Lake at Sumatra is a former volcano crater

31.01.2014

Lake Toba at Sumatra turned out to be a former volcano crater. The lake is 1700 square km, the neighbouring mountain is a part of a volcano’s wall. Scientists have found out that 73 thousand years ago there was a nature catastrophy, one of the largest in history volcano eruptions.

The lake is 1700 square km, the neighbouring mountain is a part of a volcano’s wall.

The volcano emitted about 3 billion tons of sulfur dioxide gas in the atmosphere. After that there were acid raining during 6 years that killed every living thing and the sun was hided by dusty clouds. The scientists believe it caused the first demographic crisis in the history of Homo Sapiens, when only 10 thousand people were left on Earth.