Stress‐ and Structure‐Induced Anisotropy in Southern California From Two Decades of Shear Wave Splitting Measurements

DOI number:10.1002/2017gl075163

Affiliation of Author(s):中国科学技术大学地球和空间科学学院

Journal:Geophysical Research Letters

Place of Publication:美国

Abstract:We measure shear wave splitting (SWS) parameters (i.e., fast direction and delay time) using 330,000 local earthquakes recorded by more than 400 stations of the Southern California Seismic Network (1995–2014). The resulting 232,000 SWS measurements (90,000 high‐quality ones) provide a uniform and comprehensive database of local SWS measurements in Southern California. The fast directions at many stations are consistent with regional maximum compressional stress σ Hmax . However, several regions show clear deviations from the σ Hmax directions. These include linear sections along the San Andrea

First Author:Zefeng Li

Co-author:Zhigang Peng

Indexed by:Journal paper

Correspondence Author:Zefeng Li

Document Code:7

Discipline:Natural Science

First-Level Discipline:Geophysics

Document Type:SCI

Volume:44

Issue:19

Page Number:9607-9614

ISSN No.:0094-8276

Translation or Not:no

Date of Publication:2017-10-05

Links to published journals:https://doi.org/10.1002/2017gl075163