
Volcano - Wikipedia
A volcano is commonly defined as a vent or fissure in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber …
Volcano | Definition, Types, & Facts | Britannica
Apr 9, 2025 · Volcano, vent in the crust of Earth or another planet or satellite, from which issue eruptions of molten rock, hot rock fragments, and hot gases. The term volcano can also refer …
What Is a Volcano? | NASA Space Place – NASA Science for Kids
1 day ago · A volcano is an opening on the surface of a planet or moon that allows material warmer than its surroundings to escape from its interior. When this material escapes, it causes …
Which Volcanoes are Erupting? - List & map of Active Volcanoes …
2 days ago · List & map of currently active volcanoes. Try our free app! Support us - Help us upgrade our services!
Volcano facts and information - National Geographic
Jan 15, 2018 · Volcanoes are Earth's geologic architects. They've created more than 80 percent of our planet's surface, laying the foundation that has allowed life to thrive. Their explosive force...
About Volcanoes | U.S. Geological Survey - USGS.gov
Volcanoes are openings, or vents where lava, tephra (small rocks), and steam erupt onto the Earth's surface. Volcanic eruptions can last days, months, or even years. What is a volcano? …
Types of Volcanoes - Science Notes and Projects
Oct 1, 2023 · The broad types of volcanic eruptions are magmatic, phreatomagmatic, and phreatic, but vulcanologists subdivide eruptions either by names or numbers. The Volcanic …
Volcanoes and Volcanic Eruptions - Facts and Information - Geology.com
A volcano is a vent in Earth's surface where magma, gas, and ash escape. The name is also used for cones of erupted material at the vent. Volcanoes are found on many planets and moons in …
Volcanoes - Education | National Geographic Society
Apr 9, 2025 · A volcano is an opening in a planet or moon’s crust through which molten rock, hot gases, and other materials erupt. Volcanoes often form a hill or mountain as layers of rock and …
Volcanoes of the World - News, Facts & Information - VolcanoDiscovery
Apr 5, 2025 · Read the latest volcano activity updates around the world. See volcano pics from our trips. Visit our video channel on youtube! Get current updates on the current activity on …