(NBC NEWS) -- A magnitude-4.3 earthquake shook Oklahoma early Tuesday, the United States Geological Survey reported.
The quake struck at 12:56 a.m. local time (1:56 a.m. ET) around 30 miles northeast of Oklahoma City. It was measured at a depth of 3.1 miles, the USGS said.
A small earthquake of magnitude 3.0 preceded the temblor, and two small tremors with magnitudes of 2.8 and 3.3 rattled nearby within 20 minutes of the initial quake.
According to the USGS, the people in the surrounding areas would have felt light to moderate shaking.
There were no initial reports of damage or injuries.