Do a Google image search for “Greece.”

The Soufriere Hills Volcano on Montserrat erupted in 1995, and an international team of researchers has studied this volcano from land and sea since then to understand the workings of andesite volcanos more completely.

A prominent vulcanologist said on Monday that Europe's largest undersea volcano could disintegrate and unleash a tsunami that would engulf southern Italy "at any time."

Researchers from The University of British Columbia and McGill University have simulated in the lab the process that can turn ordinary volcanic eruptions into so-called “supervolcanoes.”

Yellowstone National Park, once the site of a giant volcano, has begun swelling up, possibly because molten rock is accumulating beneath the surface, scientists report.