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  1. en.wikipedia.org › wiki › VolcanoVolcano - Wikipedia

    A volcano is a rupture 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.

  2. 2 days ago · Learn about volcanoes, the vents from which magma and gases erupt to the surface, and the landforms they create. Explore how volcanoes are related to plate tectonics, and see examples of different types of volcanoes and eruptions.

  3. 2 days ago · A volcano in southwestern Iceland erupted Wednesday for the fifth time since December, spewing massive lava flows that threatened to cut off the town of Grindavík and prompting the evacuation of ...

  4. Oct 19, 2023 · Learn what volcanoes are, how they erupt, and how they are classified. Explore the types, features, and examples of volcanoes on land and under the ocean.

  5. Jan 14, 2020 · National Geographic. 23.1M subscribers. Subscribed. 193K. 30M views 4 years ago #NationalGeographic #Volcanoes #Educational. About 1,500 active volcanoes can be found around the world. Learn...

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  6. Jan 15, 2018 · Learn about the formation, types, dangers, and history of volcanoes on Earth. Find out how volcanoes create new land, shape landscapes, and affect climate and life.

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  8. Education. About Volcanoes. By Volcano Hazards Program. 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? Redoubt volcano with minor ash eruption.

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