摘要
利用三峡数字地震台网的数字记录 ,反演了 2 0 0 1年 10月 11日湖北省秭归 (东经 110 .4° ,北纬 30 .9°)ML3.6地震的参数 ,同时得到了三峡地区的地壳速度结构。反演得到的三峡地区的地壳速度模型和以前在该地区利用人工和天然地震获得的速度模型基本一致。该地震发生在走向为NE ,倾向为NW的断层上 ,地震主要产生以滑动为主的错动 ,持续时间从开始到结束约为 0 .16s。这次地震断层面的长度约 780m ,宽度约 330m ,滑动量约为4 1.9cm。
Using the records of digital seismostation network in the Three Gorges area, we inverted the parameter of an earthquake(\%M\%\-L3.6) that took place in Zigui, Hubei( 110.4°E, 30.9°N) on 11 October, 2001 and obtained the crustal velocity structure in the Three Gorges zone at the same time.The crustal velocity model is similar to the results calculated through the artificially and natural earthquakes before.The earthquake took place on a fault which has NE tendency and NW trend. The earthquake engendered a movement which has mainly slippage of horizon. The earthquake persisted about 0.16 second from beginning to end. The fault plane of the earthquake has 780 m length and 330 m width and the slippage has the length of about 41.9 cm.
出处
《大地测量与地球动力学》
CSCD
2002年第4期92-96,共5页
Journal of Geodesy and Geodynamics
