Novarupta Volcano, USA
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Novarupta Volcano, USA
A 65-m-high, 380-m-wide lava dome lies within a circular ejecta ring and caps the 1912 vent of Novarupta volcano.
A 60-hour-long eruption beginning on June 6, 1912, the Earth's largest eruption during the 20th century, produced The Valley of Ten Thousand Smokes ash-flow deposit, which forms the flat ground at the right.
The face of Falling Mountain, behind Novarupta dome, was sheared off by a 2-km-wide collapse around the Novarupta vent.
This view from the NE shows snow-capped Mageik volcano in the background.
PHOTO SOURCE: Tom Miller (U.S. Geological Survey, Alaska Volcano Observatory), courtesy of the Global Volcanism Program, Smithsonian National Museum of Natural History, used with permission.
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