Copyright Information: All images are in the public domain and available for free. If you use this image, credit NOAA/NGDC, Commander Dennis J. Sigrist, International Tsunami Information Center. |
A large 70-m long barge was moved 75 m from the harbor by the flooding tsunami waves. The crane on the barge is used to lift concrete units from the nearby fabricating area to breakwaters and protective bulkheads surrounding the harbor area. Image Credit: Commander Dennis J. Sigrist. International Tsunami Information Center July 12, 1993 Hokkaido Japan earthquake and tsunami On July 12, 1993, a magnitude 7.6 Ms (7.7 Mw) (HRV) earthquake at 13:17 UT in the Sea of Japan near Hokkaido caused a back-arc tsunami that caused damage in all of the countries bordering the Sea of Japan. The earthquake had a rupture length of 150 kilometers, a movement of 2.5 meters and a dip to the east of 24 degrees. The tsunami was 32 meters high on Okishuri, Island, where the most destruction occurred. The whole island subsided by 5-80 centimeters. Event Data:
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