地震学报（英文版）2008，Vol.21Issue(2)：127-138,12.
Shear-wave splitting of Sichuan Regional Seismic Network
Shear-wave splitting of Sichuan Regional Seismic Network
摘要
Abstract
Using seismic data recorded by the Chengdu Digital Seismic Network from May 1, 2000 to December 31, 2006, we obtain the dominant polarization directions of fast shear-waves at eight digital seismic stations adopting the SAM technique. The results show that the dominant directions of polarizations of fast shear-waves at most of sta- tions are mainly in nearly NE,-SW or NW-SE direction in Sichuan. The dominant polarization directions of the fast shear-waves at stations located at the active faults or intersection of several active faults are consistent with the strikes of active faults which control the earthquakes used in the analysis, and are basically consistent with the directions of regional compression axis. However, several stations show that the fast shear-waves are not consis- tent with the strikes of active faults and the directions of regional compression axis, due to the influence of local complicated crustal structure.关键词
shear-wave splitting/ polarization of fast shear-wave/ compression axis/ active fault/ Sichuan regionKey words
shear-wave splitting/ polarization of fast shear-wave/ compression axis/ active fault/ Sichuan region分类
天文与地球科学引用本文复制引用
ZHANG Yong-jiu,GAO Yuan,SHI Yu-tao,CHENG Wan-zheng..Shear-wave splitting of Sichuan Regional Seismic Network[J].地震学报（英文版）,2008,21(2):127-138,12.基金项目
Essence Scientific Research Item of Institute of Earthquake Science, China Earthquake Administration. （）
