Lake Nyos, Lake Soul Has Been Killed 1800
Lake Nyos, large lake found in Cameroon, West Africa. The depth of this lake reaches 157 m with the terdalamnya 208 meters. There are many people living around Lake Nyos valley. However, in 1986, there was an oddity in the settlement. Around 1700 people die suddenly and simultaneously. Even more strangely, all the people who died was killed in a position while doing a day's work. Some are killed while pumping water, and cooking and some are lost while drinking a glass of water. Some survivors of the incident described what happened on those people died.
He said, the night before the incident, the air suddenly felt warm and smelled like rotten eggs. Society is not too concerned about it. And suddenly the next morning, many corpses when busy with their daily activities. No one knows for sure what the cause of death is strange. But the experts found, if the color of the water of Lake Nyos changed from clear to bright orange color.To find answers, the experts then examined Craten Lake in Oregon. This lake is the largest lake in the world number seven. The extent of 50 square km with a depth of 594 meters. So described if the Empire State put into this lake, will surely sink. Craten lake holds about 19 trillion liters of water. Around 7700 years ago, Mount Mazame the place erupted and threw the top of the mountain. Crater Lake is then formed Craten. However, it turns out Mazame volcanic activity still affects the lake. Because under the lake turns out there are still pools of the former magma that is still hot. The experts found that the water temperature at the bottom of the lake a few degrees warmer, its salt content is also ten times more concentrated and CONTAIN A LOT of CO2. CO2 is then seeps from the crevices of the earth's crust and into the crater that has now become a lake. However, the presence of water has prevented the rise of CO2 into the air. Even if there is little that escapes, still carried by gusts of wind can be lost. So it is not too dangerous.
The process also greatly affect the change of seasons. In winter, the velocity of water will be pushed down because of warmer temperatures below. Conversely in the summer, the velocity of the water will rise to the top. The cycle is then made the emergence of the layers of water of different levels of density. The lowest layer of water is more concentrated than the above. At the very bottom layer of water flowing from the CO2 is the earth's foundation hold. CO2 can not rise higher because of differences in water density in the layer above it. So gathered and accumulated over decades and became very much at the very bottom layer of water.
This phenomenon was later found also in Horseshoe Lake is smaller than Lake Craten. The trees that grow around the lake dries up and eventually die. After investigation, it turns CO2 levels in the lake reached 100 tons / day and soak into the ground. This is what makes the trees around them die. The experts then conduct experiments with digging a little dirt on the lake and tried to light a fire. However, due to its pekatnya CO2 levels, the fire was extinguished immediately brought closer to the ground. It turned out that the accumulation of CO2 which has been very much on the lake finally overflowed and caused the lake becomes extremely dangerous. However, CO2 levels in Horseshoe Lake is not too harmful to humans, because the limit harmful levels is 1.75 million tons. And this will only happen in the event the mountain erupted.
Discoveries which later helped the experts to conclude what happened at Lake Nyos. Night before the event, there is a cliff on the banks of the lake, collapsed and went into the water. It is estimated that these cliff ruins have shaken the layers of water. So the most basic layer is filled with CO2 to rupture and drain large amounts of CO2 into the surface of the lake.
The next morning the flow of CO2 is then entered the residential area. And because CO2 is colorless and odorless, people are not aware of his arrival. That is what causes many people who were killed while doing daily activities. CO2 is like a killer who lurks in silence. Perhaps only a few people are aware of the danger of invisible contained in the bottom of the lake that looks very nice on the surface it. Without them knowing it, they have inhaled CO2 derived from the most basic layer of the lake, which has been accumulating for decades. And plenty of people who died because of it.
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