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What event in 1986 released about 0.15 km3 of gas from Lake Nyos in about an hour?

A) Volcanic eruption
B) Earthquake
C) Gas eruption
D) Tsunami

1 Answer

7 votes

Final answer:

The 1986 event that released around 0.15 km³ of gas from Lake Nyos was a gas eruption, specifically involving the release of carbon dioxide gas caused by volcanic activity beneath the lake.

Step-by-step explanation:

In 1986, about 0.15 km³ of gas was released from Lake Nyos over the course of an hour due to a gas eruption, making the correct answer C) Gas eruption.

This tragic event resulted in the release of a large volume of carbon dioxide gas from the depths of the lake, which was saturated with CO₂ due to ongoing volcanic activity beneath it. A controlled degassing vent has since been installed to prevent a recurrence of a similar disaster.

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