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Toba Caldera is one of twenty geoparks in Indonesia, [2] and was recognised in July 2020 as one of the UNESCO Global Geoparks. [3] [4] [5] Lake Toba is the site of a supervolcanic eruption estimated at VEI 8 that occurred 69,000 to 77,000 years ago, [6] [7] [8] representing a climate-changing event.
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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.
To turn Lake Toba into a top tourism spot, the agency requires a budget of 21 trillion Rupiah (US$1.3 billion). [ 5 ] The BPODT's exercise of authority has faced significant criticism by indigenous communities who raised concerns about being excluded from the development process, viewing the agency's projects as unilateral decisions not taking ...
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]
Lake Sidihoni is a lake located within Samosir Island which itself is an island within Lake Toba, in North Sumatra, Indonesia and is therefore notable for being a "lake on an island in a lake on an island".
A study conducted in 2001 determined that Tangkuban Perahu had erupted at least 30 times in the previous 40,750 years. Studies of the tephra layers within three kilometres of the crater revealed that 21 were minor eruptions and the remaining were significant eruptions.