Mount Toba, located on the Indonesian island of Sumatra, is one of the world’s largest and most active volcanoes. The eruption of Mount Toba some 74,000 years ago was the largest volcanic eruption in the last 25 million years, and is thought to have caused a global volcanic winter that may have resulted in the deaths of up to 90% of the human population.
Mount Toba is a stratovolcano, meaning that it is made up of layers of ash, lava …