气候变化领域集成服务门户(CCPortal): A Geology and Geodesy Based Model of Dynamic Earthquake Rupture on the Rodgers Creek-Hayward-Calaveras Fault System, California

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DOI	10.1029/2020JB020577
	A Geology and Geodesy Based Model of Dynamic Earthquake Rupture on the Rodgers Creek-Hayward-Calaveras Fault System, California
	Harris R.A.; Barall M.; Lockner D.A.; Moore D.E.; Ponce D.A.; Graymer R.W.; Funning G.; Morrow C.A.; Kyriakopoulos C.; Eberhart-Phillips D.
发表日期	2021
ISSN	21699313
卷号	126 期号:3
英文摘要	The Hayward fault in California's San Francisco Bay area produces large earthquakes, with the last occurring in 1868. We examine how physics-based dynamic rupture modeling can be used to numerically simulate large earthquakes on not only the Hayward fault, but also its connected companions to the north and south, the Rodgers Creek and Calaveras faults. Equipped with a wealth of images of this fault system, including those of its 3D geology and 3D geometry, in addition to inferences about its interseismic creep-rate pattern and rock-friction behavior, we use a finite-element computer code to perform 3D dynamic earthquake rupture simulations. We find that the rock properties affect the locations and amount of slip produced in our simulated large earthquakes. Crucial factors that control rupture behavior in our modeling are the earthquake nucleation locations, the fault geometry, and the data that reveal where the fault system is creeping or locked. Our findings suggest that large Rodgers Creek-Hayward-Calaveras-Northern Calaveras (RC-H-C-NC) fault-system earthquakes may result from dynamic rupture that starts in a locked part of the fault system, but is then stopped by the creeping parts, leading to high-magnitude-6 earthquakes; or, from dynamic rupture that starts in a locked part of the fault system, then cascades through some of the creeping parts, leading to magnitude-7 earthquakes. © 2021. The Authors. This article has been contributed to by US Government employees and their work is in the public domain in the USA.
英文关键词	Calaveras fault; dynamic rupture; earthquake; fault creep; Hayward fault; Rodgers Creek fault
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187261
作者单位	U.S. Geological Survey, Moffett Field, CA, United States; Invisible Software, San Jose, CA, United States; U.S. Geological Survey, Menlo Park, CA, United States; Department of Earth and Planetary Sciences, University of California, Riverside, Riverside, CA, United States; CERI, The University of Memphis, Memphis, TN, United States; Department of Earth and Planetary Sciences, University of California, Davis, CA, United States; GNS Science, Dunedin, New Zealand
推荐引用方式 GB/T 7714	Harris R.A.,Barall M.,Lockner D.A.,et al. A Geology and Geodesy Based Model of Dynamic Earthquake Rupture on the Rodgers Creek-Hayward-Calaveras Fault System, California[J],2021,126(3).
APA	Harris R.A..,Barall M..,Lockner D.A..,Moore D.E..,Ponce D.A..,...&Eberhart-Phillips D..(2021).A Geology and Geodesy Based Model of Dynamic Earthquake Rupture on the Rodgers Creek-Hayward-Calaveras Fault System, California.Journal of Geophysical Research: Solid Earth,126(3).
MLA	Harris R.A.,et al."A Geology and Geodesy Based Model of Dynamic Earthquake Rupture on the Rodgers Creek-Hayward-Calaveras Fault System, California".Journal of Geophysical Research: Solid Earth 126.3(2021).