Infact
88 / 100
True Cameroon Africa

In 1986, a volcanic lake in Cameroon released a carbon dioxide gas cloud that killed 1,746 people.

Infact verdict: True (88/100).

The claim about the Lake Nyos disaster in Cameroon, where a carbon dioxide gas cloud killed 1,746 people, is verified by multiple reliable sources including Wikipedia and Britannica. This event, known as a limnic eruption, occurred on August 21, 1986. These expert sources provide a detailed account of the incident, aligning with the claim.

June 25, 2026 Language: en 1 claim analyzed
How is this score determined? →

Individual claims

88
True historical
In 1986, a volcanic lake in Cameroon released a carbon dioxide gas cloud that killed 1,746 people in minutes.
The claim is corroborated by reliable sources including Wikipedia and Britannica, which detail the Lake Nyos disaster on August 21, 1986. A limnic eruption released a large amount of carbon dioxide, killing 1,746 people.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 95
Web Consensus Weight 50
Source Quality Score 90
Source Quality Weight 25
Llm Reasoning Score 95
Llm Reasoning Weight 25
Weighted Total 88
Evidence Summary Verified by Wikipedia and Britannica.

Related fact-checks

Check any claim, instantly

Free AI-powered fact-checking — on every platform you already use.