图2  格尔木5.3级地震震中附近主要断裂构造及历史地震震中分布图

     ①茫崖-油沙山断裂；②格尔木-诺木洪隐伏断裂

Fig.2  Map of main fault structure and epicentral distribution of 

       historical earthquakes around the epicentral area of 

       the  M_s5.3 Geermu earthquake