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  1. Volcano - Wikipedia

    Augustine Volcano (Alaska) during its eruptive phase on January 24, 2006 A volcano is a vent or fissure in the crust of a planetary …

  2. 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 …

  3. Volcano | Definition, Types, & Facts | Britannica

    May 18, 2026 · volcano, vent in the crust of Earth or another planet or satellite, from which issue eruptions of molten rock, hot rock …

  4. Anatomy of a Volcano - U.S. National Park Service

    Jul 5, 2023 · Eruption cloud - A cloud of volcanic ash, tephra, and gases that forms downwind of an erupting volcano. Eruption …

  5. Global Volcanism Program | Current Eruptions

    There are 40 volcanoes with continuing eruptions as of the Stop Dates provided, and as reported through 31 March 2026. Although …

  6. Volcanoes: Facts, news, features and articles about geology's fieriest ...

    Mar 2, 2026 · Discover interesting facts about volcanoes, including why and where they form and history's deadliest eruption.

  7. Volcano facts and information | National Geographic

    Jul 10, 2025 · Fiery volcanoes have belched up molten rock, hot ash, and gas since Earth formed billions of years ago.

  8. VolcanoDiscovery: Volcanoes Worldwide - News, Info, Photos, and …

    Overview of our website: 1) Info about all active volcanoes in the world; 2) Volcano photos; 3) Earthquake information; 4) Tours and …

  9. Interactive Volcano Map — Explore All Volcanoes Worldwide

    Interactive world map showing all volcanoes. Explore eruption history, elevation, and activity levels for 1,740+ volcanoes worldwide.

  10. Volcanoes and Volcanic Eruptions - Facts and Information

    Home » Volcanoes and Volcanic Eruptions Volcanoes and Volcanic Eruptions What is a Volcano? A volcano is a vent in Earth's …