DOI: 10.1002/2013GL058418
论文题名: Insights into water level response to seismic waves: A 24 year high-fidelity record of global seismicity at Devils Hole
作者: Weingarten M. ; Ge S.
刊名: Geophysical Research Letters
ISSN: 0094-10508
EISSN: 1944-10239
出版年: 2014
卷: 41, 期: 1 起始页码: 74
结束页码: 80
语种: 英语
英文关键词: dynamic triggering
; earthquakes
; hydrology
; permeability
; pore pressure
Scopus关键词: Crustal stress
; Dynamic triggering
; Effective stress
; Orders of magnitude
; Permeability change
; Poroelastic deformation
; Pressure change
; Response frequency
; Dynamics
; Hydrology
; Mechanical permeability
; Pore pressure
; Water levels
; Earthquakes
; coseismic process
; earthquake
; permeability
; pore pressure
; Rayleigh wave
; seismic wave
; seismicity
; water level
; Devils Hole
; Nevada
; United States
英文摘要: We studied the 24 year record of water level responses in Devils Hole, Death Valley National Park, NV, to dynamic crustal stresses from earthquakes. The continuous water level record exhibited 219 responses from earthquakes around the world, displaying hydroseismogram and coseismic offset types of response. We found that the water level in Devils Hole is extremely sensitive to earthquakes, and the seismic energy density required to initiate both hydroseismogram and coseismic offset responses is e ~ 10-6 J/m 3, 2 orders of magnitude smaller than previously documented. Multiple mechanisms at Devils Hole may be responsible for observed water level responses to distant earthquakes. The hydroseismogram-type responses are best explained by poroelastic deformation, while coseismic offset responses are likely the result of localized permeability changes. This study could have implication to studying dynamic triggering of earthquakes, as remote earthquakes can lead to pore pressure changes and consequently effective stress changes in fluid-filled fault zones. Key Points Devils Hole sets new threshold of water level sensitivity to remote earthquakes Water level response frequency is characteristic of Rayleigh wave triggering Several mechanisms, both dilatation and permeability change, operate at one site ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896696213&doi=10.1002%2f2013GL058418&partnerID=40&md5=b034abefc634569a3de9e59073533fca
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7772
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Department of Geological Sciences, University of Colorado, Boulder, CO, United States
Recommended Citation:
Weingarten M.,Ge S.. Insights into water level response to seismic waves: A 24 year high-fidelity record of global seismicity at Devils Hole[J]. Geophysical Research Letters,2014-01-01,41(1).