2004年首都圈地区中小地震的矩张量反演  

MOMENT TENSOR INVERSION OF THE 2004 SMALL-MODERATE SIZE EARTHQUAKES IN THE CAPITAL REGION

作　　者：许力生[1] 蒋长胜[1] 陈运泰[1] 李春来[1] 张天中[1] 

机构地区：[1]中国地震局地球物理研究所,中国北京100081

出　　处：《地震学报》2007年第3期229-239,共11页Acta Seismologica Sinica

基　　金：国际973项目(2001CB711005;2004DFA06000);中国地震局重点攻关项目(2004BA601B)资助.

摘　　要：通过首都圈地区宽频带数字地震波形反演,获得了2004年发生在该地区的51次中小地震的矩张量解,由此确定了这些地震的标量地震矩、矩震级、双力偶分量和补偿线性矢量偶极分量的大小以及断层面参数和应力轴参数,并通过数值试验对反演结果进行了评价.The moment tensor solutions of 51 small-moderate size earthquakes occurred in the Capital Region in the year of 2004 are obtained by inverting the broadband waveform data. Accordingly, other source parameters, such as scalar seismic moments, moment magnitudes, double-couple components and compensated-linear-vector-dipole components, are determined as well as fault parameters and stress-axis parameters. The inverted results are evaluated by groups of numerical tests.

关 键 词：首都圈地区 中小地震 矩张量反演 

分 类 号：P315.3[天文地球—地震学]