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Japan plant designers did not foresee strong quake
Tokyo (AFP) Aug 26, 2007 An earthquake last month that forced the closure of the world's largest nuclear plant in Japan was about 2.7 times stronger than the maximum considered in the plant's design guidelines, a report said Sunday. The Tokyo Electric Power Co. (TEPCO), which operates the Kashiwazaki-Kariwa nuclear power plant, registered the July 16 quake at 993 gals, the Mainichi Shimbun reported. Gal is a unit measuring the speed of acceleration. The government's guidelines for the design of nuclear power plants only envisioned quakes of up to 370 gals, the report said, adding eight of the country's 17 plants were built based on that estimate. Experts are now calling for a review of the guidelines in the wake of last month's 6.8-magnitude quake in central Japan which shut down the plant, which supplies 10 percent of TEPCO's electricity. The giant facility northwest of Tokyo caught fire and leaked a small amount of radiation following the quake, which killed 11 people in unrelated incidents. Japanese nuclear authorities expect the plant to be offline for about a year for safety checks, although the UN International Atomic Energy Agency said last week the plant had no major safety problems. Despite its propensity for earthquakes, Japan relies on nuclear plants for nearly one-third of its power needs as it has virtually no natural energy resources. The company and government have already acknowledged that they never anticipated that such a strong quake would hit the area near the Kashiwazaki-Kariwa plant. Community Email This Article Comment On This Article Related Links Civil Nuclear Energy Science, Technology and News Powering The World in the 21st Century at Energy-Daily.com
India's 'Red Czar': plotting to end US nuclear deal
New Delhi (AFP) Aug 24, 2007India's Prakash Karat, the Communist Party leader who wants to halt an Indo-US nuclear deal, is an old school Marxist but his methods have so far proven highly effective, plunging the government into crisis. |
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