摘要
本文采用P、S最大振幅比资料测定中、小地震震源机制参数的方法,测定了澜沧—耿马地震前后震区182个中、小震的震源机制参数。并将这些结果结合大震及强余震震源机制P波初动解,对大震前后震区应力场方向的时空调整变化,以及序列的震源错动性质等进行了分析和讨论。
The source mechanism parameters of 182 moderate and small events in the seismic area before and after Lancang-Gengma Earthquake have been determined by the method of P and S maximum amplitude ratio. Combined the obtained results with the P first onsets of the event and its strong aftershocks the temporal-spatial variation of stress field direction in the seismic area before and after the event and the source dislocation properly of the sequence have been analysed and discussed.
出处
《地震研究》
CSCD
北大核心
1991年第3期197-202,共6页
Journal of Seismological Research
关键词
振幅比
地震
震源机制
澜沧-耿马
P and S amplitude ratio
Source mechanism
Luncang-Gengma earthquake
