摘要
为合理估计汶川8.0级特大地震后中国大陆的地震形势,本文通过对中国大陆特大地震后地震活动的统计分析,初步获得了对中国大陆特大地震调整作用的一些认识:①特大地震发生后1年内,除余震区外,中国大陆其他地区的地震活动以应力调整为主线,发生7级以上地震的可能性较小;②调整作用主要发生在西部的青藏活动地块区;③青藏地块区特大地震对华北地块区的地震调整作用较小。
For a reasonable evaluation of earthquake tendency after Wenchuan Ms8.0 earthquake in Chinese mainland, a preliminary study of seismic activity after great earthquakes in Chinese mainland is presented, which shows ： （1） in 1 year after a great earthquake, outside of the aftershock area, the seismic activity in Chinese mainland is controlled mainly by the adjustment of stress from the great earthquake, and the possibility of a strong earthquake （ M ≥ 7.0） is low; （2） the adjusting effect of the great earthquake occurs mainly in Qinghai-Xizang active block of Western China; （3） on Northern China active blocks, the adjusting effect from great earthquakes of Qinghai-Xizang active blocks is less.
出处
《中国地震》
CSCD
北大核心
2009年第2期193-198,共6页
Earthquake Research in China
基金
基本科研业务专项(ZDJ2007-6)
国家科技支撑计划项目子专题(2006BAC13B02)资助
关键词
特大地震
调整作用
活动地块
Great earthquake Adjusting effect Active block
