How do volcanoes work? What happens beneath their surface? What causes the vibrations—known as tremor—that occur when magma ...

The Ring of Fire is an enormous belt of active and dormant volcanoes that surrounds most of the Pacific Ocean. It runs from southern Chile, up the west coast of the Americas, through the islands off ...

The Mount St. Helens eruption anniversary prompts investigation into the California earthquakes: eruption history, threat levels.

The flow of lava following the latest volcanic eruption in Iceland has slowed down, officials said on Sunday. On Saturday evening, the volcano erupted for the fourth time in four months near the ...

Kīlauea is stirring again. Scientists at the Hawaiian Volcano Observatory say signs of a new eruption episode began early Tuesday morning inside Halemaʻumaʻu crater. Kilauea eruption paused, but ...

The equatorial regions of Mars are home to unexpectedly enormous layers of ice, and they may have been put there by dramatic volcanic eruptions billions of years ago ...

A mysterious type of iron-rich magma entombed within extinct volcanoes is likely abundant with rare earth elements and could offer a new way to source these in-demand metals, according to new research ...

Scientists who were there say it was good luck - not good management - that no one was killed during the eruption on 23 1995.

A mysterious type of iron-rich magma entombed within extinct volcanoes is likely abundant with rare earth elements and could offer a new way to source these in-demand metals, according to new research ...