SHEAR-WAVE POLARIZATION ANISOTROPY IN THE UPPER-MANTLE FROM A DEEP EARTHQUAKE

被引:10
作者
IIDAKA, T [1 ]
OBARA, K [1 ]
机构
[1] NATL RES INST EARTH SCI & DISASTER PREVENT,TSUKUBA,IBARAKI,JAPAN
关键词
D O I
10.1016/0031-9201(94)90099-X
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Shear-wave polarization anisotropy in the upper mantle is investigated at the spatially dense seismic stations of the National Research Institute for Earth Science and Disaster Prevention located in central Japan, by the use of the ScS wave of a deep earthquake which occurred beneath Sakhalin island on 12 May 1990. A characteristic pattern is found: small and large shear-wave anisotropy values are observed at seismic stations located on the east and west sides of the volcanic front, respectively.
引用
收藏
页码:19 / 25
页数:7
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