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A preliminary report on the Great Wenchuan Earthquake

Date: 2018-05-31      View counts: 540    


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A preliminary report on the Great Wenchuan Earthquake

Wang Zifa
Earthquake Engineering and Engineering Vibration
Investigation on earthquake disaster
Paper Keyword
Wenchuan Earthquake; field investigation; ground motions; vertical acceleration
The May 12, 2008 Great Wenchuan Earthquake has resulted in more than 68,858 deaths and losses in the hundreds of billions RMB as of May 30, 2008, and these numbers will undoubtedly increase as more information becomes available on the extent of the event. Immediately after the earthquake, the China Earthquake Administration (CEA) responded quickly by sending teams of experts to the affected region, eventually including over 60 staff members from the Institute of Engineering Mechanics (IEM). This paper reports preliminary information that has been gathered in the first 18 days after the event, covering seismicity, search and rescue efforts, observed ground motions, and damage and loss estimates.The extensive field investigation has revealed a number of valuable fi ndings that could be useful in improving research inearthquake engineering in the future. Once again, this earthquake has shown that the vertical component of ground motion is as signifi cant as horizontal ground motions in the near-source area. Finally, note that as more information is gathered, the numbers reported in this paper will need to be adjusted accordingly.
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