气候变化领域集成服务门户(CCPortal): Complex Rupture of an Immature Fault Zone: A Simultaneous Kinematic Model of the 2019 Ridgecrest; CA Earthquakes

CCPortal

DOI	10.1029/2019GL086382
	Complex Rupture of an Immature Fault Zone: A Simultaneous Kinematic Model of the 2019 Ridgecrest; CA Earthquakes
	Goldberg D.E.; Melgar D.; Sahakian V.J.; Thomas A.M.; Xu X.; Crowell B.W.; Geng J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:3
英文摘要	The 4 July 2019 Mw6.4 and subsequent 6 July 2019 Mw7.1 Ridgecrest sequence earthquakes (CA, USA) ruptured orthogonal fault planes in a low slip rate (1 mm/year) dextral fault zone in the area linking the Eastern California Shear Zone and Walker Lane. This region accommodates nearly one fourth of plate boundary motion and has been proposed to be an incipient transform fault system that could eventually become the main tectonic boundary, replacing the San Andreas Fault. We investigate the rupture process of these events using a novel simultaneous kinematic slip method with joint inversion of high-rate GNSS, strong motion, GNSS static offset, and Interferometric Synthetic Aperture Radar data. We model the Coulomb stress change to evaluate how the Mw6.4 earthquake may have affected the subsequent Mw7.1 event. Our findings suggest complex interactions between several fault structures, including dynamic and static triggering, and provide important context for regional seismic source characterization and hazard models. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Earthquakes; Kinematics; Strike-slip faults; Structural geology; Synthetic aperture radar; Transform faults; Coulomb stress changes; Eastern California; Interferometric synthetic aperture radars; Kinematic slip models; Ridgecrest sequence; San Andreas fault; Seismic triggering; Tectonic boundaries; Fault slips; earthquake event; earthquake rupture; fault zone; GNSS; hazard assessment; kinematics; plate boundary; radar altimetry; seismic tomography; slip rate; transform fault; California; San Andreas; United States; Walker Lane
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/170755
作者单位	Department of Earth Sciences, University of Oregon, Eugene, OR, United States; Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States; Department of Earth and Space Sciences, University of Washington, Seattle, WA, United States; GNSS Center, University of Wuhan, Wuhan, China
推荐引用方式 GB/T 7714	Goldberg D.E.,Melgar D.,Sahakian V.J.,et al. Complex Rupture of an Immature Fault Zone: A Simultaneous Kinematic Model of the 2019 Ridgecrest; CA Earthquakes[J],2020,47(3).
APA	Goldberg D.E..,Melgar D..,Sahakian V.J..,Thomas A.M..,Xu X..,...&Geng J..(2020).Complex Rupture of an Immature Fault Zone: A Simultaneous Kinematic Model of the 2019 Ridgecrest; CA Earthquakes.Geophysical Research Letters,47(3).
MLA	Goldberg D.E.,et al."Complex Rupture of an Immature Fault Zone: A Simultaneous Kinematic Model of the 2019 Ridgecrest; CA Earthquakes".Geophysical Research Letters 47.3(2020).