Earthquakes shook central Oklahoma on Friday.
U.S. Geological Survey say four small quakes hit near Guthrie.
The strongest struck around 3:21 p.m., and was a 3.4. magnitude quake. U.S.G.S. reports the other three quakes ranged in magnitude from 3.0 to 3.2.
Geologists state damage is usually unlikely in quakes of magnitude 4.0 or lower.
There have been no reports of injuries or damage.