Why do geologists believe that part of the African continent will break off in the next 50 million years?

Geologists believe that part of the African continent will break off in the next 50 million years primarily because **it is part of a rift valley**. The East African Rift is an example of a tectonic plate boundary where the continental crust is being pulled apart, which could eventually lead to the formation of new ocean basins and the splitting of the continent.