Recent research reveals that Yellowstone’s magma chamber contains significantly more liquid magma than scientists previously estimated, suggesting that the supervolcano might be closer to ...

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.

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 ...

Some volcanoes erupt without warning. Scientists studying Alaska’s Veniaminof volcano found that warm rock, small magma chambers, and slow flows can mask eruption signs.

The volcano may not erupt. But if magma quickly fills the chamber and an eruption does occur, the ground will likely bulge or otherwise change shape, a process called deformation.

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 ...

Tourists and officials were startled by a hydrothermal explosion at Black Diamond Pool in July 2024. Geoscientists are working out how and why it occurred to better understand these hazardous events.

On the night of May 31, an eruption from the Black Diamond Pool in Yellowstone National Park shot up about 20 feet, according to the Yellowstone Volcano Observatory.

This article was originally published with the title “Fossil Forests of the Volcanic Tertiary Formations of the Yellowstone National Park” in SA Supplements Vol. 7 No. 180supp (June 1879), p ...