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An explosion 13,800 years ago left a 5 km (3.1 mi) diameter crater at Mary Bay on the edge of Yellowstone Lake (located in the center of the caldera). [89] Currently, volcanic activity is exhibited via numerous geothermal vents scattered throughout the region, including the famous Old Faithful Geyser , plus recorded ground-swelling indicating ...
(See Yellowstone Caldera map.) The Henry's Fork Caldera in Idaho was formed in an eruption of more than 280 km 3 (67 cu mi) 1.3 million years ago, and is the source of the Mesa Falls Tuff. [11] The Henry's Fork Caldera is nested inside of the Island Park Caldera and the calderas share a rim on the western side.
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.
Map showing extent of ashfall from eruptions. The Yellowstone Caldera formed over 600,000 years ago from the Lava Creek Tuff eruption, ... Known as a super eruption for its magnitude, the event ...
The most recent volcanic eruption occurred in Yellowstone approximately 650,000 years ago resulting in a 30- by 45-mile caldera, or basin. ...
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 .
This eruption of 2,450 km 3 (590 cu mi) of material is thought to be one of the largest known eruptions in the Yellowstone hotspot's history. This eruption, 2.1 million years ago, is the third most recent large caldera-forming eruption from the Yellowstone hotspot. It was followed by the Mesa Falls Tuff and the Lava Creek Tuff eruptions. [3]
The Yellowstone Caldera has two resurgent domes formed by magma upwelling called Sour Creek and Mallard Lakes. [8] The magma chambers under the Yellowstone Caldera provides heat and energy for large hydrothermal systems. [8] [9] The Yellowstone Caldera has the greatest concentration of hydrothermal features in the world, and is an active system ...