There are many different kinds of volcanoes, ranging from the Hawaiian type, which produces gentle, effusive eruptions that tourists can observe from mere steps away, to the andesitic variety ...

As seismic activity within the volcano increases ... a large elongated fissure or fracture (as seen on the diagram above) or a tiny ground crack. Nyiragongo is notorious for releasing large ...

Save guides, add subjects and pick up where you left off with your BBC account. Composite volcanoes are the most common type of volcano. They can have violent eruptions and can grow bigger as ...

Scientists have mapped what are essentially the bones, blood vessels and nervous system of a "zombie volcano" to develop a comprehensive look inside. The Bolivian volcano Uturuncu hasn't erupted ...