地震地磁观测与研究2025，Vol.46Issue(1)：102-108,7.DOI:10.3969/j.issn.1003-3246.2025.01.014
河北省曹妃甸地震台2024年3月数字电扰动异常分析
Analysis of digital electrical disturbance anomaly at Caofeidian Seismic Station,Hebei in March 2024
摘要
Abstract
Since March 3,2024,the NS and EW channels of the CNEM08-II type electrical disturbance instrument at Caofeidian Seismic Station have shown high-value pulse changes with increased background values,and the anomaly periods are consistent each day.Through the detection of the observation system and environmental investigation,various interference factors were ruled out.To identify the source of interference,on-site experiments and comparative observations were conducted for analysis.The results suggest that this anomaly was caused by the power supply interference from the pile driver motor during the reinforcement construction of the station's comprehensive building,and it is not an earthquake geophysical anomaly.关键词
电扰动/曹妃甸地震台/异常分析Key words
electromagnetic disturbance/Caofeidian Seismic Station/anomaly analysis引用本文复制引用
张志相,贾立峰,赵建明,孟令焕..河北省曹妃甸地震台2024年3月数字电扰动异常分析[J].地震地磁观测与研究,2025,46(1):102-108,7.基金项目
河北省地震局科技星火计划(项目编号:DZ20230315004) （项目编号:DZ20230315004）
