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The 2002 Denali earthquake occurred at 22:12:41 UTC (1:12 PM Local Time) November 3, 2002, with an epicenter 66 km ESE of Denali National Park, Alaska, United States. This 7.9 ''M''w earthquake was the largest recorded in the interior of the United States for more than 150 years. The shock was the strongest ever recorded in the interior of Alaska. Due to the remote location, there were no fatalities and only a few injuries. Due to the shallow depth of the focus of the earthquake at 4.20 km, the quake was felt at least as far away as Seattle and it generated seiches on bodies of water as far away as New Orleans.〔http://www.aeic.alaska.edu/Denali_Fault_2002/〕 About 20 houseboats were damaged by a seiche on a lake in Washington State.〔 ==Earthquake damage== Minor damage was reported over a wide area but the only examples of severe damage were on highways that crossed the fault trace and areas that suffered liquefaction, e.g. Northway Airport Several bridges were damaged but none so severely that they were closed to traffic. Due to the general self-sufficiency of those living near the fault rupture, very few lifeline systems were compromised. These people tend to get water from private wells, heat their homes and cook their meals with gas furnaces and stoves, and maintain individual septic systems.〔 The Trans-Alaska Pipeline System crosses the rupture trace; the pipeline suffered some minor damage to supports during the earthquake. There was no oil spillage, as the pipeline at that location was designed to move laterally along beams to withstand major movement on the Denali Fault.〔Sorensen, S.P. and Meyer, K.J.: (Effect of the Denali Fault Rupture on the Trans-Alaska Pipeline ); Sixth U.S. Conference and Workshop on Lifeline Earthquake Engineering, ASCE, August 2003.〕 The pipeline was shut down for three days to allow for inspections but was then reopened. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「2002 Denali earthquake」の詳細全文を読む スポンサード リンク
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