Volcano - Wikipedia
The most common perception of a volcano is of a conical mountain, spewing lava and poisonous gases from a crater at its summit; …
Volcano | Definition, Types, & Facts | Britannica
Volcano, vent in the crust of Earth or another planet or satellite, from which issue eruptions of molten rock, hot rock fragments, and …
Which Volcanoes are Erupting? - List & map of Active
1 day ago · Our mission is to provide uninterrupted, real-time updates whenever an earthquake strikes or a volcano erupts — and …
About Volcanoes | U.S. Geological Survey - USGS.gov
Molten rock below the surface of the Earth that rises in volcanic vents is known as magma, but after it erupts from a volcano it is …
Volcano Hazards Program | U.S. Geological Survey
Volcano Observatory staff monitor, research, and issue formal notices of activity for volcanoes in assigned geographic areas. …
Volcano facts and information | National Geographic
Jul 10, 2025 · Volcanoes are Earth’s geologic architects. They’ve created more than 80 percent of our planet’s surface, laying the …
Watch: Lava soars 1,100 ft above Hawaii’s Kilauea in latest eruption
Nov 10, 2025 · Hawaii's Kilauea volcano, one of the world's most active, erupted again on 9 November shooting a massive fountain …
Global Volcanism Program - Smithsonian Institution
The range of volcanic behavior is great enough, and volcano lifetimes are long enough, that we must integrate observations of …
Volcanoes: Facts, news, features and articles about geology's fieriest ...
Mar 2, 2026 · From lava fountains to towering ash clouds, volcanoes produce some of the most dramatic geological events on the …
Anatomy of a Volcano - U.S. National Park Service
Jul 5, 2023 · Volcanoes are both the vents where molten rock material and volcanic gases are erupted from within Earth’s interior, …