山西四分量钻孔应变观测站网监测效能评估  

Evaluation of the Monitoring Effectiveness of the Four-ComponentBorehole Strain Observation Station Network in Shanxi Province

作　　者：李颖[1,2] 王晶晶[3] 陈慧 魏娅玲[4] LI Ying;ang Jinging;CHEN Hui;EI Yling(Shanxi Earthquake Agency,Shanxi Taiyuan 030021,China;National Field Scientific Observatory for Continental Rift Valley Dynamics,Shanxi Taiyuan030025,China;Jinzhou Earthquake Monitoring Central Station of Liaoning Earthquake Agency,Liaoning Jinzhou 124010,China;Sichuan Earthquake Agency,Sichuan Chengdu 610041,China)

机构地区：[1]山西省地震局,山西太原030021 [2]山西省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 [3]辽宁省地震局锦州地震监测中心站,辽宁锦州124010 [4]四川省地震局,四川成都610041

出　　处：《四川地震》2025年第2期33-39,56,共8页Earthquake Research in Sichuan

基　　金：中国地震局监测、预报、科研三结合课题(3JH-202401010)、中国地震局震情跟踪定向工作任务(2024010216);太原大陆裂谷国家野外科学观测研究站研究课题(NORSTY2022-04)。

摘　　要：山西省是全国建设四分量钻孔应变观测站最多的省份,为厘清其监测现状,为未来台网优化、仪器更新改造奠定基础,文章从观测背景、观测系统、观测数据质量三方面对山西省内四分量钻孔应变观测站网监测效能进行了全面评估。结果显示:70%以上的四分量钻孔应变观测站监测效能良好,运行状态稳定,数据连续可靠,可为地震监测预报研究提供有力的数据支持;其余不足30%的观测站或观测条件、场址不完全符合钻孔应变观测的技术要求,抗干扰能力较差,不利于地球物理异常信息的识别,或因观测仪器运维较差或数据质量不合格,制约了钻孔应变观测站为地震监测预报服务的能力。今后的站网优化评价中应予以全面清查与整理,以保证观测站网的监测预报效能充分发挥。Shanxi Province shows the largest number of four-component borehole strain observation stations in the country.To clarify the current monitoring status and provide the foundation for future network optimization and instrumental upgrades,we conducted a comprehensive assessment of the monitoring effectiveness of the four-component borehole strain observation stations in Shanxi,which was referred to the observing background,the observing system,and the quality of the observing data.The results suggest that more than 70%of the four-component borehole strain observation stations in Shanxi show good monitoring performance,with stable operation,continuous and reliable data,thus providing robust data support for earthquake prediction and forecasting research.

关 键 词：钻孔应变 观测站网 监测效能 评估 山西 

分 类 号：P315.7[天文地球—地震学]