水平摆观测中多次重现异常的初步分析  

Preliminary Analysis of Multiple Recurrence Anomalies in Horizontal Pendulum Observation

作　　者：张红秀[1,2] 张聪聪[1,2] 徐洁[1,2] Zhang Hong-xiu;Zhang Cong-cong;Xu Jie(Linfen Central Seismic Station of Shanxi Seismological Bureau,Linfen Shanxi 041000,China;National Continental Rift Valley Dynamics Observatory of Taiyuan,Taiyuan,Shanxi 030025,China)

机构地区：[1]山西省地震局临汾中心地震台,山西临汾041000 [2]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025

出　　处：《山西地震》2019年第2期1-3,11,共4页Earthquake Research in Shanxi

摘　　要：文章通过对临汾中心地震台水平摆观测中记录到的“两分向同步转向、大幅倾变”异常进行统计分析,对与其对应地震的相关性进行探讨,初步认为此类异常是一种短临震兆异常,与中、强远震相对应,发震时间多为异常转向后2~20d。The anomalies of "two-way synchronous steering and large-scale dipping" recorded in horizontal pendulum observation at Linfen Central Seismic Station are analyzed statistically,and the correlation between them and earthquakes is discussed.It is preliminarily considered that this kind of anomalies is a short-impending earthquake precursor anomaly,corresponding to moderate and strong distant earthquakes.The earthquake occurrence time is usually 2~20 days after the turning of the anomalies.

关 键 词：短期预报 数字水平摆 异常图像 

分 类 号：P315.725[天文地球—地震学]