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.

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 ...

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 ...

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 ...

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 ...

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.

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 ...

Scientists research Yellowstone caldera, develop best image of magma chamber Mark Davis, Powell Tribune Via Wyoming News Exchange Aug 7, 2023 ...

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 ...