【摘要】 1955年以来藏、青、川、滇交界地区5级以上地震活动处于平静~活跃的韵律状态,本文详细讨论了这期间出现的10次完整的平静~活跃过程,讨论了过程中所表现出的若干现象,及其与青藏块体大范围地震活动存在的呼应关系。更多还原

【Abstract】 Since 1955,the siesmicity with M≥5.0 in the juncture region of Tibet,Qinghai,Sichuan and Yunnan provinces has been in a alternate rhythm state of quietude and activity.In this paper,the 10 whole quiet-active periods are discussed.Some phenomena represented by the 10 periods,and their correlative relations with the seismicity in a large area of Tibet-Qinghai Block are discussed also.更多还原