伽师地震与区域断层活动研究

英文篇名：ON JIASHI EARTHQUAKES AND RECENT FAULT ACTIVITYIN SOUTHERN TIANSHAN MOUNTAIN AREA
中文刊名：大地测量与地球动力学
英文刊名：Crustal Deformation and Earthquake
作者：牛安福 ; 王琪 ; 江在森 ; 张晶 ; 延旭东
英文作者：Niu Anfu{1)} ; Wang Qi{2)} ; Jiang Zaisen{1)} ; Zhang Jing{1)} and Yan Xudong{1)} ; 1) Center for Analysis and Prediction ; CSB ; Beijing1000362) Institute of Seismology ; CSB ; Wuhan430071
中文关键词：伽师地震 ; 断层活动 ; 地震预测
英文关键词：Jiashi earthquake ; fault activity ; earthquake predictionDISCUSSION OF KUNLUN MOUNTAIN LARGE EARTHQUAKE AND RELATED ANOMALIES OF CRUSTAL DEFORMATION$$$$ Bo Wanju ; Zhang Zusheng and Guo Liangqian(No.1 Crustal Deformation Monitoring Center ; CSB ; Ti
出版日期：2003-02-28
机构：中国地震局分析预报中心,中国地震局地震研究所,中国地震局分析预报中心,中国地震局分析预报中心,中国地震局分析预报中心北京100036 ,武汉430071 ,北京100036 ,北京100036 ,北京100036
年：2003
期：01
出版单位：大地测量与地球动力学

摘要

利用GPS、连续倾斜和地震活动性资料分析了伽师地区构造活动的特点和伽师强震群的动力背景。结果表明 :在印度洋板块的挤压下 ,塔里木盆地的右旋俯冲运动是造成南天山地区地震活动的主要原因 ;1996年 3月 19日伽师阿图什 6 .7级地震 ,强烈地影响了该地区块体由向西南倾斜转向北西向倾斜 ,并可能成为诱发伽师地区强震群活动的主要动力因素。利用 1998年和 1999年对该地区GPS测量的结果 ,给出了该地区断层活动的水平。
On the basis of the data of GPS, continuous tilt and seismic activity we researched the tectonic characteristics in southern Tianshan mountain area and dynamic background of 1997 Jiashi earthquakes.It is demonstrated that main control factor for seismic activity in southern Tianshan mountain area is the right-lateral underthrust of Tarim basin and the Atushi earthquake %M%s6.7,occurred on 19 Marth,1996,made the Tarim basin tilt turns from SW to NW and triggers possibly to the Jiashi earthquakes.Using GPS observations carried out in 1998 and 1999,we calculated the level of fault activity in this region.Comparing it with the real seismic activity,we proposed the feasibility of seismic risk analysis with monitoring the fault movement.

引文

1　XuYi.OntheMohosurfaceanditsmechanisminTianshanMounttain[J].InlandEarthquake,1997,11(3):202-211.(inChinese)
    2　LuGuilin,HanJingandChenPeishan.Onthecharacteris ticsofbackgroundstressfieldinsouthernTianshanMoun tain[J].InlandEarthquake,1997,11(3):212-217.(inChinese)
    3　ShiGenhua.Anewapproachofnumericalanalysisfornon continuousdeformation[M ].Beijing:SciencePress,1993.(inChinese)
    4　JiangZaisen,ZhangXi,ChenBing,etal.Ontherecentgroundmovementandstress strainfieldinnorthChina[J].JofGeophysics,2000,43(5).(inChinese)
    5　HeZhen,WangCheng,NiuAnfu,etal.Primarystudyonthesimulationofgroundstressfieldevolution[J].CrustalDeformationandEarthquake,2000,20(1):1-7.(inChi nese)
    6　HuangLirenandGuGuohua.Theoryonthestaticdisloca tion[M].Beijing:SeismicPress,1982.(inChinese)
    7　Matsu’uraM .Inversionofgeodeticdata,part1:Mathemati calformulation[J].JPhys,Earth,1977,25,69-90.
    8　XieKexin,etal.Optimum[M].Tianjinuniversitypublish er,1998,99-139.
    9　NiuAnfu,WangQiandqiaoXuejun.OnthequantitativeanalysisforfaultmovementbasedonthebothofGPSandtiltdata[J].CrustalDeformationandEarthquake,2000,20(2):30-37.(inChinese)