2023年2月6日土耳其两次7.8级地震引起的井水位同震响应对比分析

doi:10.12196/j.issn.1000-3274.2024.03.007

摘要/Abstract

摘要： 2023年2月6日, 土耳其发生的两次7.8级地震引起了新疆乌鲁木齐地区新04井、新10井和新11井的同震响应, 但同震变化形态各有不同。本文对比分析了这三口观测井水位的同震响应特征, 探讨了地震引起的井水位同震响应机理。结果显示, 本研究中的三口观测井水位的同震响应类型有振荡、同震下降和同震上升三种。其中, 新10井表现为振荡, 而新04井和新11井则分别表现为同震下降和上升, 表明井水位同震变化机理的复杂性。两次地震在同一观测井的同震响应形态一致, 不同观测井水位同震变化与井孔所在位置的渗透性结构改变有关。

关键词: 井水位, 同震响应机理, 潮汐因子, 相位滞后, 2023年土耳其7.8级地震

Abstract: The two M7.8 earthquakes in Türkiye on February 6, 2023, caused coseismic responses in Xin 04 well, Xin 10 well, and Xin 11 well in Urumqi, Xinjiang, but their coseismic variation patterns were different. In this paper, we compare and analyze the coseismic response characteristics of water levels in the three observation wells, and discuss the earthquake-induced changes in well water levels and their coseismic response mechanisms. The results illustrate three types of coseismic responses: oscillation at Xin 10 well, coseismic decrease at Xin 04 well, and coseismic increase at Xin 11 well, which indicates the complexity of the mechanisms of coseismic changes in well water levels. Two M7 earthquakes caused the same type of coseismic response at the same well, and the coseismic changes of water levels of different observation wells are related to changes in the permeability structure where the well boreholes are located.

Key words: Well water level, Coseismic response mechanism, Tidal factor, Phase lag, The 2023 Türkiye M7.8 earthquake

中图分类号:

P315.7

梁卉, 高小其, 颜龙. 2023年2月6日土耳其两次7.8级地震引起的井水位同震响应对比分析[J]. 地震, 2024, 44(3): 96-107.

LIANG Hui, GAO Xiao-qi, YAN Long. Comparison and Analysis of Coseismic Response of Well Water Level Caused by Two M7.8 Earthquakes in Türkiye on February 6, 2023[J]. EARTHQUAKE, 2024, 44(3): 96-107.

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