气候变化领域集成服务门户(CCPortal): Imaging Stress and Faulting Complexity Through Earthquake Waveform Similarity

CCPortal

DOI	10.1029/2019GL085888
	Imaging Stress and Faulting Complexity Through Earthquake Waveform Similarity
	Trugman D.T.; Ross Z.E.; Johnson P.A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:1
英文摘要	While the rupture processes of nearby earthquakes are often highly similar, characterizing the differences can provide insight into the complexity of the stress field and fault network in which the earthquakes occur. Here we perform a comprehensive analysis of earthquake waveform similarity to characterize rupture processes in the vicinity of Ridgecrest, California. We quantify how similar each earthquake is to neighboring events through cross correlation of full waveforms. The July 2019 Ridgecrest mainshocks impose a step reduction in earthquake similarity, which suggests variability in the residual stress field and activated fault structures on length scales of hundreds of meters or less. Among these aftershocks, we observe coherent spatial variations of earthquake similarity along the mainshock rupture trace, and document antisimilar aftershock pairs with waveforms that are nearly identical but with reversed polarity. These observations provide new, high-resolution constraints on stress transfer and faulting complexity throughout the Ridgecrest earthquake sequence. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Complex networks; Earthquake effects; Stresses; Comprehensive analysis; Crustal stress; Earthquake sequences; Earthquake waveforms; Fault structure; Residual stress fields; Slip mechanism; Waveform cross correlation; Faulting; active fault; aftershock; complexity; earthquake event; earthquake rupture; fault; faulting; imaging method; residual stress; stress field; California; United States
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/170876
作者单位	Geophysics Group, Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, United States; Seismological Laboratory, California Institute of Technology, Pasadena, CA, United States
推荐引用方式 GB/T 7714	Trugman D.T.,Ross Z.E.,Johnson P.A.. Imaging Stress and Faulting Complexity Through Earthquake Waveform Similarity[J],2020,47(1).
APA	Trugman D.T.,Ross Z.E.,&Johnson P.A..(2020).Imaging Stress and Faulting Complexity Through Earthquake Waveform Similarity.Geophysical Research Letters,47(1).
MLA	Trugman D.T.,et al."Imaging Stress and Faulting Complexity Through Earthquake Waveform Similarity".Geophysical Research Letters 47.1(2020).