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hypocenter |
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hypocenter [′hī·pə‚sent·ər] (geophysics) The point along a fault where an earthquake is initiated. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Geological Survey--as to the hypocenter, epicenter, depth, and moment magnitude. The predominance of long-period waves during the first 2 seconds suggests that the fracture initially spread smoothly and slowly from the earthquake hypocenter, located about 18 kilometers below the surface. A preliminary analysis of data from a new survey of acute deaths among Japanese residents who had lived within 1,300 meters of the atomic-bobm hypocenter in Hiroshima suggests that the radiation dose required to kill 50 percent of those exposed -- the LD-50 -- may be four times lower than previously thought. |
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