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  1. Volcano - Wikipedia

    A volcano is 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 below the surface. [1]

  2. 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 fragments, and hot gases. The term volcano can also refer to the …

  3. What's erupting? List & map of currently active volcanoes

    2 days ago · Which volcanoes are erupting? - List & map of active volcanoes erupting at present

  4. 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.

  5. 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 column - A vertical pillar of superheated volcanic ash, tephra, and gases …

  6. Most dangerous US volcano Mt. Rainier could devastate 60,000 residents

    2 days ago · America’s most dangerous volcano is bound to blow, scientists warn — and it could devastate surrounding towns in minutes

  7. 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 of lava into the air.

  8. 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.

  9. 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.

  10. Active Volcanoes in 2026 — Currently Erupting & Recently Active

    Complete list of currently erupting and recently active volcanoes worldwide. Explore which volcanoes are erupting right now and track volcanic activity across the globe.