A Major Earthquake Centered 130 Km Northeast Of Japan 's Honshu Island

1333 Words Feb 19th, 2016 6 Pages
2
Introduction
A major earthquake centered 130 km northeast of Japan’s Honshu Island, which is the nation’s largest and greatest popular component on March 11, 2011. The earthquake produced a 15 meter tsunami that struck coastal areas causing massive damage. The tsunami inundated 560 square km which resulted in a human death toll of over 19,000, with that being said, it also caused excessive damage to coastal ports and towns, with over a million buildings that were destroyed (Dodchuk, 2011). Among the coastal towns affected by the tsunami was Fukushima, and two nuclear power complexes, called the Fukushima Daiichi and Fukushima Daini. Those reactors generating electricity at the time of the earthquake shut down automatically and commenced emergency cooling procedures (Lochbaun, 2014). The reactors are not actually online but, require continuing cooling procedures affecting reactor and the associated operational components. Four of the six Daiichi reactors experienced core damage when cooling pump operations halted incident to flooding. When tsunami waves become very huge in height, they attack coastlines, causing severe property damage and many deaths. The remaining two Daiichi reactors and all four Daini reactors successfully maintained component cooling operations. Despite the magnitude of the earthquake, all ten reactors maintained structural integrity. Actual reactor damage was entirely attributable to tsunami impact. This report describes the physical impact…

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