Coseismic responses of groundwater levels in the Three Gorges well-network to the Wenchuan Ms8.0 earthquake

Chenglong Liu; Guangcai Wang; Weihua Zhang; Jiangchang Mei

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Coseismic responses of groundwater levels in the Three Gorges well-network to the Wenchuan Ms8.0 earthquake

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We systematically analyze coseismic responses and post-seismic characteristics of groundwater levels in the Three Gorges well-network to the Afs8.0 Wenchuan earthquake on 12 May 2008. The results indicate that these characteristics differ among wells. On the conditions of similar borehole configurations, the differences are associated with geological structural sites of wells, burial types of aquifers monitored, and transmissivities of aquifer systems. We explored coseismic and post-seismic step-rise and step-drop mechanical mechanisms and their implication to earthquake prediction. We validated the inference that the residual step-rise zone is a possible earthquake risk zone based on recent seismic activity on the Xianniishan fault in the area.

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《地震学报（英文版）》 |2009年第2期|143-148|共6页
作者
Chenglong Liu; Guangcai Wang; Weihua Zhang; Jiangchang Mei;
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作者单位

Institute of Geology, China Earthquake Administration, Beijing 100029, China;

School of Water Resources and Environment, China University of Geosciences, Beijing 100083, China;

School of Water Resources and Environment, China University of Geosciences, Beijing 100083, China;

Institute of Seismology, China Earthquake Administration, Wuhan 430071, China;

Institute of Seismology, China Earthquake Administration, Wuhan 430071, China;

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正文语种 chi
中图分类地下水动态与地震;
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Coseismic responses of groundwater levels in the Three Gorges well-network to the Wenchuan Ms8.0 earthquake

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