2019年以来云南定点形变异常分析  

Analysis of Fixed-Point Deformation Anomalies in Yunnan Since 2019

作　　者：张华英 高琼 杨建文 杨树锋 杨芬 ZHANG Huaying;GAO Qiong;YANG Jianwen;YANG Shufeng;YANG Fen(Dali Center of China Earthquake Science Experimental Site,Dali 671000,China)

机构地区：[1]中国地震科学实验场大理中心,云南大理671000

出　　处：《华南地震》2024年第3期33-39,共7页South China Journal of Seismology

基　　金：中国地震局地震科技星火计划项目(XH23034YA);云南省地震局地震科技专项基金(2023ZX01)联合资助。

摘　　要：定点形变是重要的前兆观测手段,对2019年以来云南省内出现的定点形变群体异常进行了梳理,总结异常特点:异常台站分布广,大幅度,异常时间同步,持续时间长。结合地震活动特点进行分析讨论,认为群体异常和地震动活动有一定吻合性,对未来云南的震情研判有参考意义。Fixed-point deformation is an important precursor observation method.This article summarized the anomalies of fixed-point deformation groups that have occurred in Yunnan Province since 2019 and analyzed the characteristics of the anomalies as follows:The anomalies are distributed in various stations,with significant amplitude,synchronous time,and long duration.Based on the analysis and discussion of the characteristics of seismic activities,it is believed that there is a certain consistency between group anomalies and seismic activities,which has reference significance for future seismic situation analysis and judgment in Yunnan.

关 键 词：云南 定点形变 异常 

分 类 号：P315.72[天文地球—地震学]