Deadliest lake

Last updated: October 14, 2017 at 1:10 am

Crater Lake Nyos, Cameroon – Deadly eruptions of carbon monoxide emanating from the lake bottom have killed thousands of people. Lake Nyos is one of only three lakes in the world known to be saturated with carbon dioxide (CO2). On August 21, 1986, a limnic eruption (sudden outgassing of CO2) released approximately 1.6 million tonnes of CO2 over the lake and into a series of valleys killing at least 1,700 people and 3,500 livestock within a range of 25 km (16 mi). Based on shore scouring, the wave of water also caused by the eruption reached an estimated height of 24 m (80 ft). A pipe system now vents the gas from the lake.

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