摘要
西藏地处印度板块与欧亚板块的接触带上,是我国强震多发地区之一。1973年7月14日申扎西北7.3级大震后至今已23年无7级以上大震发生,超过本世纪7级大震的最长间隔时间。另外,结合其它的地震学条件分析,认为西藏的喜马拉雅中南地区,尤其是察隅、桑日—申扎与聂拉木是未来1~3年内发生大震的危险地域。
Xizang lies in the contact area of India plate and Eurasia plate,is an area of strong earthquake occurrence.It has not earthquake with Ms≥7.0 in 23 years since Shenzha earthquake with Ms7.3 on Jul.14,1973.The author has discussed the seismological conditions,and thought that middle-south of Himalaya area,especially Chayu、Sangri-Shenzha and Nielamu area,is a strong earthquake risk region in 1~3 years.
出处
《高原地震》
1998年第4期18-23,共6页
Plateau Earthquake Research
关键词
强震原地复发
强震活动周期
强震迁移
地震条带
Strong earthquake occurrence in situ Strong earthquake active period Strong earthquake migration Earthquake belt