Lake Toba is a volcanic lake with a length of 100 kilometers and 30 kilometers wide, located in North Sumatra Province, Indonesia. In the middle of this lake there is avolcanic island called Pulau Samosir.
Lake Toba has long become an important tourist destination in North Sumatra in addition to Bukit Lawang and Nias, attract domestic and foreign tourists
It is estimated that Lake Toba explosion occurred at about 73000-75000 years agoand an eruption Supervolcano (super volcano) the most recent. Bill Rose and CraigChesner from Michigan Technological University estimate that volcanic materialsspewed out of the mountain as much as 2800 km ³, with 800 km ³ of rock Ignimbriteand 2,000 km ³ of volcanic ash which is expected in the wind to the west for 2 weeks.Volcanic dust in the wind has spread to half the earth, from China to South Africa.Explosion occurred during 1 week and throw the dust up to 10 km above sea level.
This incident caused mass death and the extinction of some species also followed.According to some DNA evidence, this eruption also reducednumber of of people toabout 60 % of the total human population of the earth at that time , which is about 60 million people . The eruption was also contributed to the occurrence of ice ages,although the experts still debate.
After the eruption, the caldera formed which is then filled with water and became what is now known as Lake Toba. Pressure upward by magma that has not come outcause the emergence of Samosir Island
Lake Toba has long become an important tourist destination in North Sumatra in addition to Bukit Lawang and Nias, attract domestic and foreign tourists
It is estimated that Lake Toba explosion occurred at about 73000-75000 years agoand an eruption Supervolcano (super volcano) the most recent. Bill Rose and CraigChesner from Michigan Technological University estimate that volcanic materialsspewed out of the mountain as much as 2800 km ³, with 800 km ³ of rock Ignimbriteand 2,000 km ³ of volcanic ash which is expected in the wind to the west for 2 weeks.Volcanic dust in the wind has spread to half the earth, from China to South Africa.Explosion occurred during 1 week and throw the dust up to 10 km above sea level.
This incident caused mass death and the extinction of some species also followed.According to some DNA evidence, this eruption also reducednumber of of people toabout 60 % of the total human population of the earth at that time , which is about 60 million people . The eruption was also contributed to the occurrence of ice ages,although the experts still debate.
After the eruption, the caldera formed which is then filled with water and became what is now known as Lake Toba. Pressure upward by magma that has not come outcause the emergence of Samosir Island
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