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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 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.
The hotspot's most recent caldera-forming supereruption, known as the Lava Creek Eruption, took place 640,000 years ago and created the Lava Creek Tuff, and the most recent Yellowstone Caldera. The Yellowstone hotspot is one of a few volcanic hotspots underlying the North American tectonic plate; another example is the Anahim hotspot.
This eruption produced more than 280 km2 of magma [7] and was nested within a portion of a larger caldera, the Huckleberry Ridge Caldera. [4] The third large eruption was about 0.6 Ma and created the Yellowstone Caldera. [4] This eruption produced 1,000 km2 of magma [7] through at least two volcanic vents. [4]
Final appropriations for fiscal year 2021 provided $30 million to the Volcano Hazards Program, which includes the warning and monitoring system. [12] In April, 2022, the USGS released its Volcano Hazards Program Strategic Science Plan for the five-year period from 2022 to 2026. [13]
July 23, 2024 at 8:51 PM. 1 / 2. ... (AP) — A surprise eruption in Yellowstone National Park shot steam, ... a California real estate agent who was with her mom, husband and their two kids. ...
The most recent active phase of Giant Geyser started on August 6, 2005, and continued until April 29, 2008, when activity decreased dramatically; there was a single eruption again on August 26, 2008. There were 11 eruptions in 2005, 47 in 2006, 54 in 2007 (the most eruptions for any year since 1955), and 13 in 2008.