【摘要】 依据近百年来川滇强震 (M≥ 6 5)的时序特征和地理图像分别作出了两种不同的活跃幕划分 ,其差别主要在 194 1年耿马—澜沧地震的归属不同 ,但划分其后的 194 8～ 1998年的三个强震活跃幕却是一致的。另外还对强震幕的起止标志、重现性及对未来 (2 1世纪初 )的强震活动趋势作了简要讨论。更多还原

【Abstract】 According to both characteristics of time sequence and geographic image of strong earthquakes M≥6.5 about a century in Sichuan and Yunnan, two methods of dividing active episodes are put forward. Three active episodes of strong earthquake from 1948 to 1998 are same. Also the starting and ending indexes of strong earthquakes, recurrence and tendency of strong earthquakes in new century are discussed.更多还原