图16 沐川三次5级以上地震震前ML≥2.0地震震中分布图
(a)1991.9.1~1992.08.31; (b)1992.09.01~1993.08.07;
(c)1993.8.8~1994.12.30; (d)1994.12.31~1995.04.26
Fig.16 Distribution of the ML≥2.0 earthquakes before the MS5.0,5.7 and 5.1
Muchuan earthquakes around the epicentral area