1986 limnic eruption in Cameroon On 21 August 1986, a limnic eruption at Lake Nyos in northwestern Cameroon killed 1,746 people and 3,500 livestock. 497,638 views on April 5, 2017 — Wikipedia's most-read article that day. Also most read: Thirteen Reasons Why, 13 Reasons Why, Prison Break season 5, Heath Ledger. Wiki link