The Disaster and Emergency Management Authority (AFAD) said on its website that the quake occurred at 6.37 a.m. local time (0337GMT) at a depth of around seven kilometers (4.34 miles).
No casualties have been reported so far.
Turkey is among the world's most seismically active zones. Last October, a powerful earthquake with a magnitude of 6.6 struck the Aegean province of Izmir, killing at least 116 people and injuring more than 1,000 others.
