摘要
昆仑山口西8 1级地震后中国大陆地震活动一度出现了少有的平静态势,2003年中强地震出现了明显的增强过程,尤其是6级以上强震活跃。从8 1级巨震的孕育背景、历史巨震震例及现今地震活动分布格局对中国大陆的强震形势及青海的地震趋势进行了分析讨论,认为未来数年中国大陆西部存在发生7级地震的背景,青海地区强震危险区可能仍以东昆仑断裂带及邻近的唐古拉地震带为主。
Seismicity in China mainland is quiet after the great earthquake with Ms 8.1,but the medium-strong earthquakes,especially strong earthquakes with Ms≥6.0,are enthanced obviously since 2003.The earthquake situation in China mainland and its tendency in Qinghai province are analyzed,the results show that strong earthquakes with Ms≥7.0 may be occurred in western China in several years later,and Qinghai strong earthquake risk area may be in eastern Kunlun fault and Tanggula seismic belt.
出处
《高原地震》
2004年第2期1-8,共8页
Plateau Earthquake Research
关键词
昆仑山口西8.1级地震
地震活动格局
强震危险区
West pass of Kunlunshan earthquake with Ms≥8.1
Seismicity pattern
Strong earthquake risk area
