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1987年1月8日02时18分,在甘肃省甘南藏族自治州迭部县境内发生5.8级地震,四川省若尔盖县铁布区强烈有感。四川省地震局即派出考察组日夜兼程,奔赴现场,进行考察和监视。先期到达震区考察的甘肃省地震局考察队,为我们提供了有关震害情况和帮助。这次地震,微观震中在东经103°18′,北纬34°13′,即迭部县祖爱西北2.7千米处,宏观震中在迭部县城北东22千米解放附近。微观震中与宏观震中相差2千米。震级为5.8级,震源深度14千米。根据四川省地震局综合研究分析室资料:震源机制解,节面Ⅰ方位42.5°,倾
On January 8, 1987, at 02:18, a 5.8-magnitude earthquake struck Diebu County in Gannan Tibetan Autonomous Prefecture, Gansu Province. There was a strong feeling in Tiebu District, Zoige County, Sichuan Province. Seismological Bureau of Sichuan Province sent inspection teams day and night, went to the scene for inspection and surveillance. Gansu Provincial Seismological Bureau expedition team arrived in advance to investigate the earthquake area and provided us with information on the earthquake damage situation and help. The epicenter and epicenter were 103 ° 18’E and 34 ° 13’N, ie, 2.7 km northwest of Diebu County, and a macro epicenter near the liberation of 22 km to the north east of Diebu County. The difference between microscopic epicenter and macro epicenter is 2 km. Magnitude 5.8, focal depth 14 km. According to the data from the Comprehensive Research and Analysis Office of the Seismological Bureau of Sichuan Province: focal mechanism solution, section Ⅰ orientation 42.5 °, dip