PERMEABILITY ENHANCEMENT IN THE AQUIFER OF FUXIN WELL IN GEOTHERMAL AREA OF NORTHEASTERN CHINA INDUCED BY LOW-FREQUENCY TELESEISMIC WAVES OF THE 2011 M-w 9.0 TOHOKU EARTHQUAKE

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	PERMEABILITY ENHANCEMENT IN THE AQUIFER OF FUXIN WELL IN GEOTHERMAL AREA OF NORTHEASTERN CHINA INDUCED BY LOW-FREQUENCY TELESEISMIC WAVES OF THE 2011 M-w 9.0 TOHOKU EARTHQUAKE
	Zhang, Yan 1; Fu, Li-Yun 1; Huang, Fuqiong 2; Chen, Xuezhong 3
刊名	ACTA GEODYNAMICA ET GEOMATERIALIA
	2015
卷号	12 期号:1 页码:29-38
关键词	Permeability variation Teleseismic waves M-w 9.0 Tohoku earthquake Coseismic water level changes Volume strain variation
文献子类	Article
英文摘要	The M-w 9.0 Tohoku large earthquake induces far field (epicentral distance >1800 km) prominent coseismic water-level increase in the Fuxin well at northeastern China, which also influences volumetric strains. Different mechanisms of far-field coseismic water-level changes are analyzed by integrating these water-level/volume-strain data with broadband seismograms from a nearby station. Dilatation induced by propagating teleseismic wave (central frequency 0.02 Hz) may be the dominant mechanism of the observed water-level increases in the aquifer of Fuxin well. The dynamic energy density of similar to 5x10(-2) J/m(3) from the earthquake (computed from broadband seismograms), could be large enough to incur the far-field dilatation stress of similar to 0.35 MPa (with the strain variation of -3.7935x10(-6)) in the aquifer. The resulting enhancement in permeability by the dilatation stress can build a new pore-pressure equilibrium between the Fuxin well and the nearby Sihe reservoir (similar to 150 m away from the Fuxin well). The induced interstitial fluid flow in the region accounts for the sustained large-amplitude coseismic water-level increase. The Fuxin well lies in the geothermal area, and this study may also has some implications for the geothermal resource exploration.
WOS关键词	REMOTELY TRIGGERED SEISMICITY ; WATER-LEVEL CHANGES ; DISTANT EARTHQUAKES ; MECHANISM ; DEFORMATION ; CALIFORNIA ; PRESSURE ; CALDERA ; FAULTS ; FIELD
WOS研究方向	Geochemistry & Geophysics ; Mining & Mineral Processing
语种	英语
WOS记录号	WOS:000352975100002
资助机构	Strategic Leading Science and Technology Programme (Class B) of the Chinese Academy of Sciences(XDB10010400) ; Strategic Leading Science and Technology Programme (Class B) of the Chinese Academy of Sciences(XDB10010400) ; Strategic Leading Science and Technology Programme (Class B) of the Chinese Academy of Sciences(XDB10010400) ; Strategic Leading Science and Technology Programme (Class B) of the Chinese Academy of Sciences(XDB10010400)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/62602]
专题	地质与地球物理研究所_地球深部结构与过程研究室
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earths Deep Interior, Beijing 100029, Peoples R China 2.China Earthquake Networks Ctr, Beijing 100036, Peoples R China 3.China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yan,Fu, Li-Yun,Huang, Fuqiong,et al. PERMEABILITY ENHANCEMENT IN THE AQUIFER OF FUXIN WELL IN GEOTHERMAL AREA OF NORTHEASTERN CHINA INDUCED BY LOW-FREQUENCY TELESEISMIC WAVES OF THE 2011 M-w 9.0 TOHOKU EARTHQUAKE[J]. ACTA GEODYNAMICA ET GEOMATERIALIA,2015,12(1):29-38.
APA	Zhang, Yan,Fu, Li-Yun,Huang, Fuqiong,&Chen, Xuezhong.(2015).PERMEABILITY ENHANCEMENT IN THE AQUIFER OF FUXIN WELL IN GEOTHERMAL AREA OF NORTHEASTERN CHINA INDUCED BY LOW-FREQUENCY TELESEISMIC WAVES OF THE 2011 M-w 9.0 TOHOKU EARTHQUAKE.ACTA GEODYNAMICA ET GEOMATERIALIA,12(1),29-38.
MLA	Zhang, Yan,et al."PERMEABILITY ENHANCEMENT IN THE AQUIFER OF FUXIN WELL IN GEOTHERMAL AREA OF NORTHEASTERN CHINA INDUCED BY LOW-FREQUENCY TELESEISMIC WAVES OF THE 2011 M-w 9.0 TOHOKU EARTHQUAKE".ACTA GEODYNAMICA ET GEOMATERIALIA 12.1(2015):29-38.