Volcano Hazards
U.S. Volcanoes and Current Activity Alerts
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There are 169 potentially active volcanoes in the U.S. The mission of the USGS Volcano Hazards Program is to enhance public safety and minimize social and economic disruption from volcanic unrest and eruption. We accomplish this by delivering effective forecasts, warnings, and information about volcano hazards based on scientific understanding of volcanic processes.
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Volcano Watch — A closer look at Kīlauea’s newest lava
Every rock on Earth is made of up a unique combination of chemical elements, and lavas/tephra formed during Hawaiian eruptions are no exception. What is the geochemistry of Kīlauea’s newest tephra—and how can it help us understand the processes driving the ongoing eruption?
Photo and Video Chronology – Kīlauea – January 20, 2021
The eruption in Halema‘uma‘u at Kīlauea's summit on the Island of Hawai‘i continues, with the west vent erupting lava into the lava lake. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear and PPE—monitor the current eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.
Photo and Video Chronology – Kīlauea – January 19, 2021
On the Island of Hawai‘i, Kīlauea Volcano's summit eruption continues, with the west vent in Halema‘uma‘u erupting lava into the lava lake. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear and PPE—monitor the current eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.