气候变化领域集成服务门户(CCPortal): Seismogenic and tremorgenic slow slip near the stability transition of frictional sliding

CCPortal

DOI	10.1016/j.epsl.2021.117037
	Seismogenic and tremorgenic slow slip near the stability transition of frictional sliding
	Nie S.; Barbot S.
发表日期	2021
ISSN	0012821X
卷号	569
英文摘要	Slow-slip events and tremors occur below the seismogenic zone of major plate boundaries. While the physics of aseismic slow-slip events is relatively well understood, the mechanics of seismogenic slow slip remains elusive because the conditions leading to slow or fast ruptures are thought to be mutually exclusive. Here, we explore fault dynamics in the parametric space of frictional conditions to show that seismogenic slow-slip events are the natural behavior of homogeneous faults, as long as the velocity dependence approaches velocity neutral with a small characteristic nucleation size. Tremors can originate from rapid bursts of slow earthquakes that are triggered as the slow-slip rupture spreads over small-scale asperities. The near velocity-neutral conditions explain the underlying mechanics of collocated slow and fast slip of seismogenic slow-slip events commonly found below the seismogenic zone. The presence of material heterogeneity may explain the spatio-temporal clustering and migration features of tremor activity. © 2021 Elsevier B.V.
关键词	earthquake physics slow slip events tremors
英文关键词	Earthquakes; Condition; Earthquake physics; Fault dynamics; Frictional sliding; Parametric spaces; Plate boundaries; Seismogenic zones; Slow slip events; Stability transition; Tremor; Friction; cluster analysis; microtremor; parameter estimation; seismic velocity; seismicity; seismogram; seismotectonics; spatiotemporal analysis; stability analysis
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203240
作者单位	University of Southern California, Department of Earth Sciences, United States
推荐引用方式 GB/T 7714	Nie S.,Barbot S.. Seismogenic and tremorgenic slow slip near the stability transition of frictional sliding[J],2021,569.
APA	Nie S.,&Barbot S..(2021).Seismogenic and tremorgenic slow slip near the stability transition of frictional sliding.Earth and Planetary Science Letters,569.
MLA	Nie S.,et al."Seismogenic and tremorgenic slow slip near the stability transition of frictional sliding".Earth and Planetary Science Letters 569(2021).