Largest Quake in State History

Undated – 5.6 magnitude quake shakes east-central Okla.

OKLAHOMA CITY (AP) Authorities say a 5.6 magnitude earthquake has rattled central Oklahoma and been felt as far away as Tennessee.

The U.S. Geological Survey office in Golden, Colorado reports on its website that it detected a 5.6 magnitude quake at 10:53 p.m. local time Saturday. The quake was centered about 44 miles east-northeast of Oklahoma City near the small town of Sparks. If confirmed by USGS, it would be the most powerful quake detected in Oklahoma's history.

Michelann Ooten, a spokeswoman for the Oklahoma Department of Emergency Management, said there were no reports of injuries last night.

Saturday night's temblor followed a tremor recorded around 2:12 a.m. that USGS said was a 4.7 magnitude quake near Prague in southern Lincoln County. The Lincoln County Emergency Management department said in a Facebook posting early Sunday morning said that it had received reports of "very significant damage."