Monday, April 11, 2011

JAPAN: Confirmation of new earthquake...

IAEA Update: New earthquake in Japan (11 April, 11:30 UTC)

The IAEA confirms that an earthquake occurred in Japan on 11 April at 08:16 UTC. The IAEA International Seismic Safety Centre has rated it as a 6.6 magnitude, revised from an initial 7.1 magnitude. The epicenter of the earthquake is 68 kilometres from the Fukushima Daiichi nuclear power plant, 60 kilometres from the Fukushima Daini nuclear power plant, 61 kilometres from Tokai Daini nuclear power plant, 173 kilometres from Kashiwazaki-Kariwa nuclear power plant, and 179 kilometres from Onagawa nuclear power plant. The epicenter was in land (37.01 N/ 140.48 E) at a depth of 13.1 km.

The IAEA has been in contact with Japan's Nuclear and Industrial Safety Agency (NISA) and can confirm the status of the following nuclear facilities:

Fukushima Daiichi NPP

Based on a report by the Tokyo Electric Power Company (TEPCO), NISA confirms that no changes have been observed on the readings at the on-site radiation monitoring posts. Workers have been evacuated to the seismic evacuation shelter. Off-site power was lost and water injection pumps for Units 1, 2 and 3 stopped.

NISA confirms later that off-site power was restored and water injection resumed 50 minutes after the earthquake.

Fukushima Daini NPP

NISA confirms that no changes have been observed on the readings at the on-site radiation monitoring posts and that off-site power remained available.

Onagawa NPP

The five off-site power lines remain available. No changes have been observed on the readings at the on-site radiation monitoring posts.

Tokai Daini NPP

Tokai Daini nuclear power plant remains in cold shutdown since the 11 March earthquake. No abnormality has been observed.
http://www.iaea.org/newscenter/news/tsunamiupdate01.html