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A volcanic eruption

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A Quick Tip by Sharrie

  • May 9, 2011
The last one erupted some 74,000 years ago at Lake Toba, Sumatra, Indonesia. That's where my childhood playground was! Yellowstone is expected to erupt anytime soon or possibly not in the next few lifetime. It's due for one though.
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More Supervolcano reviews
review by . May 09, 2011
posted in Earth Watch
Be very afraid!
If we are able to survive a supervolcano eruption, then it'll be a marvel to watch it! Otherwise, God save us all!      In the meantime, if you don't know this already, there are 6 in the world that's due to erupt, 3 of them are in the U.S.! The Yellowstone (The most dangerous of them all) Long Valley (Eastern California, adjacent to Mammoth Mountain) Valles Caldera (Northern New Mexico)              The other 3 …
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Sharrie ()
Ranked #1
I'm a traveler at heart & have been nicknamed Travel Queen by friends & colleagues alike. Traveling has been my life passion for the last decade or so. As we enter a new decade, I'm excited … more
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supervolcano is a volcano capable of producing a volcanic eruption with ejecta greater than 1,000 cubic kilometers (240 cubic miles). This is thousands of times larger than most historic volcanic eruptions.[1] Supervolcanoes can occur when magma in the Earth rises into the crust from a hotspot but is unable to break through the crust. Pressure builds in a large and growing magma pool until the crust is unable to contain the pressure. They can also form at convergent plate boundaries (for example, Toba) and continental hotspot locations (for example, Yellowstone).

The Discovery Channel highlighted six known supervolcanoes:[2] the YellowstoneLong Valley, and Valles Caldera in the United StatesLake TobaNorth SumatraIndonesiaTaupo VolcanoNorth IslandNew Zealand; and Aira CalderaKagoshima PrefectureKyūshūJapan. Although there are only a handful of Quaternary supervolcanoes, supervolcanic eruptions typically cover huge areas with lava and volcanic ash and cause a long-lasting change to weather (such as the triggering of a small ice age) sufficient to threaten theextinction of species.

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