The blowout that was so evidently seen and heard . . . gave off three muffled cannon rounds like a bombardment, so loud that they could be heard for more than 30 leagues around the base. In the region ...

The percentage of water in arc volcanoes, which form above subduction zones, may be far more than many previous studies have calculated. This increased amount of water has broad implications for ...

Over millions of years, the Earth’s upper layers have performed a dance that has created mountains, volcanoes, continents, ridges and ocean trenches. Tectonic plates play a key role in this process.

Along 1,100 kilometers, from Mexico to Costa Rica, lies the Central American volcanic arc, where the variety of magma types make for a geological paradise. By Pablo Fonseca Q. / Knowable Magazine ...

Guatemala's Fuego volcano ad Hawaii's Kilauea volcano, which both erupted Sunday, are part of the Pacific Ring of Fire, an area of intense seismic and volcanic activity. The 40,000-kilometer ...