Jan 24, 2008 · There are about 170 potentially active volcanoes in the U.S. The mission of the USGS Volcano Hazards Program is to enhance public safety and minimize social and …

2 days ago · Cascades Volcano Observatory 12/12/2025 1:23:58 PM, Cascade Range Weekly Update 12/5/2025 12:58:50 PM, Cascade Range Weekly Update 11/28/2025 11:39:09 AM, …

2 days ago · The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in …

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The Volcano Notification Service (VNS) is a free service of the U.S. Geological Survey (USGS) that sends you emails about volcanic activity at U.S. monitored volcanoes using the USGS …

Aug 25, 2025 · The U.S. Geological Survey Cascades Volcano Observatory and the University of Washington Pacific Northwest Seismic Network continue to monitor Washington and Oregon …

Dec 12, 2025 · The U.S. Geological Survey Cascades Volcano Observatory and the University of Washington Pacific Northwest Seismic Network continue to monitor Washington and Oregon …

HVO, unique among U.S. volcano observatories, has the USGS responsibility to record and report on the thousands of earthquakes that occur every year in Hawaii, mostly beneath the Island of …

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https://volcanoes.usgs.gov/vsc/api/volcanoApi/elevated?obs= {avo|calvo|cvo|hvo|nmi|yvo} US Volcanoes with elevated activity.Get plots from stations near a volcano: …