Volcanoes are among Earth's most powerful natural features. They have shaped continents, created islands, influenced climate, and fascinated people for thousands of years. While volcanic eruptions can ...

(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 ...

Volcanoes emit smoke. Beneath a volcano lies a huge chamber filled with liquid magma. A series of earthquakes means an eruption is imminent. And if a "supervolcano" like Yellowstone were to awaken, a ...

Over 3,000 years ago, the eruption of Santorini’s volcano ended an ancient civilization. Scientists may know what the next big explosion could look like. A man looks out across the Santorini caldera ...

May 6 (Reuters) - A volcano dormant for thousands of years is erupting in the remote South American region of Patagonia, coating nearby towns in ash and forcing emergency evacuations -- the latest in ...

Lava is molten rock from a volcano that reaches the Earth’s surface. Liquid rock below the Earth’s surface is referred to as magma. More than 50% of the world’s active volcanoes above sea level ...