Abstract：This paper analyzes the seismic anisotropy parameters in the crust and obtains the characteristics of the stress field. The results show that the characteristics of the seismic anisotropy in Rushan region are influenced by both regional stress and local tectonics. Predominant polarization directions of fast shear-waves at DSDC are nearly NW. Combining the direction of epicenters of earthquake sequence and larger earthquake focal mechanism, it is concluded that the active fault in nearly NW direction is near the DSDC, and may be the possible generating fault of the RSH earthquake sequence. Polarization directions of fast shear-waves at BSTZ and CXZX are nearly EW; thus, there is probably possible active structure in nearly EW direction around the two stations.
MIAO Qingjie,GAO Yuan,LIU Xiqiang et al. Tectonic Stress Analysis Based on the Crustal Seismic Anisotropy in Rushan Earthquake Near-Field Region[J]. jgg, 2017, 37(3): 234-239.
