Hannah Osborne is the Earth and Animal Editor at Live Science. Prior to Live Science, she worked for several years at Newsweek as the Science Editor.
The last caldera-forming eruption at Yellowstone"was much more complex than previously thought," according to the annual report about activity at the supervolcano.
The last super-eruption at Yellowstone volcano, which occurred 631,000 years ago, was not one huge explosion. Instead, new research suggests it was a series of eruptions or multiple vents spewing volcanic material in rapid succession. , published May 4, fieldwork over the past year has provided new geological evidence that"the formation of Yellowstone Caldera was much more complex than previously thought.
in the past 3 million years: the Huckleberry Ridge Tuff eruption, 2.1 million years ago; the Mesa Falls eruption, 1.3 million years ago; and the Lava Creek eruption, 631,000 years ago. The Huckleberry Ridge Tuff and Lava Creek events are considered super-eruptions because they expelled over 240 cubic miles of material. The latter was responsible for the formation of the Yellowstone caldera.
To better understand the timeline of the eruption, scientists spent 2022 remapping and collecting samples at Sour Creek Dome.
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