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Fukushima I (Dai-Ichi), nuclear power plant, Japan
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Fukushima I (Dai-Ichi), Nuclear Power Plant, Japan

Unit 1 is a 460 MW boiling water reactor (BWR-3) constructed in July 1967. It commenced commercial electrical production on March 26, 1971, and was initially scheduled for shutdown in early 2011. In February 2011, Japanese regulators granted an extension of ten years for the continued operation of the reactor. It was damaged during the 2011 Sendai earthquake and tsunami.
Unit 1 was designed for a peak ground acceleration of 0.18 g (1.74 m/s2) and a response spectrum based on the 1952 Kern County earthquake. All units were inspected after the 1978 Miyagi earthquake when the ground acceleration was 0.125 g (1.22 m/s2) for 30 seconds, but no damage to the critical parts of the reactor was discovered. However the 2011 Sendai earthquake recorded a ground acceleration of 0.35 g (3.43 m/s2) near the epicenter.

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Keywords:#fukushima #dai #ichi #nuclear #power #plant #japan
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Date added:Apr 07, 2011
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