2024年云南巍山Ms4.2地震前下关温泉水温变化特征分析  

ANALYSIS ON WATER TEMPERATURE VARIATION CHARACTERISTICS OF XIAGUAN HOT SPRING BEFORE THE Ms4.2 EARTHQUAKE IN WEISHAN,YUNNAN PROVINCE IN 2024

作　　者：李见 李庆 吴谋 邓嘉美[1] 焦港辉 LI Jian;LI Qing;WU Mou;DENG Jiamei;JIAO Ganghui(Yunnan Earthquake Agency,Kunming 650224,China)

机构地区：[1]云南省地震局,云南昆明650224

出　　处：《高原地震》2024年第2期7-11,共5页Plateau Earthquake Research

基　　金：云南省地震局青年基金课题(项目编号:2023K09);云南省重点研发计划(公共安全专项)(项目编号:202203AC100003)联合资助。

摘　　要：2024年4月19日云南巍山发生Ms4.2地震,震前下关温泉水温出现短期的急速下降。通过分析下关温泉水温下降原因及其与巍山Ms4.2地震关系显示:水温下降变化真实可靠;水温下降阶段,温泉Mg^(2+)含量升高,其余离子含量降低。认为下关温泉水温下降为周围水管破裂、表层冷水混入导致,对破裂水管进行处理后,水温迅速回升至下降前的正常动态水平,不是云南巍山Ms4.2地震前的前兆异常信息。On April 19,2024,an Ms4.2 earthquake occurred in Weishan,Yunnan.The water temperature of XiaGuan Hot Spring showed a short-term rapid decline before the earthquake.This paper systematically dis-cusses the reasons for the decline of water temperature in XiaGuan Hot Spring and its relationship with the Weishan Ms4.2 earthquake.The results show that:the change of water temperature drop is real and reliable,during the phase of decreasing water temperature,the Mg^(2+) content of hot springs increased and the rest of the ions decreased;the drop of water temperature in Xiaguan Hot Spring is caused by the rupture of the surround-ing water pipes and the mixing of cold water in the surface layer,after the broken water pipes were repaired,the water temperature quickly rose to the normal level before the temperature drop,and it is not the precursor anomalous information before the Ms4.2 earthquake of Weishan,Yunnan Provinc;On April 24,2024.

关 键 词：2024巍山Ms4.2地震 下关温泉 水温 低值变化 

分 类 号：P315.723[天文地球—地震学]