A magnitude 2.8 earthquake centered near Norman, Okla., is believed to be the latest aftershock from a quake recorded last week in the area.
The tremor recorded seven miles southeast of Norman at 12:53 p.m. on Oct. 19 was initially reported as a 2.6 magnitude by the Oklahoma Geological Survey. There were no reports of injuries or damage.
Survey research scientist Amie Gibson says the quake is likely an aftershock from a 4.7-magnitude quake that occurred last week. At least two other aftershocks from that quake, one of the strongest ever reported in Oklahoma, have been recorded.
Gibson said recent seismic activity in neighboring Arkansas makes it difficult to know precisely how many aftershocks can be attributed to the stronger quake.
Gibson said about 40 people have reported feeling recent temblor.
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