泰安地震台形变仪器映震能力统计分析  

Statistical Analysis on Earthquake-reflecting Capacity of Deformation Meters at Taian Station

作　　者：于庆民[1] 卢双苓[1] 郝军丽[2] 李惠玲[1] 闫德桥[3] 孙豪 李希亮[2] 

机构地区：[1]山东省地震局泰安基准地震台,山东泰安271000 [2]山东省地震局,山东济南250014 [3]山东省地震局安丘地震台,山东安丘262100 [4]烟台市地震局,山东烟台264000

出　　处：《地震研究》2015年第3期408-415,517,共8页Journal of Seismological Research

基　　金：中国地震局"三结合"课题(SJH201301);山东省地震局重点科研基金(JJ1302);山东省地震局科研基金项目(JJ1406Y)联合资助

摘　　要：通过对泰安地震台6套形变仪器的映震能力进行研究,认为形变仪器映震能力较强,对全球M≥7地震均有记录,同震变化幅度与震级成正比、与震中距成反比。这6套形变仪器对远震和近震的反应能力有差异:垂直摆与重力仪对小震的记录能力最强,其次是体应变、水管仪、水平摆和伸缩仪;伸缩仪记录近震的能力最弱,对接近6级的地震才有反映;而重力仪对小震和远震均有很强的映震能力,涵盖了垂直摆、水管仪、体应变和水平摆所能记录到的地震范围。The statistics on six sets of deformation instrument at Taian Fiducial Seismic station show s that the deformation instrument had good earthquake-reflecting ability,which could record M ≥7 global earthquakes,and the recording amplitude of the coseismic changes was proportional to the magnitude,but that was inversely proportional to the epicentral distance. The earthquake-reflecting ability of six different deformation instruments to distance earthquakes and near earthquakes was different： the recording ability of the gravimeter and the vertical pendulum tilt meter to small earthquakes was the strongest,follow ed by the volumetric borehole strain-meters,the water tube tilt meter,the horizontal pendulum tilt meter and extensometer. The recording ability of the extensometer to near earthquakes was weakest,and only can record close to M6. 0 earthquake. The earthquake-reflecting ability of the gravimeter to both small earthquakes and distance earthquakes was stronger,and can include all range of earthquakes recording which can be recorded by the vertical pendulum tilt meter,the water tube tilt meter,the volumetric borehole strain-meters and the horizontal pendulum tilt meter.

关 键 词：泰安地震台 形变仪器 映震能力 同震变化 

分 类 号：P315.6[天文地球—地震学]