After the eruption you will be faced with the rule of 4's basic survival skills
Protect yourself
Limnic eruptions only occur in deep, stable, tropical, volcanic lakes
Some features of limnically active lakes include:
To date, this phenomenon has been observed only twice.
The first was in Cameroon at Lake Monoun in 1984, causing the asphyxiation and death of 37 people living nearby. A second, deadlier eruption happened at neighboring Lake Nyos in 1986, this time releasing over 80 million cubic meters of CO2 and killing between 1,700 and 1,800 people.
For a limnic eruption to occur, the lake must be nearly saturated with gas.
In the two known cases, the major component was CO2, however, in Lake Kivu, scientists are concerned about the concentrations of methane gas as well.
The gas may come from
CO2 may come from volcanic gas emitted from under the lake or from decomposition of organic material.
Once the lake is saturated with CO2
It is very unstable. A trigger is all that is needed to set off an eruption. In the case of the 1986 eruption at Lake Nyos, landslides were the suspected triggers, but an actual volcanic eruption, an earthquake, or even wind and storms are other possible triggers. In any case, the trigger pushes some of the saturated water higher in the lake, where the pressure is insufficient to keep the CO2 in solution. Bubbles start forming and the water is lifted even higher in the lake, where even more of the CO2 comes out of solution. This process forms a column of gas. At this point the water at the bottom of this column is pulled up by suction, and it too loses its CO2 in a runaway process. This eruption pours CO2 into the air and can also displace water to form a tsunami.
Source: http://www.americansnetworkingtosurvive.org/Limnic_Eruption.html
Protect yourself
Limnic eruptions only occur in deep, stable, tropical, volcanic lakes
Some features of limnically active lakes include:
- CO2-saturated incoming water
- A cool lake bottom indicating an absence of direct volcanic interaction with lake waters
- An upper and lower thermal layer with differing CO2 saturations
- Proximity to areas with volcanic activity
To date, this phenomenon has been observed only twice.
The first was in Cameroon at Lake Monoun in 1984, causing the asphyxiation and death of 37 people living nearby. A second, deadlier eruption happened at neighboring Lake Nyos in 1986, this time releasing over 80 million cubic meters of CO2 and killing between 1,700 and 1,800 people.
For a limnic eruption to occur, the lake must be nearly saturated with gas.
In the two known cases, the major component was CO2, however, in Lake Kivu, scientists are concerned about the concentrations of methane gas as well.
The gas may come from
CO2 may come from volcanic gas emitted from under the lake or from decomposition of organic material.
Once the lake is saturated with CO2
It is very unstable. A trigger is all that is needed to set off an eruption. In the case of the 1986 eruption at Lake Nyos, landslides were the suspected triggers, but an actual volcanic eruption, an earthquake, or even wind and storms are other possible triggers. In any case, the trigger pushes some of the saturated water higher in the lake, where the pressure is insufficient to keep the CO2 in solution. Bubbles start forming and the water is lifted even higher in the lake, where even more of the CO2 comes out of solution. This process forms a column of gas. At this point the water at the bottom of this column is pulled up by suction, and it too loses its CO2 in a runaway process. This eruption pours CO2 into the air and can also displace water to form a tsunami.
Source: http://www.americansnetworkingtosurvive.org/Limnic_Eruption.html