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A supervolcano is a volcano that has had an eruption with a volcanic explosivity index (VEI) of 8, [1] the largest recorded value on the index. This means the volume of deposits for such an eruption is greater than 1,000 cubic kilometers (240 cubic miles). [2] Location of Yellowstone hotspot over time.
Prior to this eruption the peak had not even been recognized as a volcano. Over 3,000 people were killed, and it has become a benchmark for studying large Peléan eruptions. [37] Mount Sinabung, Indonesia. History of its eruptions since 2013 are showing the volcano emits pyroclastic flows with frequent collapses of its lava domes. [38] [39]
In this case Yellowstone could be expiring. It could be another 1–2 million years (as the North American Plate moves across the Yellowstone hotspot) before a new supervolcano is born to the northeast, and the Yellowstone Plateau volcanic field joins the ranks of its deceased ancestors in the Snake River Plain. [12]
The Italian city of Naples has the worst luck when it comes to volcanoes. It sits less than six miles west of Mount Vesuvius, which most infamously buried Pompeii nearly 2,000 years ago.
A supervolcano is defined as a volcano that has experienced one or more eruptions that produced over 1,000 cubic kilometres (240 cu mi) of volcanic deposits in a single explosive event. [34] Such eruptions occur when a very large magma chamber full of gas-rich, silicic magma is emptied in a catastrophic caldera-forming eruption.
A complex volcano, also called a compound volcano or a volcanic complex, is a mixed landform consisting of related volcanic centers and their associated lava flows and pyroclastic rock. [1] They may form due to changes in eruptive habit or in the location of the principal vent area on a particular volcano. [ 2 ]
Sunset Crater Volcano National Monument is a U.S. national monument created to protect Sunset Crater, a cinder cone within the San Francisco Volcanic Field. [14] The monument is managed by the National Park Service in conjunction with nearby Wupatki National Monument.
A supervolcano is a type of volcano. Supervolcano may also refer to: Supervolcano, a 2005 television disaster film; Supervolcano, a series of novels by Harry Turtledove
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