[link to volcans.blogs-de-voyage.fr]
Nyiragongo (République Démocratique du Congo): le volcan n’est pas la seule menace // The volcano is not the only threat

...Lake Kivu should not be forgotten either with its enormous quantities of methane and carbon dioxide. Experts say seismic activity could release that into the atmosphere and cause a human disaster. During the last eruption, lava caused the explosion of service-stations and there are today more ammunition depots...
However, the inhabitants do not trust the observatory and they say they will have to fend for themselves if an eruption happens. They remember that before the last eruption there were signs around the volcano that something was going to happen. Villagers found their banana beer fermenting far more quickly because of raised ground temperatures and some children were asphyxiated by poisonous gases...