An earthquake measuring 4.3 on Richter scale hit Larijan district and its vicinity in northern province of Mazandaran Sunday morning, IRNA reported.
The Seismological Center affiliated to Geophysics Institute of Tehran University registered the tremor at 04:25 hours local time (2355 GMT Saturday) in an area located nine km deep in Damavand region.
The epicenter of the earthquake was recorded at 35.95 degrees northern latitude and 52.30 eastern longitude in Gazanak district.
There is no immediate report on possible damage caused by the tremor.
Iran sits astride several major faults in the Earthˈs crust, and is prone to frequent earthquakes, many of which have been devastating.
The worst in recent times hit Bam in Kerman province in December 2003, killing 31,000 people - about a quarter of its population - and destroying the cityˈs ancient mud-built citadel.
The deadliest quake in the country was in June 1990 and measured 7.7 on the Richter scale. About 37,000 people were killed and more than 100,000 injured in the northwestern provinces of Gilan and Zanjan. It devastated 27 towns and about 1,870 villages.