EDMOND, Oklahoma — An early-morning earthquake rattled parts of central Oklahoma.
The U.S. Geological Survey says the 3.7 magnitude earthquake was recorded at about 7:19 a.m. Sunday near the Oklahoma City suburb of Edmond.
No damage or injuries were immediately reported.
Geologists say earthquakes of magnitude 2.5 to 3.0 are generally the smallest that are felt by humans and that damage is not likely in quakes below magnitude 4.0.
The Oklahoma Geological Survey has said it is likely that many recent earthquakes in the state are being triggered by the injection of wastewater from oil and natural gas drilling operations.