Chubu Electric told 18 ft seawall not enough protection at Hamaoka nuclear

Chubu Electric had been building an 18 ft seawall at it’s Hamaoka plant in response to the Fukushima nuclear disaster.  Japan’s nuclear safety agency has instructed Chubu Electric Power Company to implement comprehensive measures to protect its Hamaoka nuclear power plant from tsunami as tall as 21 meters, after a government panel last Friday revised upward its prediction about the likely intensity of a major earthquake expected along the Nankai Trough in the Pacific Ocean and subsequently raised the maximum height of tsunami that could be triggered by such a mega-quake.

The panel said that tsunami hitting the coast near the Hamaoka power plant could be as tall as 21 meters, or higher than the 18-meter breakwater currently being built by the Chubu Electric Power Company.

An agency official says he also called on the utility to make sure its current disaster preparedness measures were sufficient to prevent a nuclear fuel meltdown.

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  1. richardperrycolumbia@shaw.ca'

    Look these up: Should someone be charged with endangering the public.
    June 15, 1896 : A tsunami with waves up to 30 meters high attacked the east coast of Japan around Yoshihimama, leaving about 27,000 dead. [http://en.wikipedia.org/wiki/1933_Sanriku_earthquake ]
    Although the earthquake did little damage, the associated tsunami, which was recorded to reach the height of 28.7 meters (94 ft) at Ōfunato, Iwate, caused extensive damage, destroyed many homes and caused numerous casualties
    Three tsunami deposits have been identified within the Holocene sequence of the Sendai plain, all formed within the last 3,000 years, suggesting an 800 to 1,100 year recurrence interval for large tsunamigenic earthquakes. In 2001 it was reckoned that there was a high likelihood of a large tsunami hitting the Sendai plain as more than 1,100 years had then elapsed.[6]
    Predicted earthquake hazard:As for the other two large tsunamis recognized before the 869 tsunami, one was estimated to have occurred between about 1000 BC and 500 BC and the other around 1 AD.[9] In 2007 the probability of an earthquake with a magnitude of Mw 8.1–8.3 was estimated as 99% within the following 30 years.[1]

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