At the epicentre of the world's largest explosion at Lake Toba, Sumatra
March 21st 2015 75,000 years ago the explosion must have caused something like a nuclear winter if not a mini ice age. It is believed to be the largest explosion on earth over the last 25 million years and deposited some 6 to 9 m of ash over parts of Asia and Africa. The world and Sumatra would have been very different then. What remains now is the largest crater lake in the world (Danau Toba) filled with a high
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