Lake Toba has long been a major tourist destination in North Sumatra, Bukit Lawang, Berastagi and Nias, attract domestic and foreign tourists.
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It is estimated that Lake Toba was formed when the explosion about 73,000 to 75,000 years ago and is the eruption (super volcano) the most recent. Bill Rose and Craig Chesner of Michigan Technological University estimate that the total amount of material in the eruption about 2800 km3, about 2000 km3 of ignimbrite flows on the ground, and about 800 km3 of ash that falls as mainly the west. Pyroclastic flow eruption destroyed an area of 20 000 km2, with 600 m thick ash deposits with the main crater.
This incident caused the death and mass extinction of species of living beings. According to some DNA evidence, this eruption also reduced the number of people in about 60% of the total population of the man of the earth at the time, which is about 60 million people. The eruption also caused the ice age, although experts debate again. After the eruption, the caldera formed which is then filled with water and became what is now known as Lake Toba. Magma pressure is not released cause the appearance of the island.
Lake Toba to Samosir Island in the middle.
International multidisciplinary research team, led by Dr Michael Petraglia, revealed in a press conference in Oxford, the United States has found a new archaeological site that is quite spectacular by geologists in the southern and northern India . On the site it was revealed how people survive before and after volcanic eruptions (Toba supervolcano) 74,000 years ago, and evidence of life under the ashes of Mount Toba. Although the source of the rash is 3000 miles, the distribution of the ashes.
For seven years, the project experts from the University of Oxford research ecosystem in India, to search for evidence of life and equipment life they left behind in the arid desert. Area with thousands of hectares of savannah It was only (meadows). While the scattered bones of animals. The team concluded, large areas covered with dust that turns ancient volcanic eruptions.
The spread of volcanic dust was very spacious, found almost everywhere in the world. Derived from an ancient supervolcano eruption, namely Mount Toba. Son suspected in Mount Toba, as evidence of molecular forms of the same volcanic dust in the period since 2100. caldera crater that is now Lake Toba in Indonesia, 3,000 miles from the source of the eruption. In fact, surprisingly enough, he spread out dust must be registered to the North Pole. It reminds the experts, the power of the eruption of Toba super volcano at that time.
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