成组连发过程中的大姚6.2和6.1级地震  

The Dayao M6.2 and M6.1 Earthquakes During the Grouped Continuous Process

作　　者：张俊伟[1] 李永莉[1] 叶建庆[1] 王琼伟[1] 

机构地区：[1]云南省地震局,昆明650041

出　　处：《地震研究》2004年第z1期23-28,共6页Journal of Seismological Research

基　　金：地震联合基金(100148)和云南省自然科学基金(2000D0090M)

摘　　要：从中强地震成组连发的角度,分析了成组连发过程中大姚间歇性6级双震孕育和发生的震源环境及其运动学与动力学参数。在此基础上,着重比较了本次双震和历史上两次6级间歇性双震的序列参数和地震波动力学参数,对深入揭示云南成组地震韵律特性的力学背景和地震活动趋势的研究将有所启发。From the view of grouped continuous process of mid-strong earthquakes, the seismogenesis, source ambience, kinematics, dynamic features of Dayao double M6 earthquakes in Yunnan have been analyzed. On the basis of this, we have compared the sequence parameters and dynamic of the seismic wave of the double shocks with the past intermittent double M6 earthquakes. The analysis would be helpful to the study of seismicity tendency, kinematics background of the seismic rhythm in Yunnan.

关 键 词：中强地震 成组连发 大姚双震 间歇性 波速比 应力降 

分 类 号：P315.1[天文地球—地震学]