夏县断层气氢高值异常探讨  

Exploration of High Hydrogen Anomaly in Fault Gas of Xia County

作　　者：常姣[1,3] 杨静[2,3] 黄春玲[1,3] CHANG Jiao;YANG Jing;HUANG Chunling(Yuncheng Seismic Monitoring Center Station,Shanxi Earthquake Agency,Xia County,Shanxi 044400,China;Linfen Earthquake Monitoring Center Station of Shanxi Earthquake Agency,Linfen,Shanxi 041000,China;National Continental Rift Valley Dynamics Observatory of Taiyuan,Taiyuan,Shanxi 030025,China)

机构地区：[1]山西省地震局运城地震监测中心站,山西夏县044400 [2]山西省地震局临汾地震监测中心站,山西临汾041000 [3]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》2024年第2期19-24,共6页Earthquake Research in Shanxi

基　　金：山西省地震局青年项目(SBK-2310);山西省地震局创新团队“山西南部区域中短期异常与地震趋势判定研究”;中国地震局监测、预报、科研三结合课题(3JH-202402012)。

摘　　要：运用2010—2023年夏县断层气氢浓度观测数据,分析其异常变化与地震活动的关联性,结合异常时段的震源机制解、GPS基线构建的山西南部构造应力场、地壳垂直形变特征,解释断层气氢浓度变化与区域构造活动的关系,分析认为夏县断层气氢测值自2022年6月出现的高值异常可能与地下应力场调整相关。Using the observation data of fault gas hydrogen concentration in Xia County from 2010 to 2023,this paper analyzes the correlation between abnormal changes and seismic activity.Combining the source mechanism solution during the abnormal period,the tectonic stress field in southern Shanxi constructed by GPS baseline,and the vertical deformation characteristics of the crust,the relationship between changes in fault gas hydrogen concentration and regional tectonic activity is explained.The analysis suggests that the high value anomaly of fault gas hydrogen measurement in Xia County since June 2022 may be related to the adjustment of underground stress field.

关 键 词：震源机制解 异常 地壳应力场 断层气氢观测 

分 类 号：P315.63[天文地球—地震学]