1. Ministry of Emergency Management of China, National Institute of Natural Hazards, Beijing, People’s Republic of China
2. State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, People’s Republic of China
3. Department of Mathematical Sciences, Tsinghua University, Beijing, People’s Republic of China
4. School of Mathematics and Statistics, Ningxia University, Yinchuan, People’s Republic of China
5. Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, People’s Republic of China