A volcano once dormant in southwest Iceland erupted Wednesday for the 12th time in four years as nearby resort towns were evacuated as a safety precaution.

New simulations reveal that an ancient ocean of magma located above the Earth's core continues to shape the planet's ...

They found four pockets together contain more liquid magma than was present during large, caldera-forming eruptions at Yellowstone in the past (one 2.8 million years ago, one 1.3 million years ago ...

Magma reservoirs aren't like underground lakes of fire. Rather, they're made of porous rock through which liquid magma moves. Only when the portion of liquid magma goes over 35% does the reservoir ...

The magma storage areas imaged by the magnetotelluric study are not completely molten, however, and instead consist of a mush of packed crystals interspersed with liquid rhyolitic magma. If those ...

In recent years, scientists have turned to so-called “crystal clocks” to understand how long magma is stored underground before an eruption and how long it can take to travel to the surface.