. UBO Uinta Basin, Utah, USA UBC University of British Columbia, Vancouver, British Columbia, Canada UCC Uccle, Belgium. UGL Uglegorsk, USSR ULC Ulcinj, Yugoslavia UNK Unknown source UPA University of Panama, Panama UPP Uppsala, Sweden. AEC United States Atomic Energy Commission. CGS United States Coast and Geodetic Survey. GS United States Geological Survey, Denver, Colorado USN US Network Catalog (Hays and others, 1975) USE United States Earthquakes (Publication, 1935 - 1985) UU University of Utah (see Arabasz and others, 1979) UVC Universidad de Valle, Cali, Colombia UZH Uzhgorod, USSR VAY Valandovo, Yugoslavia VIC Victoria, British Columbia, Canada VIE Vienna, (Wien-Hohewarte), Austria. VIK Vikulin and Kim, Kuril-Kamchatka Earthquakes data of observations, 1983 VKA Vienna-Kobenzl, Austria. VLA Vladivostok, USSR VLO Vlora,Albania VOY Vojsko, Yugoslavia VSI VOLNET, University of Athens/British Geological Survey network WAR Warsaw, Poland. WDS W. D. Smith, 1976 WED Weekly Preliminary Determination of Epicenters - NEIS, USA (may change) WEL Wellington, North Island, New Zealand. WER Werombi, New South Wales WES Weston Observatory, Boston College, Boston, Massachusetts, USA WMO Wichita Mountains, Oklahoma, USA X Special source ... see comments YAL Yalta, Crimea, USSR YSS Yuzhno-Sakhalinsk , USSR ZAG Zagreb, Yugoslavia. ZKW Zi-Ka-Wei, China ZMT Hungarian Earthquake Catalog (456-1986) (Zsiros, Monus and Toth) ZSC Sheshan, China ZST Bratislava, Czechoslovakia ZUL Zurich--Lageren, Switzerland. ZUR Zurich, Switzerland.