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Earthquakes that rupture the ground surface leave behind the telltale signature of fault scarps, which provide clues about seismic activity in the...

Photography has been a crucial part of volcano monitoring in Hawaii going back to the start of the USGS Hawaiian Volcano Observatory (HVO). In 1911...

What did the Yellowstone landscape look like after one of its large caldera-forming eruptions? Clues from crystals suggest it might have resembled...

Last month, the Hawaiʻi County Civil Defense Agency, Hawaiʻi Volcanoes National Park, and the U.S. Geological Survey (USGS) Hawaiian Volcano...

Hydrothermal explosions, like that which occurred on July 23, 2024, in Biscuit Basin, are not just a hazard that occurs in Yellowstone.

With over 10,000 thermal features, Yellowstone is covered from A to Z. Well, almost…

The Pacific Internship Programs for Exploring Science (PIPES) is celebrating its 30th anniversary of growing the next generation of aloha ʻāina...

In July 2024, a hydrothermal explosion at Black Diamond Pool sent muddy water and rocks hundreds of feet into the air. It’s far from the first time a...

Remember when a little puddle of green water was spotted in Halemaʻumaʻu? Time flies, because that was late July 2019—over five years ago! And because...

How often do hydrothermal explosions occur in Yellowstone National Park? It all depends on the size of the event.