Search results
Results from the WOW.Com Content Network
The Lava Creek eruption of the Yellowstone Caldera, which occurred 640,000 years ago, [112] ejected approximately 1,000 cubic kilometres (240 cu mi) of rock, dust and volcanic ash into the atmosphere. It was Yellowstone's third and most recent caldera-forming eruption.
The most recent volcanic eruption occurred in Yellowstone approximately 650,000 years ago resulting in a 30- by 45-mile caldera, or basin. ... a few times per year, but often in the back country ...
Flat Landing Brook; VEI 8, A Supervolcanic eruption occurred 466 million years ago, as it erupted in one of the largest explosive volcanic eruptions known in Earth's history with a volume of ejecta at around 2,000–12,000 cubic kilometers (480–2,879 cu mi). The Phanerozoic eon begins 539 million years ago. [91]
Name origin: Named by Henry D. Washburn September 18, 1870; 154 years ago (): Location: Upper Geyser Basin Yellowstone National Park Teton County, Wyoming, U.S.: Coordinates: 1]: Elevation: 7,349 ft (2,240 m) [2]: Type: Cone geyser: Eruption height: 106 to 185 ft (32 to 56 m): Frequency: 60 to 90 minutes: Duration: 1½ to 5 minutes: Discharge: 3,700–8,400 US gal (14,000–32,000 L): Old ...
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 last time it erupted three times in a year was in 2003, the U.S. Geological Survey's Yellowstone Volcano Observatory said. Unusual eruptions at world's largest active geyser in Yellowstone [Video]
The Lava Creek Tuff is a voluminous sheet of ash-flow tuff located in Wyoming, Montana and Idaho, United States.It was created during the Lava Creek eruption around 630,000 years ago, which led to the formation of the Yellowstone Caldera.
The “first national park” was born 151 years ago, on March 1, 1872, when President Ulysses S. Grant signed into law the Yellowstone National Park Protection Act.