Carbon dioxide emissions from rising magma is one of the earliest signs that a volcano is waking up, but measuring it ...

When a volcano erupts, it can spew ash high into the atmosphere—inserting aerosols right where clouds typically form. How ...

Scientists have uncovered a promising new way to detect volcanic unrest by monitoring changes in vegetation near volcanoes, ...

A mysterious and highly active undersea volcano off the Pacific Coast could erupt by the end of this year, scientists say.

Volcanoes often seem quiet until the moment they erupt. But deep underground, long before lava spills or ash clouds rise, ...

The volcano known as Axial Seamount is drawing increasing scrutiny from scientists who only discovered its existence in the 1980s.

Samples from Hawaii seem to contain material that passed across the boundary between the planet’s core and its mantle, nearly ...