图19 大同-阳高6.1级地震前大同及附近地区地震震中分布图
(38°~42°N,112°~116°E,1987.10~1989.10,ML ≥2.5)
Fig. 19 Epicentral distribution of earthquakes in Datong
adjacent area before the M6.1 Datong-Yanggao
earthquake