DOI: 10.1002/2016GL070129
论文题名: Method for estimating the stress field from seismic moment tensor data based on the flow rule in plasticity theory
作者: Matsumoto S.
刊名: Geophysical Research Letters
ISSN: 0094-8704
EISSN: 1944-8435
出版年: 2016
卷: 43, 期: 17 起始页码: 8928
结束页码: 8935
语种: 英语
英文关键词: seismic moment tensor
; stress field
Scopus关键词: Earthquakes
; Estimation
; Geophysics
; Plastic deformation
; Seismology
; Stresses
; Classical equation
; Constitutive relations
; Deviatoric stress tensor
; Earthquake occurrences
; Plastic strain tensors
; Seismic moment tensor
; Shallow earthquakes
; Stress field
; Tensors
; crustal evolution
; earthquake
; estimation method
; faulting
; moment tensor
; seismicity
; strain rate
; stress field
; Japan
; Kyushu
英文摘要: The stress field is a key factor controlling earthquake occurrence and crustal evolution. In this study, we propose an approach for determining the stress field in a region using seismic moment tensors, based on the classical equation in plasticity theory. Seismic activity is a phenomenon that relaxes crustal stress and creates plastic strain in a medium because of faulting, which suggests that the medium could behave as a plastic body. Using the constitutive relation in plastic theory, the increment of the plastic strain tensor is proportional to the deviatoric stress tensor. Simple mathematical manipulation enables the development of an inversion method for estimating the stress field in a region. The method is tested on shallow earthquakes occurring on Kyushu Island, Japan. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84984839680&doi=10.1002%2f2016GL070129&partnerID=40&md5=6f621eb441b3c7810a076dc3fab14f84
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9667
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Institute of Seismology and Volcanology, Faculty of Sciences, Kyushu University, Shimabara, Japan
Recommended Citation:
Matsumoto S.. Method for estimating the stress field from seismic moment tensor data based on the flow rule in plasticity theory[J]. Geophysical Research Letters,2016-01-01,43(17).