E. W. Grimes¹, Nikolaos Hatzigeorgiu², James Wilbur Lewis³, Cynthia Russell⁴, James M McTiernan⁵, Alexander Drozdov¹ and Vassilis Angelopoulos⁶, (1)University of California Los Angeles, Los Angeles, CA, United States, (2)University of California Berkeley, Berkeley, United States, (3)University of California Berkeley, Berkeley, CA, United States, (4)University of California Los Angeles, Department of Earth, Planetary and Space Sciences, Los Angeles, CA, United States, (5)Univ California Berkeley, Berkeley, CA, United States, (6)University of California, Los Angeles, Department of Earth, Planetary, and Space Sciences and Institute of Geophysics and Planetary Physics, Los Angeles, CA, United States