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Unexpected far-field hydrological response to a great earthquake

文献类型：期刊论文

作者Zhang, Yan1,2,3,4; Wang, Chi-Yuen4; Fu, Li-Yun5; Zhao, Bo6; Ma, Yuchuan6
刊名EARTH AND PLANETARY SCIENCE LETTERS
出版日期2019-08-01
卷号519页码:202-212
ISSN号0012-821X
关键词water level tidal response barometric response poro-elastic properties of aquifers horizontal and vertical flow
DOI10.1016/j.epsl.2019.05.007
英文摘要Permeability, an important crustal property that controls transport processes in Earth's shallow crust, is known to change during large earthquakes, with significant implications on the groundwater resources and contaminant transport. Analysis of the response of groundwater in wells to Earth tides has been increasingly used to detect such changes, but often multiple interpretations of the response changes are possible, making it difficult to ascertain its hydrological implications. Here we use data from a groundwater well in North China to illustrate the use of barometric response as a method to resolve this uncertainty. The tidal response of water level in this well shows abrupt coseismic increases of both phase shift and amplitude ratio after the far-field great 2011 M-w 9.1 Tohoku earthquake, which may be interpreted either as a large increase in the horizontal permeability of a confined aquifer or as an occurrence in the vertical permeability of an unconfined aquifer. Using data for the water-level response to barometric pressure we show that the aquifer was confined both before and after the Tohoku earthquake; thus the coseismic changes of the tidal response in this well are more likely to be due to an increase in the horizontal permeability. Interpretation of the tidal response shows a hereto unidentified change of poroelastic property in the far field of an earthquake, which stayed constant for similar to 4 years after the earthquake until silt-cleaning in the well interrupted data collection. Thus the dynamic shaking during the Tohoku earthquake may have caused permanent deformation in the shallow crust at epicentral distances >1500 km. (C) 2019 Elsevier B.V. All rights reserved.
WOS关键词WATER-LEVEL CHANGES ; DISTANT EARTHQUAKES ; MECHANISM ; WELL ; STRAIN ; PERMEABILITY ; TIDE
资助项目National Natural Science Foundation of China[41604035] ; National Natural Science Foundation of China[41874161] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010303] ; US NSF[EAR1344424] ; Youth Innovation Promotion Association Foundation of the Chinese Academy of Sciences[2019069]
WOS研究方向Geochemistry & Geophysics
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000472689200020
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; US NSF ; US NSF ; Youth Innovation Promotion Association Foundation of the Chinese Academy of Sciences ; Youth Innovation Promotion Association Foundation of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; US NSF ; US NSF ; Youth Innovation Promotion Association Foundation of the Chinese Academy of Sciences ; Youth Innovation Promotion Association Foundation of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; US NSF ; US NSF ; Youth Innovation Promotion Association Foundation of the Chinese Academy of Sciences ; Youth Innovation Promotion Association Foundation of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; US NSF ; US NSF ; Youth Innovation Promotion Association Foundation of the Chinese Academy of Sciences ; Youth Innovation Promotion Association Foundation of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/92498]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Wang, Chi-Yuen; Fu, Li-Yun
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, 19 Beitucheng Western Rd, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
4.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA
5.China Univ Petr East China, Key Lab Deep Oil & Gas, Qingdao 266580, Shandong, Peoples R China
6.China Earthquake Networks Ctr, 5 Sanlihenanheng Ave, Beijing 100045, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Yan,Wang, Chi-Yuen,Fu, Li-Yun,et al. Unexpected far-field hydrological response to a great earthquake[J]. EARTH AND PLANETARY SCIENCE LETTERS,2019,519:202-212.
APA Zhang, Yan,Wang, Chi-Yuen,Fu, Li-Yun,Zhao, Bo,&Ma, Yuchuan.(2019).Unexpected far-field hydrological response to a great earthquake.EARTH AND PLANETARY SCIENCE LETTERS,519,202-212.
MLA Zhang, Yan,et al."Unexpected far-field hydrological response to a great earthquake".EARTH AND PLANETARY SCIENCE LETTERS 519(2019):202-212.

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来源：地质与地球物理研究所

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