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1. www.britannica.com › story › what-causes-a-volcano-to-eruptWhat Causes a Volcano to Erupt? | Britannica

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   Volcanoes erupt because of the way heat moves beneath Earth ’s surface. Heat is conveyed from the planet’s interior to its surface largely by convection —the transfer of heat by movement of a heated fluid. In this case, the fluid is magma —molten or partially molten rock —which is formed by the partial melting of Earth's mantle and ...

2. www.rtl2.de › spielfilm › 35850-volcanoVolcano - Die Spielfilme bei RTLZWEI - RTLZWEI

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   Vor 6 Tagen · Volcano. Spannende Katastrophen-Action, USA 1997. Ein unterirdischer Vulkan ist explodiert und droht die Millionenmetropole Los Angeles zu vernichten. Ein riesiger Lavastrom droht, Los Angeles unter sich zu begraben. Die Seismologin Amy Barnes und der Chef der Notfallzentrale Mike Roark tun alles, um die Stadt und ihre Bewohner in Sicherheit zu ...

3. www.nationalgeographic.org › forces-nature › volcanoesForces of Nature - National Geographic Society

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   This lowers the melting point of the mantle, and it melts to form magma. This magma will rise and leak into the crust forming a volcano. This process can create a chain of volcanic islands. Examples of island arcs are the Japanese islands and the Aleutian islands of Alaska. Cleveland Volcano, Aleutian Islands.

4. www.cnn.com › 2022/01/17 › asiaTonga volcano: What to know about the eruption and tsunami | CNN

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   17. Jan. 2022 · The eruption of an underwater volcano near Tonga on Saturday was likely the biggest recorded anywhere on the planet in more than 30 years, according to experts. Dramatic images from space captured ...

5. www.britannica.com › topic › worlds-major-volcanoes-2226816List of the world’s major volcanoes | Locations & Facts

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   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 shatter and collapse during an eruption. Volcanoes are vents in Earth’s crust (or in the crust of

6. www.cnn.com › europe › live-newsDecember 19, 2023 - Iceland volcano erupts - CNN

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   20. Dez. 2023 · A view from a helicopter shows the volcano eruption on Iceland's Reykjanes peninsula, on December 19. Icelandic Coast Guard. The volcanic eruption on Iceland's Reykjanes peninsula is releasing ...

7. www.usgs.gov › programs › VHPVolcano Updates | U.S. Geological Survey - USGS.gov

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   Dave Schneider, Acting Scientist-in-Charge, USGS djschneider@usgs.gov (907) 786-7497. Jessica Larsen, Acting Coordinating Scientist, UAF jflarsen@alaska.edu (907) 378-5460. The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of ...