1. Alaska Science Center, U.S. Geological Survey, 4210 University Drive, Anchorage, Alaska 99508, USA
2. Geological Hazards Science Center, U.S. Geological Survey, 1711 Illinois Street, Golden, Colorado 80401, USA
3. Department of Geosciences, University of Rhode Island, 9 East Alumni Avenue, Kingston, Rhode Island 02881, USA
4. Pacific Coastal and Marine Science Center, U.S. Geological Survey, 400 Natural Bridges Drive, Santa Cruz, California 95060, USA
5. Nevada Bureau of Mines and Geology, Mail Stop 178, University of Nevada, Reno, Nevada 89557, USA
6. Department of Geological Sciences, East Carolina University, 101 Graham Building, Greenville, North Carolina 27858, USA
7. U.S. Geological Survey, Alaska Volcano Observatory, 4230 University Drive, Suite 100 Anchorage, Alaska 99508, USA