中国大陆地震视应力空间分布研究  

ON DISTRIBUTION OF APPARENT SEISMIC STRESS IN CHINESE MAINLAND

作　　者：张彬[1] 杨选辉[1] 

机构地区：[1]中国地震局地壳应力研究所,北京100085

出　　处：《大地测量与地球动力学》2007年第5期26-30,共5页Journal of Geodesy and Geodynamics

基　　金：中国地震局地壳应力研究所所长基金(ZDJ2007-22)

摘　　要：利用1900～2005年的中强震地震资料计算了中国大陆地震的平均视应力。中国大陆平均视应力为0.67MPa,略高于全球平均水平,中国东部平均视应力为0.32MPa,西部为0.97MPa。研究表明:利用地震震级计算的中国大陆地震视应力大小与利用数字地震波资料测定结果相差不大,其空间分布基本一致。The average seismic apparent stress and its distribution in Chinese mainland are presented by use of data of medium-strong earthquake from 1900 to 2005. The stress is 0.67 MPa, more than the global level a little and 0.32 MPa in eastern China,0.97 MPa in western China. It is turns out that the average seismic apparent stress calculated with seismic magnitude in Chinese mainland is similar to that calculated with digital seismic wave data and the distribution is coincident with each other.

关 键 词：地震视应力 地震波 地震矩 地震能量 应力应变场 

分 类 号：P315.727[天文地球—地震学]