倾斜仪在地震定位中的应用  

Application of Tiltmeter in Earthquake Location

作　　者：刘佳敏[1] 尹继尧[1] 任烨[1] 尹欣欣 

机构地区：[1]上海市地震局,上海200062 [2]甘肃省地震局,甘肃兰州730000

出　　处：《地震研究》2013年第2期219-223,264,共5页Journal of Seismological Research

基　　金：上海市综合深井项目与地震科技星火计划项目(XH12017Y)资助

摘　　要：利用上海综合深井观测系统中两分向倾斜仪记录的25Hz采样观测数据,与相邻台站地震仪对东海MS7.0中源地震进行地震定位结果对比分析。结果显示发震时刻最大误差仅0.06s,震中位置最大误差5.1km,并且定位结果都保持了较小的定位残差。因此高采样率深井地倾斜仪记录的观测数据可以用于地震的定位分析。We compared earthquake location of the Ms7.0 intermediate-focus earthquake in East China Sea obtained by the 25 Hz sampling observation data recorded by 2-component tiltmeter installed in comprehensive seismic observation system in deep borehole in Shanghai with the observation data recorded by seismometer of seismic stations in its adjacent area. The results show that the maximum error of the origin time and the epicenter location is only 0. 06 s and 5.1 km respectively, and the residuals of earthquake location results is smaller in the earthquake loca- tion by using these two observation data, which shows that the observation data recorded by tiltmeter in high sample rate in deep borehole can be used as the earthquake location analyze.

关 键 词：深井观测系统 高采样率 倾斜仪 地震仪 地震定位 

分 类 号：P318.6[天文地球—固体地球物理学]