Yellowstone’s magma chamber is mostly made of a light-colored rock called rhyolite. It spreads out over an area roughly 55 miles long and 30 miles wide and reaches down to a depth of about 10 miles.

Yellowstone’s magma chamber is mostly made of a light-colored rock called rhyolite. It spreads out over an area roughly 55 miles long and 30 miles wide and reaches down to a depth of about 10 miles.

“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.

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

Scientists studying Alaska’s Veniaminof volcano found that warm rock, small magma chambers, and slow flows can mask eruption signs. Their new model helps forecast these stealthy threats.

Volcano by the numbers They found that a high flow of magma into a chamber increases the deformation of the ground and the likelihood of an eruption. If magma is flowing quickly into a large ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Blaine McCleskey, research ...

Stealthy Volcano Eruptions and When They Occur Li’s team built a model to predict how magma flow and the shape, size, and depth of the magma chamber affects its behavior. The results were then ...

On Nov. 6, 2011, Oklahoma experienced its biggest earthquake ever, at level 5.6. I woke up to its boom 600 miles away in Denver.

In an email, a spokesperson for Yellowstone National Park said the parking lot and boardwalks are still closed at Biscuit Basin: “We are closely monitoring activity at the site for the ...