The U.S. Geological Survey reports three small earthquakes have been recorded in northern Oklahoma.
The most recent of the quakes recorded late Friday and early Saturday was a magnitude 2.5 at 11:03 a.m. Saturday near Renfrow, 103 miles north of Oklahoma City. The agency initially rated the temblor at 3.2.
No injuries or damage are reported.
The survey also recorded a magnitude 2.7 quake near Byron at 7:54 a.m. Saturday and a magnitude 2.6 temblor at 11:51 p.m. Friday northwest of Guthrie.
Thousands of earthquakes have been recorded in Oklahoma in recent years, with many linked to the underground injection of wastewater from oil and natural gas production operations. Oklahoma regulators have directed oil and gas producers to close some wells and reduce injection volumes in others.