Ethiopia's Rift Valley is one of the most seismically active regions in the world. For several weeks, frequent tremors, including one measuring 5.8 on the Richter scale, have been shaking the rural regions of Afar and Oromia. There are fears they could cause a major dam to collapse or lead to the eruption of a volcano, Mount Dofan, so the authorities have evacuated tens of thousands of people.
