Alexander Pacubas, University of California Santa Barbara, Department of Earth Science and Earth Research Institute, Santa Barbara, CA, United States, Robin S Matoza, Earth Research Institute, Santa Barbara, United States; University of California, Santa Barbara, Department of Earth Science and Earth Research Institute, Santa Barbara, United States, Joel D. Simon, Princeton University, Department of Geosciences, Princeton, NJ, United States; Bathymetrix, LLC, Portland, OR, United States, Matthew M Haney, U.S. Geological Survey, Alaska Volcano Observatory, Anchorage, AK, United States, Catherine D de Groot-Hedlin, Scripps Institution of Oceanography, La Jolla, United States and The EarthScope-Oceans Consortium