山西地区水管仪和伸缩仪在中强地震前的异常浅析

英文篇名：Primary Analysis on Anomalies of Water Pipe Tiltmeter and Extensometer in Shanxi before Medium and Strong Earthquakes
中文刊名：山西地震
英文刊名：Earthquake Research in Shanxi
作者：沈晓松 ; 冯建琴 ; 程冬焱 ; 董甲弟 ; 邓建梅
英文作者：SHEN Xiao-song1 ; 3 ; FENG Jian-qin2 ; 3 ; CHENG Dong-yan3 ; 4 ; DONG Jia-di2 ; 3 ; DENG Jian-mei5(1.Taiyuan Reference Seismological Station of Earthquake Administration of Shanxi Province ; Taiyuan ; Shanxi 030025 ; China ; 2.Linfen Central Seismological Station of Earthquake Administration of Shanxi Province ; Linfen ; Shanxi 041000 ; China ; 3.National Continental Rift Valley Dynamics Observatory of Taiyuan ; Taiyuan ; Shanxi 030025 ; China ; 4.Earthquake Administration of Shanxi Province ; Taiyuan ; Shanxi 030021 ; China ; 5.Suzhou Science and Technology Co. ; Ltd for Seismic Safety Assessment ; Suzhou ; Jiangsu 215128 ; China)
中文关键词：地倾斜 ; 应变 ; 固体潮 ; 异常形态 ; 临震异常
英文关键词：crustal tilt ; strain ; solid tide ; anomaly shape ; impending earthquake anomaly
出版日期：2012-01-15
机构：山西省地震局太原基准地震台;太原大陆裂谷动力学国家野外观测研究站;山西省地震局临汾中心地震台;山西省地震局;苏州市地安地震安全评估科技有限公司;
年：2012
期：01
出版单位：山西地震

摘要

利用常规分析方法年变曲线、矢量图曲线分析研究了山西地区MS≥4.0和国内外MS≥7.0地震前地倾斜、地应变资料所出现的短期和临震异常变化,统计了异常开始至发震时间、异常持续时间、异常结束至发震时间及异常形态等,通过对山西地倾斜、地应变资料的日均值做一阶差分分析,并对典型震例进行剖析得出了山西地区(近场)4.0级以上地震和远场7.0级强地震前地倾斜、地应变的短期、临震异常特征。
Short-term and imminent earthquake anomaly variation appeared in crustal tilt and ground strain data before the MS≥4.0 earthquakes in Shanxi and the MS≥7.0 earthquakes at home and aboard are studied by using the routine analysis methods of yearly variation and vector graph.Time from anomaly starting to earthquake occurring,anomaly lasting time,time from anomaly ending to earthquake occurring and anomaly shape etc.are calculated.Through the first order differential analysis on the daily mean values of crustal tilt and ground strain data of Shanxi.Based on anatomy of typical earthquake events,short-term and imminent earthquake anomaly characteristics of crustal tilt and ground strain before the MS≥4.0 earthquakes in Shanxi(near field) and the MS≥7.0 earthquakes in far field are figured out.

引文

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