A new column of steam rises from Yellowstone. While the expansive volcano shows no hints of an eruption, magma brews beneath ...

HONOLULU (AP) — An erupting Hawaii volcano once again began shooting fountains of lava that reached hundreds of feet high on Tuesday. Fountains reached heights of 400 feet to 500 feet in the ...

Composite volcanoes are the most common type of volcano. They can have violent eruptions and can grow bigger as layers of thick lava and ash harden on top of each other. Mount Etna in Sicily ...