A group of scientists selected from the University of Nairobi and Institute of Meteorological Training Research has warned of an impending explosion along Suswa-Narok in coming weeks.
Transport menace has been experienced in the region for the last couple of days, with a crack believed to be emanating from Mt. Longonot splitting the main Highway.
To avert a major crisis including the loss of lives, the scientists now want the government to close Mai Mahiu- Narok road besides suspending development projects in South Rift.
"The Naoro-Elmentaita-Nakuru-Magadi areas are very unstable. This is the reason we see fumes from Mt. Longonot and Magadi experiencing earthquakes," said Prof Eric Odada of UoN.
According to Odada, Rift Valley being the largest opening in the world, instability caused by tectonic and seismic movements was a ticking time bomb.
"The crack can be deep and may cause Rift Valley to move up. This will create ridges in Kabete and eventually sink villages thus splitting the country," he added.
Another scientist, George Krhoda, a professor of geography and environmental studies at UoN, said the surface of the earth has many cracks that begin to manifest during rainy seasons.