The White Island Volcano in New Zealand – which erupted Monday with a towering blast of ash and scalding steam, killing at least five people – is one of New Zealand's most active volcanoes. The ...

Volcanoes are grouped into four types: cinder cones, composite volcanoes, shield volcanoes and lava volcanoes. Cinder cones are circular or oval cones made up of small fragments of lava from a single ...

Volcanoes repeatedly remind people of Earth's potential for violence. Since 1700, volcanic eruptions have killed more than 250,000 people and devastated scores of communities. What causes these ...

(CNN) — Here's some background information about volcanoes, mountains that open downward to a reservoir of molten rock. Facts: More than 80% of the Earth's surface, both above and below sea level, is ...

Mt. Hood looms over Portland, Oregon.Credit: Barb Salam, Wikimedia Commons. The Oregon Cascade Range is ... complicated. From the surface it looks like the chain of volcanoes that we started exploring ...