Turkish media said the earthquake was felt in Antalya and neighboring provinces. There were no immediate reports of casualties or damage to buildings.
The USGS reported the quake was 30 miles away from Gazipaşa, Turkey and struck at a depth of 82.1 kilometers.
A 7.0 magnitude earthquake struck the Aegean Sea between the Turkish coast and the Greek island of Samos, killing more than 115 people in late October.
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The Associated Press and Reuters contributed to this report.