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The last eruption to occur at Yellowstone was 70,000 years ago, according to the United States Geological Survey.
The caldera is the enormous volcanic crater left from the last time Yellowstone experienced a giant eruption, 640,000 years ago. It covers an area about 30 by 45 miles .
FILE - The iconic Old Faithful Geyser springs to life (every 90 minutes) in Yellowstone National Park's Upper Geyser Basin on September 18, 2022, in Yellowstone National Park, Wyoming.
The most recent eruption of Steamboat Geyser occurred on October 7, 2024. [10] This was the 168th eruption since it re-activated in early 2018. [11] In 2019 the 48th eruption occurred on December 26. That set a new record for the most eruptions within a calendar year. The calendar year 2020 also saw 48 eruptions, tying the record set in 2019. [12]
An explosive eruption deposited pumiceous fallout near Harlequin Lake, [65] which is immediately overlain by the Mount Haynes lava (0.7016 ± 0.0014 million years). [67] An ash bed from a Yellowstone eruption was deposited in the Great Salt Lake approximately 0.7 million years ago. [75]
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A surprise eruption of steam in a Yellowstone National Park geyser basin that sent people scrambling for safety as basketball-sized rocks flew overhead has highlighted a little-known hazard that ...
The 2021–22 afternoon network television schedule for the four major English-language commercial broadcast networks in the United States covers the weekday and weekend afternoon hours from September 2021 to August 2022. The schedule is followed by a list per network of returning and cancelled shows from the 2020–21 season.