Toba eruption was the Earth's colossal volcanic event

Youngest Toba eruption was enormous.

The eruption occurred about 74,000 years ago in Sumatra.

Lake Toba formed in the caldera left by the eruption.

This eruption lasted roughly nine to fourteen days in summer.

At least 2,800 cubic kilometers of volcanic material erupted.

Ash fall blanketed over 38 million square kilometers of Earth.

Ice core samples reveal sulfate from Toba eruption.

Volcanic clouds soared up to 32 kilometers high during eruption.

Ice core samples show sulfate events linked to eruption.

Lake Toba formed after the Youngest Toba eruption.

The Youngest Toba eruption released about 3,800 cubic kilometers of material.