Tepco To Recalculate Potential Tsunami Height Near Niigata Nuke Plant

TEPCO to recalculate potential tsunami height near Niigata nuke plantTokyo Electric Power Co. (TEPCO) announced April 26 that it will recalculate the height of a potential tsunami that may strike its Kashiwazaki-Kariwa Nuclear Power Plant in Niigata Prefecture.

The move was pushed forward after four prefectures located along the Sea of Japan released their own estimates, which state that the scale of a potential earthquake in the area where the nuclear plant is located is in fact up to around 2.8 times stronger than what TEPCO has estimated.

Based on current TEPCO estimations, a magnitude 7.85 quake may occur at a fault extending some 131 kilometers near Niigata Prefecture's Sado Island, which could trigger a 3.3-meter-high tsunami. Based on these estimations, the company is currently proceeding with the construction of an embankment that would resist waves of up to some 15 meters in height.

via Mainichi