*Xiaocan Liu¹, Peng Han², Yangkun Liu^3,4, Jiyao Xu^4,5, Katsumi Hattori^6,7, Huaran Chen¹, Liguo Jiao¹, Jiyao Tu¹ (1.Institute of geophysics China Earthquake Administrition, 2.Department of Earth and Space Sciences, Southern University of Science and Technology, Shenzhen, China,, 3.State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing, China, 4.Institute of Electromagnetic Wave, School of Physics, Henan Normal University, Xinxiang, China , 5.University of Chinese Academy of Sciences, Beijing, China, 6.Graduate School of Science, Chiba University, Chiba, Japan, 7.Center for Environmental Remote Sensing, Chiba University, Chiba, Japan)