藏、青、川、滇交界地区地震活动性分析

Analysis of Seismicity in the Juncture Region of Tibet, Qinghai, Sichuan and Yunnan Provinces

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。

Abstract:

Since 1955, the siesmicity with M≥5.0 in the juncture region of Tibet, Qinghai, S chuan and Yunnan provinces has been in a alternate rhythm state of quietude and activity. In th S 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.