山东平原Ms5.5地震前岩石圈磁场异常变化及发震机理OA北大核心CSTPCD
Abnormal Variation of Lithospheric Magnetic Field before the Pingyuan Ms5.5 Earthquake in Shandong Province and Its Seismogenic Mechanism
基于冀鲁交界地区2020～2023年连续4期的流动地磁观测资料,分析区域岩石圈磁场时空变化特征及其与2023-08-06山东平原Ms5.5地震的关系,并结合岩石磁学的实验室结果和断层亚失稳理论,探讨平原地震前的亚失稳特征及发震机理.结果表明:1)研究区岩石圈磁场时空变化特征在平原地震前有较为明显的异常反映,2020～2023年震中附近始终存在水平矢量的弱化区,并随着时间推移,出现水平矢量的弱化区逐渐向震中逼近的现象;震中附近始终存在地磁总强度、磁…查看全部>>
Based on the mobile geomagnetic observation data of four consecutive periods from 2020 to 2023 in the border area of Hebei and Shandong,this paper analyzes the temporal and spatial variation characteristics of the regional lithospheric magnetic field and its relationship with the Pingyuan Ms5.5 earthquake on August 6,2023.Combined with the laboratory results of rock magnetism and the theory of fault meta-instability,it discusses the meta-instability characte…查看全部>>
张海洋
河北红山巨厚沉积与地震灾害国家野外科学观测研究站,河北省邢台市泉北西大街1540号,054000||河北省地震局保定地震监测中心站,河北省保定市天威中路206号,071000
地球科学
平原Ms5.5地震流动地磁岩石圈磁场异常变化亚失稳理论发震机理
Pingyuan Ms5.5 earthquakemobile geomagneticanomalous variation of lithospheric mag-netic fieldthe meta-instability theoryseismogenic mechanism
《大地测量与地球动力学》 2024 (9)
892-898,904,8
河北省地震科技星火计划(DZ2021121600003,DZ2024112200008,DZ20190422046). The Spark Program of Earthquake Technology of Hebei Province,No.DZ2021121600003,2024112200008,20190422046.
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