DOI: 10.1002/2014GL062794
论文题名: The role of effective normal stress, frictional properties, and convergence rates in characteristics of simulated slow slip events
作者: Watkins W.D. ; Colella H.V. ; Brudzinski M.R. ; Richards-Dinger K.B. ; Dieterich J.H.
刊名: Geophysical Research Letters
ISSN: 0094-8950
EISSN: 1944-8681
出版年: 2015
卷: 42, 期: 4 起始页码: 1061
结束页码: 1067
语种: 英语
英文关键词: numerical modeling
; propagation speeds
; recurrence intervals
; Slow slip events
; subduction zones
Scopus关键词: Fault slips
; Friction
; Numerical models
; Transport properties
; Earthquake simulator
; Effective normal stress
; Frictional properties
; Possible mechanisms
; Propagation speed
; Recurrence intervals
; Slow slip events
; Subduction zones
; Speed
; convergence
; earthquake event
; fault slip
; friction
; numerical model
; recurrence interval
; simulation
; simulator
; strike (geology)
; subduction zone
英文摘要: Slow slip events (SSEs) observed in subduction zones around the world exhibit a wide range of recurrence intervals, durations, and propagation speeds. To illuminate possible mechanisms responsible for the observed variability and guide future modeling efforts, we employ the earthquake simulator RSQSim to explore the effects of variations in the convergence rates, frictional parameters, and effective normal stress on SSE characteristics. Both recurrence intervals and durations of SSEs are essentially directly proportional to the effective normal stress, while along-strike propagation speeds are inversely proportional. Effective normal stresses in the range of 3-9 MPa produce fault slip consistent with observed SSEs. Changes in rate-state frictional instability (b-a) have a moderate inverse effect on propagation speeds but much weaker effects on recurrence intervals and durations. Convergence rates are inversely proportional to recurrence intervals, propagation speeds show a weak positive relationship, and event durations appear insensitive. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924856536&doi=10.1002%2f2014GL062794&partnerID=40&md5=1228bf59d83c5bdb30a8a9377eda15c8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8566
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: Department of Geoscience, Indiana University of Pennsylvania, Indiana, PA, United States
Recommended Citation:
Watkins W.D.,Colella H.V.,Brudzinski M.R.,et al. The role of effective normal stress, frictional properties, and convergence rates in characteristics of simulated slow slip events[J]. Geophysical Research Letters,2015-01-01,42(4).