One Planet, 1,500 Personalities: The Uniqueness of Volcanoes Every volcano is unique, with its own special quirks (and yes, ...

Most volcanoes form at the boundaries of Earth's tectonic plates, which are huge slabs of crust and upper mantle that fit together like puzzle pieces. Think of these plates as massive rafts floating ...

Mount Etna has long puzzled geologists because it doesn't fit any of the three classic ways volcanoes are thought to form. A ...

(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 ...

This photo provided by the U.S. Geological Survey shows the summit lava lake of Hawaii's Kilauea volcano on May 6, 2018. By analyzing the dynamics of a string of explosions that happened during the ...