An official website of the United States government
Here's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Latest Earthquakes | Live WebChat Share Social Media
News about Glacier Peak.
While most of the Cascade Range volcanoes are located in remote areas, volcanic processes like ashfall and lahars can put large populations at risk...
USGS Volcanic Threat Assessment updates the 2005 rankings.