The legacy of the 1980 Mount St. Helens eruption: Volcano geophysics and its use in volcano monitoring and eruption forecasting

Seth C Moran, USGS Cascades Volcano Observatory, Vancouver, WA, United States, Daniel Dzurisin, USGS, Vancouver, WA, United States, Stephen D Malone, University of Washington, Seattle, WA, United States, Michael P Poland, USGS, Yellowstone Volcano Observatory, Vancouver, WA, United States and Weston A Thelen, USGS, Cascades Volcano Observatory, Vancouver, WA, United States