COOMBS, Michelle L., Alaska Volcano Observatory, US Geological Survey, 4230 University Dr, Anchorage, AK 99508, LARSEN, Jessica F., Geology, University of Alaska Fairbanks, Fairbanks, AK 99775 and NEAL, Christina A., Alaska Volcano Observatory, U.S. Geological Survey, Volcano Science Center, 4210 University Drive, Anchorage, AK 99508, mcoombs@usgs.gov