Home > Japan, News > Japan:TEPCO forecast 10-meter tsunami

Japan:TEPCO forecast 10-meter tsunami

Monday, October 3, 2011

Laaska News Oct. 3,2011

Government documents show that the operator of the Fukushima Daiichi nuclear plant predicted in 2008 that a tsunami over 10 meters high could hit the plant, which was only designed to withstand tsunami of 5.7 meters. But it failed to report this to the government until just before the March 11th disaster.

At the request of NHK, the government on Monday released a simulation report by Tokyo Electric Power Company.

TEPCO had predicted that waves between 8.4 and 10.2 meters high could hit all 6 reactors at the plant in the event of an earthquake similar to one that devastated the area in 1896.
But the prediction was not conveyed to the government’s nuclear safety agency until March 7th, just 4 days before the plant was crippled by tsunami.

In the report, TEPCO also said it would begin examining the plant’s tsunami-resistance measures in April of this year. It said it planned to deal appropriately with the matter by around October of 2012, when academics were expected to review their tsunami evaluations.

TEPCO official Junichi Matsumoto says the company did not feel the need to take prompt action on the estimates, which were still tentative calculations in the research stage.

But a Nuclear and Industrial Safety Agency official says it is regrettable that TEPCO did not start work on its tsunami measures right after it made the estimate 3 years ago. He said TEPCO should have called on experts to discuss its calculations in public.

Laaska News.