Toba lake from volcanoes

Toba volcano has produced the largest known volcanic eruption on earth during the past 2 million years.

About 74,000 years BP, more than 2500 cubic kilometers of magma were erupted. The eruption led to the final formation of one of earths largest calderas, the 35x100 km wide Toba caldera. Eruptions of this size are exptremely rare and are called supervolcano-eruptions. The Toba caldera is in fact the Earth's largest Quaternary caldera. It was formed during four major Pleistocene ignimbrite-producing eruptions beginning at 1.2 million years ago and culminating with the colossal Young Toba Tuff (YTT) eruption about 74,000 years ago. The YTT emplaced about 2500-3000 cu km (dense rock equivalent) of ignimbrite and airfall ash from vents at the NW and SE ends of present-day Lake Toba.
After the YTT eruption, resurgent doming formed the massive Samosir Island and Uluan Peninsula structural blocks. Additional post-YTT eruptions include a series of lava domes, the growth of the solfatarically active Pusukbukit volcano on the south margin of the caldera, and the formation of Tandukbenua volcano at the NW-most rim of the caldera. Lack of vegetation suggests that this volcano may be only a few hundred years old.



source: volcano discovery

Lake Toba and the surrounding community.

Toba lake region is one of the flagship tourism regions of Indonesia located in the northern Sumatra province in this area include administratife seven districts namely North Tapanuli, Humbang Hasundatan, Toba, Samosir Simalunggun, Karo, Dairi area and the entire Lake Toba own approximately 372,681 hectares covering 259,721 hectares of land and 112,960 hectares of water (water body)

Besides tourism function toba lake area as critical to life North Suamatera Province there are 19 rivers that drain water from the water catchments around the lake into the lake toba water bodies with only one river which is the release of water from this lake is a river which empties into the shavings east coast of North Sumatra. The river water is used to hone hydropower ASAHAN Which is one supplier of electricity in the province of North Sumatra.

Toba lake an important role in the economic multiplier effect on the region created of the existence of international bersekala tourism activities toba lake as trade and service activities related pelayanaan tourism. Deep tourism sector recorded object 12 units 16 units of nature tourism and cultural tourism history of religious tourism 3 units and 1 unit of forest or plantation tours sementar services pelayanaan of 101 restaurants, 188 hotel 200 souvenir shops 5 money changer 10 travel agents and 8 disco 6 karoke.

Cultural Tourism are: 1. Batak traditional dance called tortor, sculpture Sigale-Gale and cultural heritage monuments hobo.

2. Traditional music called gondang Batak (ogung), sarune, lute and more.

Seeing a very strategic role since 1990 the government sumatera northern region has issued a decree ordering the number 1 on the region toba lake. This legislation aims to achieve environmental maintenance and toba lake area utilization optimally balanced harmonious and sustainable through structuring and development control implemented by various agencies government and in an integrated society.

This legislation contains various provisions in the settlement of the area include the mandate settlement area in the general plan and spatial development plan provisions in the arrangement include the environment settings in the community activities that can toba lake disrupt fiber sustainability provisions in settlement building and structuring industrial buildings. Regulation No 1 / 1990 was also equipped with provisions implementation and monitoring as well as penal provisions


Regulation of lake toba environment crucial for the sustainability of tourism lake toba. With these destinations remain and can be enjoyed by our grandchildren and also the subsequent domestic and foreign tourists.

Toba Lake In North Sumatera

Lake Toba in North Sumatra is located precisely in Toba Samosir regency. Lake Toba is a beautiful lake where there is some recreation. Among Batu Gantung, which is hanging in Parapat, Tomok place frequently visited by tourists in foreign and local tourists. Lake Toba is also often save a lot of mystery. Perhaps according to folklore, Lake Toba result occurred because the Fish incarnation nymph changed into a very beautiful wedding and the results of their produce offspring. Where he married a young man with a burly-looking and, day-to-day work as a farmer. And it is for hobby fishing. Youth Disuatu when this is working until noon and will not kunjung arrived. While his wife is already making the food and daughter to deliver food to the father. But as the workplace (ladang) so far, the children eat the food and hunger for his father. Then the children arrived at the place where his father worked and the food has been exhausted. Father so angry to see big spend on food is by daughter. Until - until the words come out Botulmaho anakni Ikan (Basic child offspring of fish). Then the children go home to the while crying and asking for the mother, correct me if fry. Where words that should not come out according to the agreement before they married. Hear the mother was angry and told his son to go to a mountain that is very high. and the mother prayed that rain, and rain was coming down to 3 days 3 nights. Flood the came and then Lake toba is happens. That's the story according to the occurrence of Lake Toba folklore. .