WASHINGTON — A vast pool of molten rock in the continental crust that underlies southwestern Washington state could supply magma to three active volcanoes in the Cascade Mountains — Mount St. Helens, ...

Every day, the supervolcano lurking under Yellowstone National Park belches up 45,000 metric tons of carbon dioxide - much more than could be produced by the known magma chamber that lies just below ...

Researchers discovered that the tremors in Greece were not caused by a slipping fault but were triggered by rebounding sheets ...

WASHINGTON -- A vast pool of molten rock in the continental crust that underlies southwestern Washington state could supply magma to three active volcanoes in the Cascade Mountains -- Mount St. Helens ...

When the dinosaur-snuffing asteroid hit Earth some 66 million years ago, it produced a subterranean pool of magma roughly nine times larger than the current caldera at Yellowstone National Park, ...

The 2021 "Fagradalsfjall Fires" eruptions may have been triggered by magma pooling just underneath the ground, contrary to what scientists initially thought. An eruption of the Fagradalsfjall volcano ...

Lava erupts from the Sundhnúkur volcano on June 3, 2024, on the Reykjanes Peninsula near Grindavik, Iceland. The volcano has erupted five times since December 2023, forcing evacuations of Grindavik ...

The supervolcano below Long Valley, California, near Yosemite National Park hasn't erupted in 765,000 years—but when it did, if geologists had been around to watch it, they may have been surprised by ...

When red-hot magma spews from a volcano, it is clearly flowing like a liquid. But before erupting, that same magma may have spent hundreds of thousands of years in a chunky state resembling cold ...

The largest volcanoes on our planet may take as little as a few hundred years to form and erupt. These "supervolcanoes" were thought to exist for as much as 200,000 ...