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Press Release (Mar 11,2011)
Occurrence of a Specific Incident Stipulated in Article 10, Clause 1 of the Act on Special Measures Concerning Nuclear Emergency Preparedness(Fukushima Daiichi)
Today at approximately 2:46PM, turbines and reactors of Tokyo Electric 
Power Company's Fukushima Daiichi Nuclear Power Station Unit 1 (Boiling 
Water Reactor, rated output 460 Megawatts) and Units 2 and 3 (Boiling 
Water Reactor, Rated Output 784 Megawatts) that had been operating at 
rated power automatically shutdown due to the Miyagiken-oki Earthquake.

For the above 3 units, off-site power was lost due to malfunction of one 
out of two off-site power system, leading to automatic startup of 
emergency diesel generators.

Subsequently, at 3:41PM, emergency diesel generators shutdown due to 
malfunction resulting in the complete loss of alternating current for 
all three units.

Hence, at 3:42PM, it was decided that a specific incident stipulated 
in Article 10, Clause 1 of the Act on Special Measures Concerning 
Nuclear Emergency Preparedness*1 has occurred and a "First Level Emergency" 
was declared and in accordance with the aforementioned Act, the Minister 
of Economy, Trade, and Industry, the Governor of Fukushima Prefecture, 
the Mayor of Okuma Town, and the Mayor of Futaba Town along with other 
involved organizations were notified of the incident.

TEPCO is taking steps to determine the exact cause behind the shutdown 
of the emergency diesel generators and is working towards their restoration.
The exhaust pipe's monitor reading indicates that radiation levels have 
remained unchanged and presently there have been no confirmed radioactivity 
impact to external environment.  Further details are in the process of 
being confirmed.

*1 Specific Incident Stipulated in Article 10, Clause 1 of the Act on 
   Special Measures Concerning Nuclear Emergency Preparedness
   The objective of the Act on Special Measures Concerning Nuclear Emergency 
   Preparedness is to protect the welfare, physical wellbeing and property 
   of Japan's citizens.  To this end, when accidents and equipment breakdown 
   have reached certain levels at nuclear power plants, the Act obligates 
   us to notify the nation, prefectures, cities and towns in order for them 
   to take necessary actions and to grasp information in a timely manner. 
   Notifications are issued out under circumstances such as when the nuclear 
   reactor cannot be shut down and/or when the water supply to the reactor 
   is cut off. 
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