Most volcanoes form at the boundaries of Earth's tectonic plates, which are huge slabs of crust and upper mantle that fit together like puzzle pieces. Think of these plates as massive rafts floating ...

Shortly before 10 a.m. on July 23, 2024, a violent hydrothermal blast ripped through Biscuit Basin in Yellowstone, hurling ...

ONE of the world’s most dangerous volcanoes is showing unsettling new signs of activity. Scientists from the National ...

A swelling underwater volcano off the West Coast may erupt later than previously projected. Scientists initially thought that the Axial Seamount, which lies 300 miles off the coast of Oregon, would ...

Fluid inclusions in volcanoes are dominantly composed of carbon dioxide. At magmatic temperatures — 2,192 degrees — the density of the carbon dioxide strongly depends on pressure, which is influenced ...

A gigantic bulge in the north rim of the Yellowstone caldera is the latest sign of volcanic activity in the national park. Geologists call this type of bulge “volcanic uplift.” It’s often caused by ...

Scientists in Mexico documented a number of changes inside El Chichón during monitoring between June and December 2025.

An underwater volcano off the coast of Oregon is gearing up for an eruption, according to volcanologists who are monitoring for activity. The Axial Seamount-- an underwater volcano located about 300 ...

Volcanoes don’t always show their activity through huge explosions or lava rivers. In many cases, the changes are quiet and ...

"What makes the event even more extraordinary is that it did not involve a single volcano, but multiple active sources." ...

Learn how a young volcano on Mars stayed active for nine million years and what its changing lava reveals about Mars’ interior.