Tuesday, March 15, 2011


IAEA Update on Japan Earthquake

Staff Report

Japan Earthquake Update (15 March 2011, 06:15 CET)

Japanese authorities informed the IAEA that there has been an explosion at the Unit 2 reactor at the Fukushima Daiichi plant. The explosion occurred at around 06:20 on 15 March local Japan time.

Japanese authorities also today informed the IAEA at 04:50 CET that the spent fuel storage pond at the Unit 4 reactor of the Fukushima Daiichi nuclear power plant is on fire and radioactivity is being released directly into the atmosphere.

Dose rates of up to 400 millisievert per hour have been reported at the site. The Japanese authorities are saying that there is a possibility that the fire was caused by a hydrogen explosion.

The IAEA is seeking further information on these developments.

The IAEA continues to liaise with the Japanese authorities and is monitoring the situation as it evolves.

Japan Earthquake Update (15 March 2011, 03:35 CET)
Japanese authorities yesterday reported to the IAEA at 21:05 CET that the reactors Units 1, 2 and 3 of the Fukushima Daini nuclear power plant are in cold shutdown status. This means that the pressure of the water coolant is at around atmospheric level and the temperature is below 100 degrees Celsius. Under these conditions, the reactors are considered to be safely under control.

Japanese authorities have also informed the IAEA that teams of experts from Tokyo Electric Power Company (TEPCO), the plant´s operator, are working to restore cooling in the reactor Unit 4 and bring it to cold shutdown.

The IAEA continues to liaise with the Japanese authorities and is monitoring the situation as it evolves.


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