Erik K Fredrickson¹, William S D Wilcock¹, Christian Baillard², Michael Harrington³, Geoff Cram⁴, James Tilley⁴, William W. Chadwick Jr⁵ and Scott L Nooner⁶, (1)University of Washington, School of Oceanography, Seattle, WA, United States, (2)Ecole Normale Supérieure Paris, Geology, Paris, France, (3)Applied Physics Laboratory University of Washington, Seattle, United States, (4)University of Washington, Applied Physics Lab, Seattle, WA, United States, (5)NOAA PMEL Earth Ocean Interactions Program, Newport, OR, United States, (6)University of North Carolina at Wilmington, Dept of Earth and Ocean Sciences, Wilmington, NC, United States