The magma reservoir beneath Yellowstone volcano consists of two chambers — a shallow reservoir near the surface that's around 55 miles (90 kilometers) long and 25 miles (40 km) wide, and a ...

Yellowstone volcano: Caldera discovered 'twice the size' The hot rock in the chamber is 4.4 times larger than the shallower, long-known tunnel previously mapped out, according to the study.

Yellowstone Volcano Alert: Increased Magma Movement Detected. Posted: June 8, 2025 | Last updated: June 9, 2025. Recent research reveals that Yellowstone’s magma chamber contains significantly ...

HELENA, Mont. – The hot molten rock beneath Yellowstone National Park is 2 1/2 times larger than previously estimated, meaning the park’s supervolcano has the potential to erupt with a force ...

As tourists to Yellowstone stroll between 300 active geysers, they are treading one of the planet’s largest time bombs. It’s bigger than previously thought.

In addition, Yellowstone is thoroughly monitored by the U.S. Geological Survey and the Yellowstone Volcano Observatory, Cooper said. Yellowstone supervolcano has a lot more magma than previously ...

Visiting Yellowstone National Park is on the bucket list for many travelers, but a recent discovery underneath the park in regard to the existing supervolcano has stunned the scientific community.

Yellowstone volcano's magma chamber likely resembles an intricate network of magma-filled tubes and tunnels deep beneath the ground. Until recently, geologists studying supervolcano eruptions ...

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

However, there are no signs of "increased volcanic unrest" at the park. The supervolcano at Yellowstone National Park has substantially more magma reservoir under the caldera than scientists ...