利用差分法提取大同水管倾斜仪震前异常  

Extracting Precursory Anomalies of Datong Water Pipe Tiltmeter by Difference Method

作　　者：李秀英 邓海岩 任选民 LI Xiu-ying;DENG Hai-yan;REN xuan-min(Datong Seismological Bureau, Datong, Shanxi 037006, China;Tongche Company Observatory, Datong, Shanxi 037038, China;Tongmei No.1 Middle School Observatory, Datong, Shanxi 037003, China)

机构地区：[1]大同市地震局,山西大同037006 [2]同车公司观测站,山西大同037038 [3]同煤一中观测站,山西大同037003

出　　处：《山西地震》2020年第2期20-23,共4页Earthquake Research in Shanxi

基　　金：山西省地震局科研项目(SBK-1815)。

摘　　要：文章以同煤一中地倾斜观测数据为依据,收集整理1995-2017年晋冀蒙交界地区300 km范围内M5.0以上的地震目录,采用一阶、二阶差分法对同煤一中地倾斜观测数据进行系统分析研究。结果表明,该资料对晋冀蒙交界地区中强地震有一定的映震能力,可为今后分析预报工作提供一定的参考依据。Based on the observation data of ground tilt in Tongmei No.1 middle school,this paper collects and sorts out the seismic catalogue of M5.0 magnitude and above in the 300 km range of Shanxi-Hebei-Inner Mongolia border area from 1995 to 2017,and systematically analyzes and studies the observation data of ground tilt in Tongmei No.1 middle school by using the first-order and second-order difference methods.The results show that the data can reflect moderate and strong earthquakes in the border area of Shanxi,Hebei and Inner Mongolia to a certain extent,and can provide a judgment basis for the future analysis and prediction work.

关 键 词：形变观测 差分法 异常特征 同震效应 

分 类 号：P315.725[天文地球—地震学]