Lake Toba Volcanic Eruption

The eruption led to the final formation of one of earths largest calderas the 35x100 km wide toba caldera. About 74 000 years bp more than 2500 cubic kilometers of magma were erupted. Lake toba is 100km long 30km wide and 505 meters deep.

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The toba catastrophe theory suggests the event killed most humans living at the time.

Lake toba volcanic eruption. Danau toba is a large natural lake in north sumatra indonesia occupying the caldera of a supervolcano the lake is located in the middle of the northern part of the island of sumatra with a surface elevation of about 900 metres 2 953 ft the lake stretches from to the lake is about 100 kilometres 62 miles long 30 kilometres 19 mi wide and up to 505 metres. But how did geologists think lake toba formed. Ben beiske flickr these then move up and melt accumulating at the base of the crust and creating a magma reservoir of around 50. After the eruption the ground collapsed and left behind a depression called a caldera which is not filled by lake toba and volcanic domes that have emerged in the time since as seen in this set.

The eruption vei 8 registering as the largest in 25 million years. Lake toba was formed after a super eruption 74 000 years ago. Mount toba ancient volcano located in the barisan mountains north central sumatra indonesia a massive eruption sometime between 71 000 and 74 000 years ago expelled an estimated 2 800 cubic km about 670 cubic miles of ash and lava that event is considered by many volcanologists to be the largest volcanic eruption in all of human history and some scientists maintain that it sent the. Lake toba as seen from the north picture by adonara mucek it is quite an interesting story especially as origin stories go.

The youngest toba eruption was a supervolcanic eruption that occurred around 75 000 years ago at the site of present day lake toba in sumatra indonesia it is one of the earth s largest known explosive eruptions the toba catastrophe theory holds that this event caused a global volcanic winter of six to ten years and possibly a 1 000 year long cooling episode. The site of a super volcano eruption around 70 000 years ago. Toba volcano has produced the largest known volcanic eruption on earth during the past 2 million years. Well what we see at toba is actually a result of 4 huge eruptions imprinted one on top of the other.

The first eruption was around 1 2 million years ago.