Mingxing Gao¹, Aron J Meltzner^1,2, Xiwei Xu³, Gerold Zeilinger⁴ and Xinnan Li¹, (1)Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore, (2)Nanyang Technological University, Asian School of the Environment, Singapore, Singapore, (3)Institute of Crustal Dynamics, China Earthquake Administration, Beijing, China, (4)University of Potsdam, Institute of Geoscience, Potsdam-Golm, Germany