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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]
Yellowstone hotspot, Idaho; Bruneau-Jarbidge volcanic field; 10.0 to 12.5 Ma (Ashfall Fossil Beds eruption). [65] Anahim hotspot, British Columbia, Canada; has generated the Anahim Volcanic Belt over the last 13 million years. Yellowstone hotspot, Owyhee-Humboldt volcanic field, Nevada/ Oregon; around 12.8 to 13.9 Ma. [65] [70]
Year Eruption Source(s) 71,000 to 250,100+ Mount Tambora: 7 Indonesia: 1815 1815 eruption of Mount Tambora, Year Without a Summer: 36,000+ Krakatoa: 6 Indonesia: 1883 1883 eruption of Krakatoa: 30,000 Mount Pelée: 4 Martinique: 1902 1902 eruption of Mount Pelée: 23,000 Nevado del Ruiz: 3 Colombia: 1985 Armero tragedy: 20,000~ (estimated ...
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 most recent volcanic eruption occurred in Yellowstone approximately 650,000 years ago resulting in a 30- by 45-mile caldera, or basin. ... The 10,000 year old Grand Canyon of Yellowstone ...
Scientists working in Yellowstone National Park say the supervolvcano underneath may blow sooner than thought and could wipe out life on the planet. Yellowstone supervolcano may be only decades ...
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] The Yellowstone Caldera is above a continental hot spot, the Yellowstone mantle plume. [8]
Eruptions the size of that at Lake Toba 74,000 years ago, at least 2,800 cubic kilometres (670 cu mi), or the Yellowstone eruption 620,000 years ago, around 1,000 cubic kilometres (240 cu mi), occur worldwide every 50,000 to 100,000 years. [1] [n 1]