Mount Lewotobi Laki-Laki in Indonesia's East Nusa Tenggara province erupted, spewing volcanic ash 11 miles into the sky on ...

In geology, even small layers can tell big stories. But figuring out the origins of such small layers can be a challenge, ...

This is the dramatic moment Mount Shinmoedake erupted in Japan, sending ash rumbling from its crater. Footage shows a thick ...

“The Yellowstone system is one that’s been stagnant for a long time.” The volcano’s largest eruption, which earned it the title of a supervolcano, occurred 2.1 million years ago.

The formation of Heart Mountain near Cody is a story of a block of rock the size of Rhode Island moving at 700 mph, an ...

Last week, an eruption from the Black Diamond Pool in Yellowstone National Park shot up about 20 feet, according to the Yellowstone Volcano Observatory.

Yellowstone National Park has a new plan for dealing with geologic hazards like thermal explosions and earthquakes for the ...

Tourists and officials were startled by a hydrothermal explosion at Black Diamond Pool in July 2024. Geoscientists are ...

If the Yellowstone supervolcano were to erupt — and there’s no indication that will happen any time soon — Billings residents could be up to their chins in ash.

After a multi-decade march of progressive excesses across our nation’s institutions, the pressure rose enough for the people ...

Michael Poland, the lead scientist-in-charge of the Yellowstone Volcano Observatory, said the Biscuit Basin has a history of small eruptions.

Mike Poland, who leads the Yellowstone Volcano Observatory for the U.S. Geological Survey, says these discoveries are helping scientists better understand how the whole system works.