Zhou Lu¹, Xiao Xiao¹, Xiaoxin Wang^1,2, Juan Zhu¹ and Lianxing Wen³, (1)University of Science and Technology of China, Hefei, China, (2)China Earthquake Networks Center, Beijing, China, (3)State University of New York at Stony Brook, Department of Geosciences, Stony Brook, United States