印尼M(下标 s)8.7地震对中国大陆3次后续中强地震的动应力触发研究

In two months after Indonesia M(subscript s)8.7 earthquake, three moderately strong earthquakes (December 26,2004 M(subscript s)5.1 Shuangbai earthquake, January 26,2005 M(subscript s)5.1 Simao earthquake and February 15,2005 M(subscript s)6.2 Wushi earthquake) occurred in China' mainland. Is there triggering relation between Indonesia M(subscript s)8.7 Earthquake and the three subsequent earthquakes? In this article we calculate the static and dynamic Coulomb stress changes in failure planes of the three subsequent earthquakes for Indonesia M(subscript s)8.7 Earthquake. The value of static stress change is smaller than the threshold one of triggering value(0.01MPa);The peak change of dynamic stress is about 10^(-1) MPa. So the change of dynamic stress is probably the triggering factor of the three subsequent earthquakes.