A magnitude 5.6 earthquake rattled the central U.S., on Saturday morning, striking northwestern Oklahoma.
The quake occurred shortly after 7 a.m. CDT, about 9 miles northwest of Pawnee, Oklahoma, the United States Geological Service said.
According to reports, the earthquake was felt from parts of Texas to as far north as Minnesota.
No immediate damage or injuries were reported.
If the preliminary 5.6 rating holds, the quake will tie Oklahoma's strongest earthquake (5.6 magnitude in 2011).
At least two aftershocks were reported.