2  宁蒗5.5级地震区域断裂构造及历史地震震中分布图(据文献[1])

      ①剑川-丽江-木里断裂;②永胜-程海断裂

      ③箐河-程海断裂;④宁蒗-程海断裂

Fig.2  Map of regional fault structure and epicentral 

       distribution of historical earthquakes around 

       the  MS5.5 Ninglang epicentral area