A POSSIBLE MECHANISM OF THE CONTRIBUTING FACTOR
OF GEOMAGNETIC LOWEST SHIFT
1)Earthquake Administration of Hebei Province,Shijiazhuang 050021
2)School of Earth and Space Sciences,University of Science and Technology of China,Hefei 230026
3)Institute of Geophysics,CEA,Beijing 100081
4)China Earthquake Networks Center,Beijing 100045
Abstract:In the paper,the interior and exterior geomagnetic fields were separated.The equivalent current systems of interior and exterior geomagnetic field were calculated and inversed for Zhangbei Earthquake.The relations between the geomagnetic “lowest shift” phenomenon and the equivalent current systems were analyzed.The preliminary results show there is a clear relation between them.So,the equivalent current systems may be cause of the geomagnetic “lowest shift”.