EDMOND, Okla. (AP) _ At least three earthquakes have shaken parts of central and northern Oklahoma, including a magnitude 3.2 temblor reported near Edmond.
The U.S. Geological Survey says the earthquakes were recorded Wednesday. No injuries or damage were reported.
One earthquake was recorded shortly before 9 a.m. about four miles northeast of Edmond at a depth of about three miles. A 3.1 magnitude quake was recorded at 4:38 a.m. about seven miles southeast of Cherokee in Alfalfa County. It was recorded at a depth of three miles.
A 2.8 magnitude earthquake was recorded at 1:20 a.m. about 18 miles northwest of Fairview in Major County at a depth of about four miles.
Geologists have concluded many earthquakes are likely triggered by the injection of wastewater from oil and natural gas drilling operations.