2  天祝-景泰6.2级地震震中附近地质构造及历史震中分布图

     ①阿尔金断裂;②昌马断裂;③肃南断裂;④古浪断裂;

     ⑤毛毛山-老虎山断裂;⑥海原断裂

Fig. 2  Map of regional geological structure and distribution of

        historical earthquakes around the MS 6.2 Tianzhu-Jingtai

        earthquake area