The Toba supervolcano is located on the island of Sumatra in Indonesia. It is known for its massive eruption that occurred approximately 74,000 years ago, which is considered one of the largest volcanic eruptions in Earth's history. This event created the Lake Toba, a large caldera that is now a popular tourist destination. The eruption had significant global effects, including a volcanic winter that likely led to a dramatic drop in temperatures and affected human populations. The Toba supervolcano remains an active geological site, with ongoing research into its potential for future eruptions and its impact on climate and biodiversity.