• 2010-07-30 02:43:23 Kilauea Watch Orange
• 2010-07-29 22:25:30 Pagan Advisory Yellow
• 2010-07-23 19:11:53 Alaskan Volcanoes Normal Green
• 2010-07-23 17:53:48 Long Valley Volcanic Center Normal Green
• 2010-07-23 17:24:57 Cascade Range Normal Green
• 2010-07-23 00:30:16 Anatahan Normal Green
• 2010-07-19 18:14:59 Mauna Loa Normal Green
• 2010-07-01 18:08:43 Yellowstone Normal Green

Features

• Eyjafjallajökull, Ash, and Eruption Impacts
  

  The recent eruption at Eyjafjallajökull, Iceland has been producing a cloud of steam and volcanic ash that has been affecting air traffic. For more information, please see our Eyjafjallajökull page.




• NVEWS: National Volcano Early Warning System
  

  The National Volcano Early Warning System (NVEWS) is a proposed national-scale plan to ensure that volcanoes are monitored at levels equal to their threats. To learn more, please see our NVEWS page.

Did you know there are 169 active volcanoes in the United States? Learn more about how and why we monitor volcanoes.

Quick Links

• U.S. Volcano Webcams
• Monitoring Data
• Hazard Assessment Reports and Maps
• Volcanic Ash Information
• Photo Glossary
• FAQs
• Fact Sheets