Scientists uncover hidden land under Iceland, questioning our understanding of Earth's continents and tectonic plates.

Frequent earthquakes 300 miles off the coast of Oregon signal escalation for the underwater volcano named Axial Seamount.

This volcanic cloud layer reflected the sunlight, causing global cooling of approximately 1 degree Celsius. While scientists knew it was a major event, the identity of the volcano responsible ...

New study suggests rise of ancient city Tiwanaku coincided with major volcanic event in Lake Titicaca Basin's vicinity ...

Composite volcanoes are the most common type of volcano. They can have violent eruptions and can grow bigger as layers of thick lava and ash harden on top of each other. Mount Etna in Sicily ...

Bárðarbunga volcano in the north of Iceland could be waking up after an earthquake "swarm" was reported this week.