 <translate> The relevant information is: On 21 August 1986, a limnic eruption at Lake Nyos in northwestern Cameroon killed 1,746 people and 3,500 livestock. So, the answer is 3,500. <yor> Ìsọfúnni tó kàn ni pé: Ní August 21, 1986, ìbúgbàù kan tó wáyé ní Lake Nyos ní àríwá ìwọ̀ oòrùn Cameroon pa èèyàn 1,746 àti ẹran ọ̀sìn 3,500. Nítorí náà, ìdáhùn náà ni 3,500. 