Xuejian Wu¹, Zachary Pagel¹, Bola S. Malek¹, Storm Weiner¹, Yuanhang Yang¹, Yanyan Zhu², Daniel S Scheirer³ and Holger Müller¹, (1)University of California Berkeley, Department of Physics, Berkeley, CA, United States, (2)University of California Berkeley, Department of Physics, Berkeley, United States, (3)USGS, Menlo Park, CA, United States