广东形变观测台网垂直摆倾斜仪同震响应特征

Co-seismic response characteristics of vertical pendulum tiltmeters in Guangdong Province

针对广东区域中小地震及中远强震的同震响应,统计分析2014年汕头、韶关、信宜地震台垂直摆倾斜仪记录的同震响应,发现除同震响应振幅与震级、震中距的关系符合一般规律外,3台仪器对不同区域、不同震级地震的同震响应具有不同特点和敏感性。

Since 2014,in the work of tracking and analysis to precursor data,the digital records of vertical pendulum tiltmeters have been frequently affected by geophysical events mainly including the co-seismic response to the small earthquakes in local region and moderate strong earthquakes far away.In this paper,statistical analysis to the co-seismic response of three vertical pendulum tiltmters in Shantou,Xinyi and Shaoguan shows that the amplitude has relationship with magnitude and epicenter distance.Besides,three instruments show different characteristics and sensibilities to earthquakes with different magnitude in different regions.