heating and melting it to form reservoirs of magma 2½ to 30 miles below the surface. In the past this was often pictured as a single underground lake of lava beneath volcanos, but newer mapping ...

The restless lava lake in Nyiragongo's summit crater regularly causes eruptions of gas and smoke laden with tephra. Lava is the word for magma when it erupts onto the Earth's surface. Geologists ...

A sinister threat is lurking beneath a lake near the city of Goma in the Democratic Republic of Congo. Scientists say underground magma has been flowing toward Lake Kivu since the deadly eruption ...

Below the surface, Earth's rocky rind is ripping apart, and underground chambers of magma are fueling 12 active volcanoes as well as steaming geysers, boiling cauldrons, and a fiery lake of lava.

Lava comes out of ruptures in the Earth's surface, which are connected to pipes, or pathways underground, and a big crater that holds all the magma, like a lake. Underground, magma isn't free ...

it's visible from space.The minerals and acids in the crater lake give the water its seemingly artificial turquoise color. They originate from a chamber of red-hot magma below the volcano ...