DOI: 10.1002/2013GL058322
论文题名: Detection of short-term slow slip events along the Nankai Trough via groundwater observations
作者: Kitagawa Y. ; Koizumi N.
刊名: Geophysical Research Letters
ISSN: 0094-8306
EISSN: 1944-8037
出版年: 2013
卷: 40, 期: 23 起始页码: 6079
结束页码: 6083
语种: 英语
英文关键词: earthquake forecast
; groundwater
; poroelastic theory
; slow slip events
; strain
; tremors
Scopus关键词: Earthquake forecast
; Earthquake prediction
; Groundwater pressure
; National Institute of Advanced Industrial Science and Technology
; Poroelastic theory
; Slow slip events
; Strain sensitivity
; tremors
; Earthquakes
; Forecasting
; Industrial research
; Strain
; Groundwater
; detection method
; earthquake prediction
; fault
; geological survey
; groundwater
; microtremor
; numerical model
; poroelasticity
; pressure gradient
; slip
; subduction zone
; Japan
; Nankai Trough
; Pacific Ocean
英文摘要: In order to develop new tools or techniques to detect short-term slow slip events (S-SSEs) along subduction zones, we attempted to detect S-SSEs by conducting groundwater pressure observations. At ANO station, which is a groundwater observation station operated by the Geological Survey of Japan, the National Institute of Advanced Industrial Science and Technology, for earthquake prediction research, groundwater pressures changed due to six S-SSEs that occurred near ANO from June 2011 to April in 2013. The fault models of these S-SSEs, which were estimated mainly by observing the crustal strains and tilts, explained the changes in the groundwater pressures. If the strain sensitivity of the observed groundwater pressure or level is larger than 1 mm/nstrain and the noise level is smaller than 50 mm/day, it is possible to detect S-SSEs that occur in southwest Japan by conducting groundwater pressure or level observations. Key Points S-SSEs can be detected by conducting groundwater observations The conditions for detecting S-SSEs via groundwater observations are shown Our results will be useful for forecasting large earthquakes ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84889797843&doi=10.1002%2f2013GL058322&partnerID=40&md5=fc68f69441190a577462ab53409b0d2d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5570
Appears in Collections: 气候减缓与适应
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作者单位: Geological Survey of Japan, AIST, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8567, Japan
Recommended Citation:
Kitagawa Y.,Koizumi N.. Detection of short-term slow slip events along the Nankai Trough via groundwater observations[J]. Geophysical Research Letters,2013-01-01,40(23).