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

Many Hawaiʻi Island communities downwind from the eruptive vents in the southwest portion of Halemaʻumaʻu Crater inside the ...

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 ...

Researchers from the National Autonomous University of Mexico (UNAM) recorded rising temperatures, increased gas emissions and unusual sulfur ...

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

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 ...

There appears to be a massive bulge forming along Yellowstone's caldera, indicating activity within the supervolcano's magma chamber.

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

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

Volcanoes are nature's most dramatic rocks, and while their eruptions can be awe-inspiring, they also pose serious threats to nearby communities and global climates. Scientists vigilantly monitor ...

What appears to be a single volcanic eruption is often the result of complex processes operating deep beneath the surface, ...