Zhengyang Zhou¹, Douglas Wiens¹, Weisen Shen², Richard C Aster³ and Andrew Nyblade⁴, (1)Washington University in St Louis, St. Louis, MO, United States, (2)Stony Brook University, Syosset, United States, (3)Colorado State University, Geosciences Department, Fort Collins, CO, United States, (4)Pennsylvania State University Main Campus, Department of Geosciences, University Park, PA, United States