图19 震中周围ML2.5～4.9级地震3月滑动b值曲线

图19 震中周围M_L2.5～4.9级地震3月滑动b值曲线

Fig.19 b-value curve of M_L2.5～4.9 earthquakes around the epicentral area

with time window of 3 months

　