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Supervolcanoes

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by

Muna Askar

on 25 February 2014

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Transcript of Supervolcanoes

The End of the World?
A super volcano might be able to destroy mankind. It could have happened before with Toba, which is believed to have erupted sometime between 69,000 and 77,000 years ago. A similar thing might be able to happen again with Yellowstone. The ash by itself could be catastrophic. There is actually a very small chance that Yellowstone will erupt in this century, but that is highly unlikely.
What makes a Volcano a Supervolcano?
Thanks for Watching!
Works Consulted
http://www.pbs.org/wgbh/nova
http://www.pbs.org/wnet/savageearth/volcanoes/index.html
http://www.wired.co.uk/news/archive/2010-05/05/what-would-happen-if-a-super-volcano-erupted
http://www.independent.co.uk/news/science/risk-of-supervolcano-eruption-big-enough-to-affect-the-world-far-greater-than-thought-say-scientists-9040073.html

By Nina, Muna, Rashad, and Sonny
What is a Super Volcano?
Yellowstone
Pros and Cons of
both Volcanoes and
Supervolcanoes.
The Outcome of a Supervolcano Eruption
Images
A super volcano is any volcano capable of producing a volcanic eruption with an ejecta volume (a type of scale used to measure volcanoes) greater than 1,000 km³. This is thousands of times larger than normal volcanic eruptions!
A full-scale eruption of Yellowstone could be up to 1,000 time more powerful than the eruption of Mount St. Helens in 1980
A full-scale eruption of Yellowstone would spew volcanic ash 25 miles up into the air.
In the event of a full-scale eruption of Yellowstone, virtually the entire northwest United States will be completely destroyed.
Toba
The Toba eruption was a super volcanic eruption that occurred sometime between 69,000 and 77,000 years ago! Toba volcano has produced the largest known volcanic eruption on Earth during the past 2 million years.
The eruption led to the final formation of one of Earth's largest calderas, the 35x100 km. wide Toba caldera. Eruptions of this size are extremely rare.
BAD
Pollutes Air
Destroys land and towns

GOOD
Higher Tourism
Fertile Soil
Precious Minerals
Supervolcanos are extremely dangerous. if one were to erupt, the ash and lava would be catastrophic. Fortunately they are very rare. Thanks to scientists and modern day technology, we come close to predicting when the next supervolcano will erupt, though it is not entirely clear.
What makes a Volcano a Supervolcano?
A supervolcano has a much higher ejecta level, a much larger magma chamber, and the volcano itself is much larger. A supervolcano is hundreds of times larger than any regular volcano, and can even completely change life on Earth.
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