On March 11th 2011, turbines and reactors of Fukushima Daini Nuclear
Power Station Unit 1 to 4 (Boiling Water Reactor, rated output 1100
Megawatts) that had been operating at rated power automatically shutdown
at 2:48 pm due to the Tohoku-Chihou-Taiheiyou-Oki Earthquake (previously
announced on March 11th).
At 7:15 pm on March 15th, the reactor of Unit 4 achieved cold shutdown.
As a result, all reactors of Unit 1 to 4 at Fukushima Daini Nuclear Power
Station achieved cold shutdown (previously announced on March 15th).
<Updates are underlined>
Regarding the earthquake occurred at 5:16 pm on April 11th (previously
announced in the press release "Plant conditions after the earthquake" on
April 11th), we have been inspecting the plant, however, no trouble on the
plant facilities has been detected.
Regarding the earthquake occurred at 2:07 pm on April 12th (previously
announced in the press release "Plant conditions after the earthquake" on
April 12th), we are now conducting inspection of the plant.
The figures indicated at exhaust stack monitors and monitoring posts at
the station boundary are within the usual range, and there is no influence
of radioactivity outside as of now.
As of 4:00 pm on April 12th, the reactors of Unit 1 to 4 are in cold
shutdown (please refer to the attachment). We continue to make our
endeavor to stabilize each plant.
Appendix:TEPCO Plant Status of Fukushima Daini Nuclear Power Station
(as of 4:00 pm April 12th)(PDF 17.3KB)