19  云南及邻区b值、震情指数Ab)值曲线4)

Fig.19  Curves for b-value and index of seismic situation

         in Yunnan and its adjacency

         范围:北纬21—29°,东经97—106°;(a) 样本数为120,滑动步长50;

         (b) 样本数为6个月,逐月滑动