2023年土耳其7.8级强震前烟台台伸缩仪EW分量固体潮畸变  

Earth Tide Distortion Recorded by Tensometer at Yantai Station before M7.8 Earthquakes in Türkiye,2023

作　　者：郝军丽[1] 朱成林[1] 张正帅[1] 赵洋 王合乾 HAO Junli;ZHU Chenglin;ZHANG Zhengshuai;ZHAO Yang;WANG Heqian(Shandong Earthquake Agency,20 East-Wenhua Road,Ji’nan 250014,China;Yantai Earthquake Monitoring Center Station,17 Nanshangou,Yantai 264000,China)

机构地区：[1]山东省地震局,济南市文化东路20号,250014 [2]烟台地震监测中心站,山东省烟台市南山沟17号,264000

出　　处：《大地测量与地球动力学》2023年第12期1313-1316,1320,共5页Journal of Geodesy and Geodynamics

基　　金：中国地震局地震科技星火计划(XH21018)。

摘　　要：烟台台SS-Y伸缩仪EW分量在2023-02-06土耳其7.8级双震前2 d开始出现急速上升趋势变化,至6日凌晨开始下降,变化幅度达到9.58×10^(-8),震后维持快速上升趋势。对烟台台伸缩仪稳定性指标进行判定,认为仪器稳定;经现场核实,未发现环境干扰。最后对烟台台伸缩仪固体潮畸变特征进行分析,并基于畸变与远震前兆的关系进行初步探讨。The EW component of SS-Y tensometer at Yantai station began to show a rapid upward trend 2 days before the 2023-02-06 Türkiye M7.8 double earthquakes,and began to turn downward in the early morning of 2023-02-06,with a range of 9.58×10^(-8),and maintained a rapid upward trend after the earthquakes.The stability index of Yantai tensometer is judged and it is considered that the instrument is stable.After on-site verification,no environmental interference was found.Finally,the characteristics of the earth tide distortion are analyzed,and the relationship between the distortion and the distant earthquake precursor is discussed.

关 键 词：烟台地震台 伸缩仪 EW分量 固体潮畸变 土耳其地震 

分 类 号：P315[天文地球—地震学]