1933 Sanriku earthquake

Earthquake
title=1933 Sanriku earthquake
date= March 2 1933


magnitude = 8.4 M_w
depth=
location=
countries affected = flag|Japan flag|United States
tsunami = Yes
casualties = at least 3000 dead The 1933 Sanriku earthquake occurred on March 2, 1933 off the coast of Sanriku, in the Tōhoku region of Honshu, Japan. The earthquake measured 8.4 on the moment magnitude scale.cite web |url=http://earthquake.usgs.gov/regional/world/events/1933_03_02.php |title=Historical Earthquakes:The 1933 Sanriku earthquake |accessdate=2008-07-16 |work= |publisher=United States Geological Survey |date=14 March 2008] The initial shockwaves did not cause much damage, but the associated tsunami, which reached heights of 28.7 meters (94 feet), destroyed many homes. [The Great Meiji Sanriku tsunami of 1896 is estimated to have generated a wave 38.2 meters high ( [http://shippai.jst.go.jp/en/Detail?fn=2&id=CA1000616 Masayuki Nakao, "The Great Meiji Sanriku Tsunami"] ]

Geography

The earthquake was located 290 kilometers (180 miles) off the coast of Sankiru. Far enough away from the town that the earthquake did little damage. 3 hours after the main shock was a magnitude 6.8 aftershock as well as 76 other aftershocks. [ [http://www.hp1039.jishin.go.jp/eqchreng/4-2-1.htm title ] ]

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The tsunami caused by the earthquake caused most of the casualties, however the earthquake did some damage. It has been estimated that the tsunami reach heights of 94 feet as it approached the coastline. The tsunami destroyed over 5,000 homes, of which over 3,000 were washed away. In Hawaii, the associated tsunami of 9.5 ft resulted in slight damage.

References