倾斜仪在地震定位中的应用
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
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 MS 7.0 intermediate-focus earthquake in East China Sea obtained by the 25Hz 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 location by using these two observation data,which show s that the observation data recorded by tiltmeter in high sample rate in deep borehole can be used as the earthquake location analyze.
引文
陈贵美,杨选,刘锦.2009.广东数字地震台网‘十五’系统的几种地震定位方法的定位效果分析[J].华南地震,29(1):69-78.
    卢双苓,王强,林秀娜.2011.汶川地震前泰安台摆式倾斜仪异常现象分析[J].大地测量与地球动力学,31(B06):19-23.
    施志龙.2011.地倾斜双轴垂直摆倾斜仪测量方法研究[J].地震地磁观测与研究,32(2):70-74.
    王强,孟建国,吕春帅.2011.VP型宽频带倾斜仪映震能力分析[J].地震地磁观测与研究,32(4):94-98.
    赵仲和,牟磊育.2005.单台地震自动定位网格搜索法及其MATLAB试验[J].地震地磁观测与研究,26(4):1-12.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心