图1  大同-阳高6.1级地震（前）测震台站（a）及大同遥测台网子台（b）分布图

Fig. 1  (a) Distribution of the seismometric stations before the 

            M6.1 Datong-Yanggao earthquake

        （b）Distribution of the seismoetric substations of the 

             Datong telemetry network