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北京周围地区属于地震监测的首都圈范围,探索断裂性状、断裂的活动历程的重要性,不言而喻。据近期的人工地震资料的解译,发现一些地震剖面存在花状构造,它们是走滑断裂的表现形式。具体到北京地区存在5条晚第三纪北东向走滑断裂,有些可能在早更新世也有活动。自北而南依次是燕郊牛堡屯走滑断裂、夏店走滑断裂、河西务走滑断裂、牛东走滑断裂、及涿西走滑断裂。就地震预测来说,面临这些北东向活动断裂,决不能掉以轻心。
It is self-evident that the area around Beijing belongs to the metropolitan area under seismic monitoring and the importance of exploring the history of fracture properties and faults. According to the recent interpretation of artificial seismic data, some seismic sections are found in flower-shaped structures, which are the manifestations of strike-slip faults. Specifically, there are five Late Tertiary strike-slip faults in the area of Beijing, and some may have activities during the Early Pleistocene. From north to south, they are Yanbo Niubertunning strike-slip fault, Xiadian strike-slip fault, Hexiwu strike-slip fault, Niudong-strike-slip fault and Xuxi strike-slip fault. In the case of earthquake prediction, we must never be light-hearted in the face of these north-east movements.