Congo's Nyiragongo volcano exploded in a massive eruption on Jan. 18, instantly killing 45 people in the city of Goma. In the aftermath, burning lava caused unearthed storage tanks at a gas station to explode when large numbers of people were attempting to siphon off fuel for their vehicles. An additional 50 people were killed in the explosion. UN estimates of the displaced and homeless run as high as 350,000.