Seafloor Geodetic Observations at Axial Seamount Show a Decade-Long Surge in Magma Supply and a Greater Than Ten-Fold Variation in Supply Rates Over the Last 25 Years

William W. Chadwick Jr, Oregon State University, CIMERS, Newport, United States, Scott L Nooner, University of North Carolina at Wilmington, Dept of Earth and Ocean Sciences, Wilmington, NC, United States and Jeffrey W Beeson, Oregon State University, Cooperative Institute for Marine Ecosystem and Resource Studies, Newport, United States