The power loss at the Fukushima Daiichi nuclear plant’s No. 1 reactor in March 2011 was triggered by tsunami, Japan’s nuclear regulator said Friday, denying the possibility raised by the Diet’s investigation commission that it could have been caused by the powerful earthquake.

The Nuclear Regulation Authority’s interim report on the 2011 nuclear disaster said the power loss — which led to the failure to cool the reactor and resulted in a meltdown — and damage to equipment occurred as tsunami waves flooded the plant, citing results of its on-site probe.

Panels of the Diet, the government, plant operator Tokyo Electric Power Co. and the private sector have separately released investigation reports so far, but they differ regarding some issues….  Rest of article behind firewall http://english.kyodonews.jp/news/2014/07/302889.html