This is just an investigation, but thousands of people live in areas near the Cascade volcanoes. If you live in or visit any of these areas, you should be aware of evacuation plans that have been set by government agencies.
USGS Fact Sheets
Mount Rainier: Living with Perilous Beauty
Living with Volcanic Risk in the Cascades
Mount Hood???History and Hazards of Oregon's Most Recently Active Volcano
Mount Baker???Living with an Active Volcano
News stories
Evacuation planning in Pierce County, northwest of Mount Rainier
Perceptions of Mount Rainier in Orting, Washington