地震地磁观测与研究2024，Vol.45Issue(1)：56-62,7.DOI:10.3969/j.issn.1003-3246.2024.01.008
南北地震带历史地震与岩石圈磁场空间分布特征分析
Analysis of historical earthquakes in north-south seismic belt and characteristics of spatial distribution of lithospheric magnetic field
摘要
Abstract
Using the mobile geomagnetic vector observation data of the north-south seismic belt from the year of 2016 to 2020,combined with the MS≥5.0 earthquake that occurred in the survey area from June 1,2017 to July 1,2021,the spatial distribution of the lithospheric magnetic field and the characteristics of earthquakes in the 2015.0 era in the region were analyzed and summarized.The results indicate that most earthquakes with MS≥5.0 in the north-south seismic belt region exhibit clear positional characteristics in the lithospheric magnetic field,especially near the"0"value line and the weakening of the horizontal vector H amplitude,which are prone to moderate to strong earthquakes in the north-south seismic belt region.Special attention should also be paid to the high gradient zone and the horizontal vector turning towards these positions in the H direction.关键词
南北地震带/流动地磁/岩石圈磁场/水平矢量H/异常特征Key words
north-south seismic zone/mobile geomagnetism/lithosphere magnetic field/horizontal vector H/abnormal features引用本文复制引用
赵慧琴..南北地震带历史地震与岩石圈磁场空间分布特征分析[J].地震地磁观测与研究,2024,45(1):56-62,7.基金项目
河北省地震科技星火计划(项目编号:DZ2021121500001) （项目编号:DZ2021121500001）
