Earth Science

by alexis123110
Last updated 6 years ago

Discipline:
Science
Subject:
Earth Sciences

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Earth Science

Toba Volcano

Effects:- Created a bottleneck in human evolution. (reduced the worlds population to about 10,000- Caused a 6-10 year "volcanic winter".- Deposited an ash layer 15 centimeters thick over South Asia.

Eruption:- Occured 67,500 to 75,500 years ago.- Took place in Sumatra, Indonesia.- Estimated to have been a VEI (volcanic explosivity index) of 8.- Was one of the largest eruptions in the last 25 million years.- Supervolcanic eruption.

Facts:- It was the latest of 3 major eruptions that occured at Toba in the last 1 million years.- The Toba eruption caused a crater lake; it is now called Toba lake.


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