GCSE AQA GEOGRAPHY B: THE RESTLESS EARTH: SUPERVOLCANOES

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Supervolcanoes

> The last supervolcanic eruption was 74,000 years ago, in Indonesia, where the ash was thrown out 3000km, global cooling was caused of 5 degrees and created a crater larger than the city of London. This eruption created lake Toba, which is 100km long and 50km wide. The impact of this was enough to put the Earth into an ice age and ruin agriculture globally.

> Supervolcanoes are alot harder to spot as they don't have composite sides, but are simply depressions underground. 

> The calderas of supervolcanoes are so large they can only be spotted from space. 

> Yellowstone is an active supervolcano, found in one of America's most famous national parks. The volcano has over 3million people visiting

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