Scientists have discovered that all the vegetation around was destroyed, the scientists saw more dead bodies home animals. All the survivors indicated the smell of rotten yaitsi sudden warming of the air, that seems to confirm about the eruption. For all that, no one saw smoke and lava. A similar lake located in Oregon in the Nat reserve, it is well known as Crater Lake. Its area is 50 square kilometers, the lake holds 19 trillion gallons of water just reaches into the depths of 594 m, making it a 7 on the depth of the lake in the world. In ancient times, over-fitting landscape Mount Mazama dominated its height 3700 meters 7700 years ago committed a terrible eruption of the volcano collapsed top, having created funnel-shaped crater. After some time in the rain trough and thawed water formed a lake.

To still hot lava is about 12 km beneath. The relief is experiencing changes, for all that they are not visible, because that is hidden under water. The bottom is covered with sharp rocks, it's lava solidified in contact with water. The lake water has a carbon gas, this gas comes from the depths, where the lava flows. In Lake Nyos is also stored carbon dioxide. Each year thousands of tons of water coming carbon dioxide. Probably, this gas and killed people in Cameroon? In 2006, gas was an occasion goduvulkanichesky catastrophic death of three tourists at Mamontovs lakes in California. A small village situated in the crater of an active volcano Longwell.