气候变化领域集成服务门户(CCPortal): High Rates of Deep Earthquake Dynamic Triggering in the Thermal Halos of Subducting Slabs

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DOI	10.1029/2019GL086125
	High Rates of Deep Earthquake Dynamic Triggering in the Thermal Halos of Subducting Slabs
	Luo Y.; Wiens D.A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:8
英文摘要	Observations of remote dynamic triggering of intermediate and deep (I&D) earthquakes can potentially clarify the faulting process but have not been systematically compiled. We relocate earthquakes following the two largest recent deep earthquakes with a multiple-event location algorithm and compile a comprehensive catalog of dynamically triggered I&D earthquakes from 1964 to 2015. We find 119 large I&D earthquakes that likely dynamically triggered aftershocks at distances between two mainshock fault lengths and 400 km during the first 4 days following these mainshocks. Dynamic triggering is more common for deep than for intermediate depth earthquakes and is overrepresented in areas with low seismicity that are adjacent to slabs, which suggest that subducting slabs in the transition zone are surrounded by material that is critically stressed but warm enough to inhibit rupture initiation. The passage of seismic waves may initiate runaway ductile shear failure, which nucleates over a period of minutes to days. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Faulting; Shear flow; Deep earthquakes; Ductile shear failure; Dynamic triggering; Faulting process; Intermediate-depth earthquakes; Mainshock faults; Subducting slabs; Transition zones; Earthquakes; aftershock; earthquake rupture; earthquake trigger; seismic wave; seismicity; slab; subduction zone; transition zone
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170445
作者单位	Department of Earth and Planetary Sciences, Washington University, St. Louis, MO, United States; Now at Department of Geology and Geophysics, Yale University, New Haven, CT, United States
推荐引用方式 GB/T 7714	Luo Y.,Wiens D.A.. High Rates of Deep Earthquake Dynamic Triggering in the Thermal Halos of Subducting Slabs[J],2020,47(8).
APA	Luo Y.,&Wiens D.A..(2020).High Rates of Deep Earthquake Dynamic Triggering in the Thermal Halos of Subducting Slabs.Geophysical Research Letters,47(8).
MLA	Luo Y.,et al."High Rates of Deep Earthquake Dynamic Triggering in the Thermal Halos of Subducting Slabs".Geophysical Research Letters 47.8(2020).