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

    5 days ago · List & map of currently active volcanoes. Notes: The status colors of volcanoes are our subjective interpretation of activity status (unrest, alert, erupting, major eruption) and have no official …

  4. 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 …

  5. Kīlauea | U.S. Geological Survey

    1 day ago · The 2018 eruption of Kīlauea Volcano (Hawai‘i) was its most impactful in centuries, involving an outpouring of more than one cubic kilometer of basalt, a magnitude 7 flank earthquake, and the …

  6. 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...

  7. 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 expeditions to active volcanoes, walking and study holidays in …

  8. List of the world’s major volcanoes | Locations & Facts | Britannica

    There are more than 1,500 potentially active volcanoes or volcanic areas around the world at any given time. They may be the world’s most dynamic landforms, given their ability to grow by accretion or …

  9. 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...

  10. 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 …