Lake Toba -
Sumatra - Indonesia
Contact Main Samosir
Batak
Lake Toba (Indonesian: Danau Toba) is a lake and supervolcano, 100 kilometres long and 30
kilometres wide, and 505 metres (1,666 ft) at its deepest point. Located in the
middle of the northern part of the Indonesian island of Sumatra with a surface elevation of about 900 metres
(2,953 ft), the lake stretches from 
2°53′N 98°31′E /
2.88°N
98.52°E / 2.88;
98.52 to 2°21′N 99°06′E /
2.35°N
99.1°E / 2.35;
99.1. It is the largest volcanic lake in the
world.[1] In
addition, it is the site of a supervolcanic eruption that occurred about 74,000
years ago,[2]
a massive climate-changing event. The eruption is believed to have had
a VEI intensity of 8. This eruption, believed to have been the largest
anywhere on Earth in the last 25 million years, may have had
catastrophic consequences globally; some anthropologists and
archeologists believe that it killed most humans then alive, creating a
population bottleneck in Central Eastern Africa and India that affected
the genetic inheritance of all humans today
