When a volcano erupts there can be lava, ash, steam or gaseous emissions. Sometimes eruptions are explosive and lava is thrown out as volcanic bombs. Hotspots are places where the magma rises up ...

Magma is the name given to molten material inside the earth (volcano) whereas lava is the name given to molten material which is often ejected from a volcano and then cools and solidifies.

An increase in seismic activity has prompted predictions that a mile-wide submarine volcano named the Axial Seamount will ...

a volcano-like structure rising more than 500 meters from the seafloor and possibly emitting gas. The discovery came as scientists from different organizations were aboard the Healy, one of two ...

Scientists aboard the Coast Guard Cutter Healy have identified a potential underwater volcano while mapping the seafloor off Alaska’s coast. The structure, which sits more than 1,600 meters ...