[1] State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing,100029, China
[2] College of Marine and Space Information, China University of Petroleum, Qingdao,266580, China
[3] Second Monitoring and Application Center, China Earthquake Administration, Xi'an,710054, China
[4] National Institute of Natural Hazards, Ministry of Emergency Management, Beijing,100085, China