The Lusi structure—a contraction of Lumpur Sidoarjo, meaning “Sidoarjo mud”—is an example of a geological feature known as a mud volcano. They form when a combination of mud, fluids and ga ...

Slow magma flows, small chambers, and hot rock all contribute to surprise volcano eruptions that occur without any prior ...

I’m in Italy visiting a very famous volcano called Mount Vesuvius. A volcano is an opening in the Earth’s crust, which allows hot magma, ash and gases to escape from below the surface.

No one expected these glittering bits among the gray lunar dust back then. The beads, smaller than grains of sand, formed ...

More than 1,000 active volcanoes around our planet can sputter glowing lava and smoky ash, and the world's biggest one has erupted in Hawaii after 38 years dormant. The largest active volcano in ...

If there’s an eruption, the trench is designed to prevent lava reaching the power plant, causing outages and disruption, Bjarndal said. Despite the seismic activity in the volcanic region ...