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CCC-E-11-19

The Fukushima Nuclear Accident of Japan

【Translator:Jason LIU,Han CHEN】At 14:46 on March 11, an earthquake registered 9.0 on the Richter scale struck the sea near northeast Japan in northern Miyagi Prefecture at focal depth of 10 kilometers. Japan Meteorological Agency immediately issued a tsunami alert, stated that the earthquake will trigger a six meter tall tsunami. As a result of the great earthquake, four nuclear power plants in Japan suffered various extents of damages. They are all located north and northeast of Tokyo. The Power Plants I and II located at Fukushima are operated by the Tokyo Electric Power Company. Since Japan is a nation prone to earthquakes, power plants are constructed with measures to minimize earthquake damages. At the same time, all of the nuclear power plants within Japan ceased operation. As a nation that historically promoted the development of nuclear power, nuclear power supplies one-third of the electricity in the overall electricity generation system. . Immediately following the earthquake, all nuclear power plants were shut off either automatically or manually, causing great impacts to Japan’s normal power supply.Just as people thought that shut down of nuclear power plants will not cause any further complications, an accident occurred. Due to the strong earthquake on March 11, the emergency power supply system at the Fukushima I Nuclear Power Plant was damaged by the tsunami. The nuclear reactor cooling system was unable to operate due of the damages sustained by the stand-by power generating system; therefore, reactors lost their ability to cool. In addition, leakage of nuclear substance was detected at the Fukushima II Nuclear Power Plant.

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Main Topics: Non-government Administration Date Published:
Language: English Advisor: PENG Zongchao
Geographic Region: China Teaching Tools: NO

BI Engao

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