Explore the parts of a volcano such as Mt. St. Helens and see what causes destruction during a volcanic eruption. ... Though volcanologists study all types of volcanoes, ...

Ongoing research at the Alaska Volcano Observatory suggests that a group of volcanic islands in the central Aleutians are all part of a large previously unrecognized caldera of a supervolcano.

Etna Week Part 1 Mount Etna – Brief Anatomy of an Exceptional Volcano By guest blogger Dr. Boris Behncke. Italy truly deserves to be called “the Cradle of Volcanology” – not only because ...

A volcanic crater northeast of Healy, Alaska, that is part of the Buzzard Creek maars. (Photo by Chris Nye) For years, scientists have wondered why North America’s highest mountain is not a volcano.