【摘要】 对云南地震序列和强震震源机制的分析与研究表明,云南地区具有较明显的地震类型分区特征.总体上云南全区地震断层以走向滑动为主,地震序列以主余震型为主.考虑到非走滑地震断层和非主余震型地震序列所占的比例,可以将云南地区划分为4个具有不同特点的分区:滇中(A1)走滑-主余震型区、滇西北(A2)斜滑-震群型区、滇西(B1)走滑-双震型区和滇西南(B2)准走滑-主余震型区.更多还原

【Abstract】 Studies on the earthquake sequences and the source mechanisms of the strong earthquakes show that Yunnan has more obvious subarea characteristics of earthquake type. Strike-slip seismic fault and mainshock-aftershock earthquake sequences are dominant in whole Yunnan area. Considering the ratio of non strike-slip faults and non mainshock-aftershock, Yunnan area can be divided into four subareas with different characteristics, which are strike-slip mainshock-aftershock in central Yunnan (A1), incline-slip swarm in northwestern Yunnan (A2), strike-slip double shock in western Yunnan (B1) and quasi-strike-slip mainshock-aftershock in southwestern Yunnan (B2), respectively.更多还原