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. |
Revealing a tsunami wave travel time of twenty minutes, this clock was found half buried in sand with other debris deposited by the tsunami at Aonae. Note that the small reinforced concrete building in the background survived the damaging tsunami waves. 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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