天祝-古浪5.4级地震前震源区应力场的短临变化特征  

STUDY ON THE SHORT-TERM VARIATION CHARACTERISTICSOF THE LOCAL STRESS FIELD INTHE SOURCE AREA OF TIANZHU-GULANG EARTHQUAKE(M5.4)

作　　者：荣代潞[1] 张元生[1] 李亚荣[1] 

机构地区：[1]中国地震局兰州地震研究所,甘肃兰州730000

出　　处：《高原地震》2000年第2期37-42,共6页Plateau Earthquake Research

基　　金：地震科学联合基金重点项目!( 95- 0 7- 436 )资助

摘　　要：利用矩张量反演方法反演了 1996年 6月 1日天祝 -古浪 5 .4级地震序列的震源机制 ,并与该区小震综合断层面解进行了比较。在此基础上讨论了该地震前后震源区应力场的变化特征。The source mechnisms of the seismic sequence of Tianzhu Gulang earthquake(M5.4,June 1,1996)has been inverted using the method of seismic moment tensor,the results are compared with the ones of the synthetic fault plane solutions from the micro events in the area.On the basis of it the variation characteristics of stress field in the source area before and after the earthquake have been discussed.

关 键 词：矩张量反演 区域应力场 短临变化 震源区 地震 

分 类 号：P315.727[天文地球—地震学]