AGRA, Okla. (AP) - A small earthquake has occured in Lincoln County for the second time in three days.

The U.S. Geological Survey reports that a quake registering at 2.8 on the Richter scale was centered in Agra in east-central Oklahoma at 10:32 a.m. Tuesday.

A quake measuring 3.4 on the Richter scale was reported Sunday near Sparks, about 25 miles south of Agra.

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