The seismological base of Tehran University's Geophysics Institute registered the quake at 11:13 hours local time.
There were no immediate reports of any casualties or damage to property.
A powerful earthquake measuring 5.5 degrees on the Richter scale struck the northern region of Iran on May 28 and which was felt in almost half of the country. At least 30 people were killed and 250 others injured.
The quake damaged 27 villages in Mazandaran by 100 percent.
Some 297 aftershocks have since been felt in various parts of the country, mostly in Mazandaran.
Iran is situated on some of the world's most active seismic faultlines and quakes of varying magnitudes are of usual occurence.
... Payvand News - 6/13/04 ... --