On March 11th 2011, turbines and reactors of Fukushima Daini Nuclear Power
Station Units 1 to 4 (Boiling Water Reactors, rated output 1,100 Megawatts)
that we had been constantly operating at rated thermal output
were automatically shut down 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 Units 1 to 4 at Fukushima Daini Nuclear Power
Station achieved cold shutdown (previously announced on March 15th).  

As of 3:00 pm on May 21st, the reactors of Unit 1 to 4 are in cold
shutdown (please refer to the appendix). We continue to make our endeavors
to stabilize each plant.

∙There is no update from the previous press release. 

Appendix: TEPCO Plant Status of Fukushima Daini Nuclear Power Station 
                                                         (PDF 17.0KB)