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Limnic Eruption

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by

Larissa Macias

on 3 September 2013

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Transcript of Limnic Eruption

Limnic Eruption
Where the Limnic Eruptions have occurred in the world!
What damage was caused to the environment, the people and the economy?
The environment:
It has killed animals and people.
The eruption has given the air a terrible smell.
The lakes are now
contaminated
.
The people:
The contaminated water cannot be used by farmers to
irrigate
their crops.
The survivors are left with brain damage and breathing problems.
The economy:
It has destroyed crops in the area which can no longer be sold, leaving families with less money for everyday essentials.
Why this type of disaster occurs in this area.
Cameroon is a country with high volcanic activity. For instants Mount Cameroon is an active volcano, which recently saw an eruption occurring on the 3rd of February 2012. This area of the world holds all the ingredients necessary for Limnic Eruptions to explode.
What is a Limnic Eruption
A Limnic eruption occurs when there is a build-up of
carbon dioxide
(
Co2
) at the bottom of a lake due to the flow of lava from volcanic activity which
saturates
the water causing it to rise to the surface at extremely high speeds. This release of carbon dioxide into the air causes death by
asphyxiation
.
Information on what occurred during the two eruptions.
In 1984 the first known Limnic Eruption was recorded in Lake Monoun in Cameroon, which killed 37 people.

The second Limnic Eruption was in Lake Nyos Cameron in 1986. This eruption was much more deadly than the one in Lake Monoun, killing between 1700 to 1800 people.




Only two Limnic Eruptions have occurred in the world, both erupting in cameroon, which is located in Africa. Scientists believe there could be a possibility of another Limnic
Eruption
happening in Lake Kivu also in Cameroon. They think this because the lake has the same characteristics that is required for this type of eruption to occur.
Map of where both of these eruptions have occurred.
Before and After shot of Lake Monoun
Video of a Limnic Eruption
Glossary
Limnic
: bodies of freshwater, such as lakes and rivers.
Co2
: (Carbon dioxide) a heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis.
Asphyxiation
: a cause to die or lose consciousness by impairing normal breathing, as by gas or other noxious agents; choke; suffocate;smother.
Eruption: a sudden outburst or out break.
Contaminated
: to mix something clean and make it unclean.
Irrigate
: to supply land with water.
Saturate
: to soak thoroughly or completely: to saturate a sponge with water.


Bibliography
also in Cameroon
http://www.kidsdiscover.com/did-you-know/exploding-lakes/

http://science.howstuffworks.com/environmental/earth/geophysics/lake-nyos.htm

http://iflood.com/science-nature/weather/tsunamis/facts-about-limnic-eruption/
Full transcript