U.S. Volcanoes and Current Activity Alerts
Zoom to Region: Alaska | Hawaii | Mariana Islands | CA-NV | WA-OR | ID-WY | UT-CO-AZ-NM | U.S. Volcanoes
Volcano Status: Elevated | Normal | Unassigned
Alaska Volcano Observatory turns 25In April, 2013, the Alaska Volcano Observatory celebrates 25 years of monitoring and studying Alaska volcanoes. These efforts have improved global understanding of how volcanoes work and how to live safely with volcanic eruptions. Read the full news release in the USGS Newsroom.
Time-Lapse Summary of Two Years of Halema‘uma‘u ActivityKilauea volcano in Hawaii has been erupting nearly continuously since 1983. This Quicktime movie shows exactly two years of lava lake activity in Kīlauea's Halema‘uma‘u Crater (Feb 11, 2011 to Feb 11, 2013) in one minute of time-lapse video, using images taken from a thermal camera perched on the rim of Halema‘uma‘u. Click the video to the right to watch as the lava level rises and falls with pressure changes in the magma system, and the vent widens as the walls collapse into the lava lake.
Today, activity continues within the lava lake and elsewhere at Kīlauea. Visit the Hawaiian Volcano Observatory website to view regularly posted images of the activity and read the daily updates about the status of the ongoing eruption.
The National Volcano Early Warning System plans to closely monitor threatening volcanoes.
Current monitoring data from USGS volcano observatories.
Ash hazards information and guidance for homes, businesses, and communities.
Frequently updated real-time images of several U.S. volcanoes.
Yellowstone volcano podcasts and videos.
Archived photographs and images of U.S. volcanoes.
Information, photos and status updates for volcanoes of concern in the U.S.
Pictures and definitions of volcanic terms.
Grades 6-12 lessons and activities for teachers.