DOI: 10.1002/2015GL067183
论文题名: Modeling of the coseismic electromagnetic fields observed during the 2004 Mw 6.0 Parkfield earthquake
作者: Gao Y. ; Harris J.M. ; Wen J. ; Huang Y. ; Twardzik C. ; Chen X. ; Hu H.
刊名: Geophysical Research Letters
ISSN: 0094-9476
EISSN: 1944-9207
出版年: 2016
卷: 43, 期: 2 起始页码: 620
结束页码: 627
语种: 英语
英文关键词: 2004 Parkfield earthquake
; coseismic electromagnetic signals
; electrokinetic effect
; forward modeling
Scopus关键词: Electric field effects
; Electric fields
; Electrodynamics
; Electromagnetic fields
; Geophysics
; Earthquake rupture
; Electrochemical heterogeneity
; Electrokinetic effect
; Electromagnetic signals
; Finite fault source model
; Forward modeling
; Kinematic inversion
; Magnetic response
; Earthquakes
; coseismic process
; earthquake rupture
; electrokinesis
; electromagnetic field
; electromagnetic wave
; forward modeling
; Parkfield earthquake 2004
; seismic response
; California
; Parkfield
; United States
英文摘要: The coseismic electromagnetic signals observed during the 2004 Mw 6 Parkfield earthquake are simulated using electrokinetic theory. By using a finite fault source model obtained via kinematic inversion, we calculate the electric and magnetic responses to the earthquake rupture. The result shows that the synthetic electric signals agree with the observed data for both amplitude and wave shape, especially for early portions of the records (first 9 s) after the earthquake, supporting the electrokinetic effect as the reasonable mechanism for the generation of the coseismic electric fields. More work is needed to explain the magnetic fields and the later portions of the electric fields. Analysis shows that the coseismic electromagnetic (EM) signals are sensitive to both the material properties at the location of the EM sensors and the electrochemical heterogeneity in the vicinity of the EM sensors and can be used to characterize the underground electrochemical properties. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84956869611&doi=10.1002%2f2015GL067183&partnerID=40&md5=83101e6854f1bd4485d8878613102ce5
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10439
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: School of Civil Engineering, Hefei University of Technology, Hefei, China
Recommended Citation:
Gao Y.,Harris J.M.,Wen J.,et al. Modeling of the coseismic electromagnetic fields observed during the 2004 Mw 6.0 Parkfield earthquake[J]. Geophysical Research Letters,2016-01-01,43(2).