分量钻孔应变仪记录的汶川、芦山强震前兆应变异常

英文篇名：Strain Anomalies Before Wenchuan and Lushan Earthquakes Recorded by Component Borehole Strainmeter
中文刊名：科技导报
英文刊名：Science & Technology Review
作者：池顺良
英文作者：CHI Shunliang Key Laboratory of Computational Geodynamics of Chinese Academy of Sciences ; College of Earth Science ; University of Chinese Academy of Sciences ; Beijing 100049 ; China
中文关键词：芦山地震 ; 汶川地震 ; 地震预报 ; 钻孔应变 ; 数据自检 ; 地震前兆
英文关键词：Lushan earthquake ; Wenchuan earthquake ; earthquake prediction ; borehole strain ; data self-test ; earthquake precursors
出版日期：2013-04-28
机构：中国科学院计算地球动力学重点实验室;中国科学院大学地球科学学院;
年：2013
期：12
出版单位：科技导报

摘要

2007年全国布设了由40台4分量钻孔应变仪组成的分量应变监测网络。位于四川姑咱地震台的应变仪先后记录了汶川和芦山强震孕震过程中的潮汐畸变应变异常现象。这些异常变化基本满足地震前兆的3项判据,故被初步认定是这两次强震孕育过程中的应变前兆。本研究对相关记录资料进行了分析,以期为后续强震预测和预报研究提供参考。
China Earthquake Administration has installed a strain monitoring network of 40 sets four-component borehole strainmeters.One strainmeter located in Sichuan Guzan seismic station has recorded distinct tidal distortion and strain abnormity during the seismogenic process of Wenchuan and Lushan strong earthquakes.These abnormal changes basically met the three criteria of earthquake precursors,thus they were considered to be strain precursor of the seismogenic process of two strong earthquakes.In this paper,the related record information was analyzed,which would provide reference for the subsequent strong earthquake prediction.

引文

[1]邱泽华,周龙寿.用超限率分析法研究汶川地震的前兆应变变化[J].大地测量与地球动力学,2009,29(4):1-9.Qiu Zehua,Zhou Longtao.Journal of Geodesy and Geodynamics,2009,29(4):1-9.
    [2]邱泽华,张宝红,唐磊,等.汶川地震前姑咱台观测的异常应变变化[J].中国科学D辑:地球科学,2010,40(8):1031-1039.Qiu Zehua,Zhang Baohong,Tang Lei,et al.Science in China,Series D:Earth Sciences,2010,40(8):1031-1039.
    [3]刘琦,张晶.S变换在汶川地震前后应变变化分析中的应用[J].大地测量与地球动力学,2011,31(4):6-9.Liu Qi,Zhang Jing.Journal of Geodesy and Geodynamics,2011,31(4):6-9.
    [4]邱泽华,石耀霖.地震造成远距离应力阶变的观测实例[J].中国科学D辑:地球科学,2003,33(S1):60-64.Qiu Zehua,Shi Yaolin.Science in China,Series D:Earth Sciences,2003,33(S1):60-64.
    [5]池顺良,武红岭,骆鸣津.钻孔应变观测中潮汐因子离散性与各向异性原因探讨[J].地球物理学进展,2007,22(6):1746-1753.Chi Shunliang,Wu Hongling,Luo Mingjin.Progress in Geophysics,2007,22(6):1746-1753.
    [6]池顺良.日本9级大震前我国钻孔应变网测到两起地块强烈受压事件[J].地球物理学进展,2011,26(5):1583-1586.Chi Shunliang.Progress in Geophysics,2011,26(5):1583-1586.