What is a Supervolcano? A supervolcano is a volcano that can produce an eruption of magnitude greater than 8 on the Volcanic ...

On the very bad day in question, one particular volcano, now known as Mount Toba, had been active for a long time. It had bulged up gradually until it towered almost 3,000 feet above the jungle.

may have taken place during a particularly arid period following the Toba supervolcano eruption in Indonesia, a new study published in the journal Nature suggests. It is typically thought that the ...