Cinder cones are simple volcanoes that form where vents, or openings, spit out ash and lava. They can be cone- or oval-shaped, usually with a bowl-like crater at their summits. When a cinder cone ...

A red-hot lava flow two miles long has been attracting crowds to the slopes of Mount Etna on the island of Sicily, Italy.

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

The Athabasca Valles system offers key insights into the history of water on the Red Planet, and its volcanic features such as crater-like rootless cones hint at brief episodes in Mars' past when ...

MEEKER | Barone Middle School’s sixth graders have been studying volcanoes in science. This group embraced our annual project ...

Axial Seamount is a shield volcano, which means it's shaped like a shield rather than a steep-sided cone volcano. Its caldera at the top is a few miles wide and long, and about 300 feet deep.

This magma surges through the surface of the earth, then solidifies, resulting over time in a classic volcano cone. —Lexi Krock Note: Some of the text in this feature is adapted from materials ...

Hundreds of dikes can invade the cone and inner core of a volcano, as they do in Nyiragongo, often along zones of structural weakness. Magma is molten or partially molten rock beneath the Earth's ...