The quake occurred at 9:44 p.m. local time (1814 GMT) at a depth of 7 kms, with its epicenter at Khoy County, said the media reports.
Several aftershocks occurred after the main quake, with the biggest one measuring 4.2-magnitude, said the Iranian Seismological Center.
The earthquake also led to a power blackout in Khoy County.
According to reports from the earthquake-affected areas, the extent of damage in rural areas was estimated to be severe.