73,500 years ago, Volcano Toba had one of the biggest volcanic eruptions in history.
This volcano, located on the Indonesian island of Sumatra, unleashed ash all over the globe. The immense amount of ash in the atmosphere managed to block out the sun partially for six years. This created “a volcanic winter” that made it difficult for living things on Earth to survive.
Scientists even think that the eruption of Volcano Toba and the cooling it caused destroyed global food sources and nearly brought humans to extinction. Luckily, humans at this time had enough food stored to keep them alive.
Today, the Toba volcano on Sumatra is inactive and the land is peaceful. It's so peaceful, in fact, that you might never know it was once the site of a historic eruption.
[Source: Volcano’s and Earthquakes]