【摘要】 使用2008~2011年MW6.0以上地震目录资料,统计滇黔地区贵阳、昭通、永胜、腾冲和丽江5个地震台的钻孔应变观测资料记录同震效应的情况,进行记震能力统计分析,给出了各台站钻孔应变观测的记震响应区域及记震能力图。根据地质构造及历史地震活动情况,对各观测台站记震能力进行了对比分析。结果表明,井孔位于稳定块体及历史地震活动少的台站记震能力强,记录的同震阶变现象少;反之则相反。通过记震能力分析可知,记震能力强的台站更有可能记录到更广范围的地震前兆异常现象。更多还原

【Abstract】 Based on the 2008~2011 MW≥6.0 earthquake catalog data,coseismic effects recorded by Guiyang,Zhaotong,Tengchong,Yongsheng,Lijiang borehole strain observation stations are analyzed statistically.Earthquake recording ability and responding region are also analyzed.Results show that stations(observation boreholes)located in stable geological block where earthquake rarely happened in history have strong earthquake recording ability,recording less coseismic order change;and vice versa.Stations with strong earthquake recording ability can record abnormal earthquake precursors in broader regions.更多还原