The epicenter of the quake, with a depth of 8 km, was located at 34.25 degrees north latitude and 45.62 degrees west longitude, acording to Iran's Seismological Center.
The jolt was felt in the towns of Sarpol-e Zahab, Qasr-e Shirin and Kermanshah, and in the Uramanat region, IRNA said.
No casualties or damages have been reported so far.