Coseismic water-level changes in a well induced by teleseismic waves from three large earthquakes
Coseismic water-level changes in a well induced by teleseismic waves from three large earthquakes
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三次大地震远震波引起的井内同震水位变化
DOI:
10.1016/j.tecto.2015.02.027
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发表时间:
2015-05
期刊:
影响因子:
2.9
通讯作者:
Chen Xuezhong
中科院分区:
文献类型:
--
作者:
Zhang Yan;Fu Li-Yun;Huang Fuqiong;Chen Xuezhong
Three large earthquakes (the 2007Mw8.4 Sumatra, the 2008Mw7.9 Wenchuan, and the 2011Mw9.0 Tohoku) induce coseismic water-level increment at far fields (epicentral distances > 1000 km) in the Fuxin well located in the Fuxin City, northeastern China (the well with the observation of both water levels and volume strains). A comprehensive analysis for the mechanism of far-field coseismic water-level changes is performed by analyzing the in-situ permeability, Skempton's coefficientB, and with the broadband seismograms from a nearby station. We observe an undrained compaction with a decreasing permeability induced by the shaking of teleseismic waves in the far field. Shaking by teleseismic waves can induce compaction or dilatation in the aquifer of Fuxin well; is able to enhance permeability and thus build a new pore-pressure equilibrium system between the Fuxin well and the nearby Sihe reservoir (150 m away from the Fuxin well). The resulting interstitial fluid flow across the region increases coseismic water levels in the aquifer of Fuxin well.
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影响因子:
3
作者:
Zhao Lian-Feng;Xie Xiao-Bi;Wang Wei-Min;Yao Zhen-Xing
通讯作者:
Yao Zhen-Xing
DOI:
10.1088/0031-9112/7/10/004
发表时间:
2011-09
期刊:
Physics Bulletin
影响因子:
--
作者:
W. Ni
通讯作者:
W. Ni
影响因子:
5.2
作者:
N. Matsumoto
通讯作者:
N. Matsumoto
影响因子:
--
作者:
E. Roeloffs
通讯作者:
E. Roeloffs
影响因子:
3
作者:
Yan Zhang;Fu-qiong Huang
通讯作者:
Yan Zhang;Fu-qiong Huang