滇黔地区钻孔应变观测记震能力研究  

Research on the earthquake responding ability of borehole strain observation in Yunnan-Guizhou region,China

作　　者：师娅芳 孙宗强 师家升[3] 李鹏 王琳 

机构地区：[1]贵州省贵阳基准地震台,贵阳550018 [2]云南省水富县防震减灾局,云南水富657800 [3]云南大学经济学院,昆明650091 [4]辽宁省营口地震台,辽宁营口115101

出　　处：《国际地震动态》2015年第1期8-14,31,共8页Recent Developments in World Seismology

摘　　要：使用2008～2011年 MW 6．0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。Based on the 2008~2011 MW≥6.0 earthquake catalog data,coseismic effects recorded by Guiyang ,Zhaotong ,Tengchong ,Yongsheng ,Lijiang borehole strain observation＆amp;nbsp;stations are analyzed statistically.Earthquake recording ability and responding region are al-so 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 re-cording ability can record abnormal earthquake precursors in broader regions.

关 键 词：滇黔地区 钻孔应变观测 地震台站 记震能力 统计预测 

分 类 号：P315.72[天文地球—地震学]