Stunning social media videos erupted from the northern coast of Colombia on Feb. 25, when a mud volcano exploded, shooting flames high into the sky and prompting evacuations, local officials reported.

Volcanoes often look deceptively quiet until the moment they unleash towering plumes of ash and gas, yet the precise switch that turns a gentle rumble into a devastating blast has remained stubbornly ...

It is generally assumed that volatile-rich magmas erupt predominantly effusively at water depths of several hundred meters, as the high hydrostatic pressure suppresses explosive activity. This view is ...