About five million children, pregnant and breastfeeding women, have been acutely malnourished, it added.
The UN Office for the Coordination of Humanitarian Affairs (OCHA) said the number of people fleeing the war in Sudan has surpassed 7.4 million.
The dams in question are the Jaza Dam – between the partly destroyed city of Darna and Benghazi – and the Qattara Dam near Benghazi.
The quake has left at least four people dead and 36 others injured, according to news reports quoting civil protection authorities.
Some 23,000 people have fled the Democratic Republic of the Congo (DRC) since renewed fighting between government troops and rebel militia in the northeast.
More than 35,260 people have been forced to take shelter in 62 displacement sites established by the authorities.
Around 60 to 70 per cent of livestock-rearing households have seen their animals perish, grazing land damaged, or water supplies contaminated.
