Key Findings:
Severe flooding in Nairobi, Kenya, peaked between May 1st and May 3rd, primarily on the city’s eastern edge.
Based on population data from the Facebook platform, provided by Data for Good at Meta, and satellite image analysis from UNOSAT, neighborhoods located around the central urban area saw consistent rates of increase in their total population compared to a 90-day pre-event baseline, indicating probable displacement.
In the Kiambu area north of Nairobi, the post-flooding daily population was consistently 5% greater relative to baseline than the pre-flooding daily peaks. Most of these areas of consistent daily percentage increase were detected with 95% or greater confidence.
