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  1. 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; however, this describes just one of the many types of volcano. The …

  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. 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 foundation that has allowed life to thrive. Their explosive force crafts...

  4. Volcanoes: Types, Formation and Eruption Styles - Geology Science

    Nov 22, 2025 · Volcanoes are geological formations that result from the accumulation of molten rock, ash, and gases beneath the Earth’s surface. These materials are expelled through openings or vents …

  5. Which Volcanoes are Erupting? - List & map of Active

    Aug 18, 2011 · List & map of currently active volcanoes. Try our free app! Support Us – Help Us Enhance Our Services!

  6. Live Now: Mayon Volcano is Erupting in the Philippines in 4K Ultra-HD

    Jan 5, 2026 · 4K live view of Mayon Volcano, one of the world’s most active and iconic stratovolcanoes, currently exhibiting heightened volcanic activity.

  7. Volcanoes of the Philippines | PHIVOLCS

    Erupted within historical times (within the last 600 years), accounts of these eruptions were documented by man erupted within the last 10,000 years based on the analyses of material from young volcanic …

  8. 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, and the cones and mountains built up around those vents. But beyond …

  9. 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 called lava. Magma is made of molten rock, crystals, and dissolved …

  10. 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 planet. Volcanoes are cracks in Earth's crust that allow molten rock and hot...