据地应力测量结果表明,当今华北地区构造应力场的主应力为近东西方向,即近东西方向的水平挤压应力为现代华北地区地震活动的主要动力源。1983年菏泽5.9级地震的应力场也是如此。聊考断裂带是鲁西南一条较大规模的断裂构造带,也是一条地震活动带,历史上曾多次发生过破坏性地震。该断裂带南起河南省兰考,经堌阳、东明集、范县、聊城西至夏津附 According to the stress measurement results, the main stress of the tectonic stress field in North China today is near east-west direction, that is, the horizontal crushing stress in the near east-west direction is the main source of seismic activity in North China. The 1983 Heze M5.9 earthquake stress field as well. The Chatou fault zone is a large-scale fault structure zone in the southwest of Shandong Province and a seismic activity zone. Destructive earthquakes have occurred many times in history. The fault zone south of Lankao, Henan Province, the Leiyang, Dongming set, Fan County, Liaocheng west to Xiajin attached