基于高频GNSS的2014年2月12日于田M_S7.3地震的同震位移研究  

RESEARCH ON CO-SEISMIC DISPLACEMENT OF YUTIAN EARTHQUAKE WITH M_S7.3 BASED ON THE HIGH FREQUENCY DATA OF GNSS

作　　者：李桂荣[1] 赵斌 李瑞[1] 李杰[1] 程瑞忠[1] 王晓强[1] 刘代芹[1] 陈丽[1] 帕尔哈提.再努拉 艾力夏提.玉山 陈述江[1] 

机构地区：[1]新疆维吾尔自治区地震局,新疆乌鲁木齐830011 [2]湖北省地震局,湖北武汉430071

出　　处：《内陆地震》2014年第2期142-146,共5页Inland Earthquake

基　　金：新疆维吾尔自治区自然科学基金(2012211B56)资助

摘　　要：于田MS7.3地震后,第一时间收集到震中350 km范围内4个基准站1Hz高频数据,并用TRACK模块进行解算,研究结果发现,①距离震中54 km处的于田基准站同震变化最明显,尤其是东西分量,变化幅度达52.5±11 mm,超过解算精度3倍中误差;②于田基准站东西分量出现变化量值最大的时间在震后1 min内;③北南分量变化不大。After the Yutian earthquake with Ms7.3, the author collected 1 Hz high frequency data of 4 reference stations within 350 kilometers around the epicenter in the first time, and calculated the GNSS data with TRACK module. The results showed that （ 1 ） the coseismic displacement of EW component of Yutian is significant, which is about 54 kilometers from the epicenter; the most obvious change is about 52.5± 11 mm, more than three times the meansquare error of calculating precision. （2） In Yutian reference station, the biggest variation in EW component appeared 1 minute after the earthquake. （3） It is not obvious in NS component of Yutian station.

关 键 词：高频GNSS 于田Ms7 3地震 同震位移 

分 类 号：P315.9[天文地球—地震学]