云南德宏法帕井数字化观测资料动态及前兆异常特征分析  

Analysis of observation data dynamics and precursor anomalies of digital observation data of the Dehongfapa well

作　　者：王金霞 吴玉卫 周洋 王洪英 钟开荣 Wang Jinxia;Wu Yuwei;Zhou Yang;Wang Hongying;Zhong Kairong(Dehong Dai and Jingpo Autonomous Prefecture Earthquake Prevention and Disaster Reduction Administration,Yunnan Mangshi 678400,China)

机构地区：[1]德宏傣族景颇族自治州防震减灾局,云南芒市678400

出　　处：《地震科学进展》2025年第4期209-217,共9页Progress in Earthquake Sciences

摘　　要：以2008—2023年德宏法帕井水位、水温观测资料为研究对象,整理分析观测资料动态变化、固体潮形态、同震响应及地震前兆异常特征等。结果显示,德宏法帕井水位固体潮汐形态清晰,年变规律为明显的夏高冬低型;水温年变幅度均不足0.01℃,呈趋势平稳型;井水位、水温同震响应较为明显,对于研究区域内MS≥6.0地震同震响应比达78.6%;井水位、水温能记录到部分明显的前兆异常现象,时间上主要以短临异常为主,空间上以近震和地方震为主。通过对德宏法帕井流体观测资料进行系统的整理和分析,发现德宏法帕井含水层有良好的弹性,观测资料能够很好的反应地壳的应力应变,是较为理想的流体观测井,可为后续开展地震预测预报提供一定的科学依据。Based on observation data of the water level and water temperature in the Dehongfapa well from 2008 to 2023,we analyzed the characteristics of the dynamic change of observation data,pattern of earth tides,coseismic response,and earthquake precursor anomaly.The results showed that the water level of the Dehongfapa well has a clear pattern of earth tides and that the annual variation is obvious highness of level in summer and lowness in winter.The annual variation of water temperature was less than 0.01℃,indicating a stable trend type.The coseismic response of the well water level and water temperature was obvious.The coseismic response ratio of MS≥6.0 earthquakes in the study area was 78.6%.The well water level and water temperature can record some obvious precursor anomalies,mainly characterized by short-term anomalies in time and proximal and local earthquakes in space.We systematically studied,cleaned,and analyzed the fluid observation data of the Dehongfapa well and found that the aquifer of the Dehongfapa well has good elasticity.The observation data of the well can effectively reflect the underground stress and strain change,so the Dehongfapa well is an ideal fluid observation well.It can provide information useful for earthquake prediction.

关 键 词：德宏法帕井 水位 水温 前兆异常 同震响应 

分 类 号：P315.63[天文地球—地震学]