东昆仑断裂带古地震综合研究

Ancient earthquake research of east Kunlun fault zone

整合多年来前人对东昆仑活动断裂带各段落古地震零散的现场考证结果,经过分析将其归并成68条独立的古地震事件及4条历史地震.根据功能原理,从理论上推导出断层段各震级档地震的约束关系.利用现代地震统计得到的区域地震活动性参数b、现场考证得到的各区段平均走滑速率、各震级档一次地震事件的平均位错量和破裂带长度,计算各段和全带不同震级档地震的平均复发周期,在此基础上讨论其地震活动规律.

By sorting out and analyzing the previous research of the pioneers about East Kunlun Fault Zone, this article got 68 independent paleoseismic events and 4 historic events. According to the function principle, we deduced the constraint relations of earthquake magnitudes of the fault segment in theory. We calculated the average seismic recurrence period of the different earthquake magnitudes in all the segments using such physical quantities as the regional seismicity parameters （b value） , the average slip rate, the average dislocation and the length of rupture zone , which were got by counting modern seismicity and on-the-spot investigations, and then discussed the seismic activity laws on these bases.