When the earthquake of the Island Of Hokkaido, Japan (1730) 137,000 people died. The magnitude of the earthquake was 7.3. The main thing about this earthquake is that it occurred along a subduction zone- witch means that one of the earths surface plates goes under another- Unlike the San Andreas Fault in Southern California, where one plate slides along the other. Subduction Faults are prone to hold more energy then release it in a sharp vertical motion of one plate. One plate was pushed up 8 feet along an area of 93 miles long and 31 miles wide. This vertical motion of the seabed that the earthquake had made also caused a Tsunami.
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