Earthquakes both large and small had rocked the entire island of Sumatra for a year before Mount Toba started to blast out a few small eruptions of steam and ash that blanketed the surrounding jungle.

What is a Supervolcano? A supervolcano is a volcano that can produce an eruption of magnitude greater than 8 on the Volcanic Explosivity Index (VEI). These colossal eruptions can eject more than 1,000 ...

The Youngest Toba eruption was a supervolcanic eruption that occurred around 75,000 years ago at the site of present-day Lake Toba in Sumatra, Indonesia. It is one of the Earth's largest known ...

Toba volcano erupted 74,000 years ago, and is thought to have been the largest eruption in the last 2.5 million years. Some scientists have thought the fallout from the eruption caused a volcanic ...