4.7 magnitude earthquake shakes Oklahomans awake
MEDFORD, Okla. - A 4.5 magnitude earthquake that hit Thursday morning has been upgraded to a 4.7.
The quake, centered in Grant County near Medford, hit around 3:49 a.m.
It was felt as far east as Tulsa, Broken Arrow, and Claremore. There have been no reports of any injury or damage.
"This one must've been a pretty strong one," said Crystal Hillary Lopez who was in Claremore.
"The decor on my bedroom wall was shaking up! My whole bed was shaking and it woke me up!"
2.5 to 3.0 magnitude earthquakes are usually the smallest quakes felt by humans. 4.0 earthquakes can cause damage.
More than a week ago, a 4.7 magnitude quake shook Alfalfa County.
State officials recently named Oklahoma as one of the top earthquake prone areas in the world. The U.S. Geological Survey blames fracking for the frequency of earthquakes in the Sooner State.