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Location of Lake Toba shown in red on map. The Toba eruption (the Toba event) occurred at what is now Lake Toba about 73,700±300 years ago. [15] It was the last in a series of at least four caldera-forming eruptions at this location, with the earlier known caldera having formed around 1.2 million years ago. [16]
Therefore, mean depth figures are not available for many deep lakes in remote locations. [9] The average lake on Earth has the mean depth 41.8 meters (137.14 feet) [9] The Caspian Sea ranks much further down the list on mean depth, as it has a large continental shelf (significantly larger than the oceanic basin that contains its greatest depths).
Lake Toba is known to be up to 500 metres (1,600 ft) deep in many places; however, depth traces by the search team indicated depths of up to 1,600 metres (5,200 ft), which is far beyond the 350-metre (1,150 ft) maximum working depth of the deployed Remote Observation Vehicle, and no traces of the ship were found.
Landsat image of Lake Toba, Indonesia, the largest volcanic crater lake in the world. A well-known crater lake, which bears the same name as the geological feature, is Crater Lake in Oregon. It is located in the caldera of Mount Mazama. It is the deepest lake in the United States with a depth of 594 m (1,949 ft).
Lake Toba is the resulting crater lake The Toba eruption (also called the Toba supereruption and the Youngest Toba eruption ) was a supervolcanic eruption that occurred about 74,000 years ago, during the Late Pleistocene , [ 2 ] at the site of present-day Lake Toba , in Sumatra , Indonesia .
The most recent eruption, which occurred 70,000 years ago was among the largest known eruptions ever. Uluan is located on the Porsea caldera, a part of the volcano that erupted approximately 800,000 years ago. [1] Parapat, the primary transit point for tourists going across the lake to Samosir Island, is located on Uluan.
Samosir, or Samosir Island, is a large volcanic island in Lake Toba, located in North Sumatra Province on the island of Sumatra in Indonesia. Administratively, Samosir Island is governed as six of the nine districts within Samosir Regency. The lake and island were formed after the eruption of the Toba supervolcano some 75,000 years ago. [2]
The Caribbean plate is a mostly oceanic tectonic plate underlying Central America and the Caribbean Sea off the northern coast of South America. Roughly 3.2 million square kilometres (1.2 million square miles) in area, the Caribbean plate borders the North American plate, the South American plate, the Nazca plate and the Cocos plate.