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[1]
ZHU Lu-pei,ZENG Rong-sheng,LIU Fu-tian.1990.3-D P wave velocity structure under theBeijing network area. ActaGeophysSinica .
Three-dimensional P velocity structure in Beijing area
被引：4
作者：
于湘伟
陈运泰
王培德
机构：
[1] InstituteofGeophysics
[2] ChinaSeismologicalBureau
[3] ChinaSeismologicalBureau Beijing
[4] China
[5] Beijing
关键词：
tomography;
three-dimensional velocity structure;
seismic activity;
high velocity anomalies;
low velocity anomalies;
lateral heterogeneity;
D O I：
暂无
中图分类号：
P315.3 [地震波、地震震级、震源物理];
学科分类号：
070801 ;
摘要：
A detail three-dimensional P wave velocity structure of Beijing, Tianjin and Tangshan area (BTT area) was deter-mined by inverting local earthquake data. In total 16 048 P wave first arrival times from 16048 shallow and mid-depth crustal earthquakes, which occurred in and around the BTT area from 1992 to 1999 were used. The first arrival times are recorded by Northern China United Telemetry Seismic Network and Yanqing-Huailai Digital Seismic Network. Hypocentral parameters of 1 132 earthquakes with magnitude ML=1.7～6.2 and the three-dimensional P wave velocity structure were obtained simultaneously. The inversion result reveals the com-plicated lateral heterogeneity of P wave velocity structure around BTT area. The tomographic images obtained are also found to explain other seismological observations well.
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页码：1 / 15+126
+126
页数：16
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