At places where two tectonic plates are pulling away from each other, magma — hot, molten rock — can rise from the mantle to the surface, forming volcanoes. Volcanoes can also form where ...

The tallest volcano in Europe, Italy's Mount Etna, and the world's most active volcano, Kilauea in Hawaii, erupting again.

There are two main types of volcano - composite and shield. The two types of volcano form in different places and have very different characteristics. Ash released from shield volcanoes often ...

A little-known volcano in the remote Kuril Islands, Zavaritzki, links an explosion in 1831 with drastic climate changes.

Volcanic ash is typically a mixture of crushed ... Water droplets often cling to ash in the air and form storm clouds ...

but a violent eruption around 1600 B.C. caused the volcano to cave in partially, forming a lagoon. That particular eruption is famous for potentially dooming the Minoan civilization and inspiring ...