News

A 24-minute USGS video recounts the eruptive history of Halema'uma'u and tells the story of Kīlauea Volcano's current summit eruption, from its start...

Clear skies on Kīlauea Volcano

If you've visited Yellowstone, you've probably noticed that some thermal areas have a distinctive smell. This is due to the gas that discharges from...

Astute visitors to the USGS Hawaiian Volcano Observatory (HVO) website may have noticed that some recent earthquakes have negative depths. This does...

The Yellowstone region is one of the most seismically active areas in the United States, experiencing around 1,500 – 2,500 located earthquakes per...

"During the current lapse in appropriations U.S. volcano observatories including the Hawaiian Volcano Observatory will continue to monitor volcanic...

Rockfalls trigger explosions in Kīlauea Volcano's summit lava lake

With recent attention focused on the need to be prepared for all hazards, this week's Volcano Watch offers ways to stay informed about Hawaiian...

Have you ever wondered how Yellowstone Caldera was discovered, and how it was recognized as being the result of a massive volcanic eruption? In fact...

About a year ago, the lava lake within Halema‘uma‘u at Kīlauea Volcano's summit was high enough that spattering on the lake surface was commonly...