STAPLETON — Federal authorities say another mild earthquake occurred in central Nebraska.
The U.S. Geological Survey says the latest happened at about 6:40 p.m. Sunday about 3 miles under the surface 20 miles east-southeast of Stapleton, not far from Arnold.
It was rated a 2.6 magnitude temblor.
It was the area's fifth quake in a week. No damage or injuries have been reported.