云南地区地震序列分类的定量讨论  

QUANTIATIVE DISCUSSION ON THE CLASSIFICATION OF THE SEISMIC SEQUENCE IN YUNNAN PROVINCE

作　　者：蔡静观[1] 王兴辉[1] 雷素华[1] 张喜玲[1] 

机构地区：[1]云南省地震局

出　　处：《高原地震》1996年第2期18-24,共7页Plateau Earthquake Research

基　　金：国家地震局"八五"重点项目

摘　　要：本文通过对云南地区１９６５提以来１１６次大小地震序列的清理和归纳，引入了地震序列分类的时空强定量尺度，提出；表明震源区进人失稳状态的前震序列主要发生在主震前１０天，前震序列的最大震级５．５级；震群型地震序列在时间、地点上的确定应与震级有关，在时间上以同在地震孕期内为宜，７、６、５级分别不超过１年、半年、３个月，在地点上以同在地震孕震区内为２，７、６、５级分别不超过１００、５０、３０公里，震级上以小子等于０．５级为宜；主余震地震序列和孤立型地震序列的最大震级差分别是２．９级和３．Baed on the research of 116 seismic sequences in Yunnan province since 1965, the quantitativescaling of the seismic time-spuce-intersoty were led into seismic sequence classifiction . The authorsPut forward the foreshock sequence whiCh is a indication that the focal zone may be enter a destabitizing state had occurred mainly in 10 days before mainshock and the maximum magnitude is 5. 5, the determination of the time and locale of earthquake swarm sequence is relation with magntitude, namely,the former is fit together in the seismogenic Period and magnitude 7. 6 and 5 don't exceed 1 year. 0. 5year and three months respeCtively, the latter is fit together in the seismogenic zone and magnitude 7.6 and 5 don't exceed 100. 50 and 30 km respectiveig, the magnitude is fit M≤0. 5, the- difference valne of maximum magnitude of mainshock-aftershock sequence and isolated type sequence is 2. 9 and3. 3 respectively.

关 键 词：序列类型 前震序列 震群型地震序列 主余震地震序列 定量尺度 

分 类 号：P56[天文地球—构造地质学]