图2  大同及邻区地质构造与历史地震震中分布图

     ①阳高-天镇断裂；②口泉断裂；③大王村断裂；④六棱山前断裂；

     ⑤恒山南山前断裂；⑥五台山山前断裂；⑦系舟山山前断裂

Fig. 2  Geological structure and epicentral distribution 

        of historical earthquakes in the Datong and its adjacent area