Understanding Volcano Hazards and Preventing Volcanic Disaster: A Science Strategy for the Volcano Hazards Program, U.S. Geological Survey, 2004-2008 [open pdf - 2MB]
"With more than 169 geologically active volcanoes, the United States is among the most volcanically active countries in the world. During the twentieth century, volcanic eruptions have caused substantial economic and societal disruptions. Hazardous volcanic activity will continue to occur in the U.S., and, because of rising populations, development pressures, and expanding national and international air traffic over volcanic regions, risks to life and property through exposure to volcano hazards continue to increase. Moreover, rapid globalization makes U.S. businesses, financial markets, and government interests vulnerable to volcano hazards throughout the world. The mission of the U.S. Geological Survey (USGS) Volcano Hazards Program (VHP) under the Disaster Relief Act (P.L. 93-288) is to enhance public safety and reduce losses from volcanic events through effective forecasts and warnings of volcanic hazards based on the best possible scientific information. The VHP conducts four major science activities to reduce volcanic risk in the Nation: (1) monitoring volcano unrest and eruption, (2) preparing volcano hazard assessments, (3) conducting research on volcanic processes, and (4) providing reliable forecasts, warnings, and volcano-hazard information. These activities address the U.S. Department of the Interior's (DOI) Serving Communities strategic goal of protecting lives, resources, and property by making information available to communities to use in developing volcano hazard mitigation, preparedness, and avoidance plans, and support the Geology Strategic Plan (2001-2010) goals of conducting geologic hazards assessments for mitigation planning and providing short-term prediction of geologic disasters and rapidly characterize their effects."
United States Geological Survey: http://pubs.usgs.gov/