An earthquake with a magnitude of 4.1 degrees on the open-ended Richter scale shook the capital of Tehran early Sunday, according to reports by Islamic Republic News Agency (IRNA).

The seismological base of the Geophysics Institute of Tehran University recorded the tremor at 02:20 hours local time (1050GMT) with its epicenter at Tehran city.

There were no immediate reports of any casualty or damage to property.

Iran is situated on some of the world's seismic faultlines and quakes of varying magnitudes are are usual occurrences.

Since 1991, over 950 earthquakes have hit the country resulting in the death of 17,600 people and injuries to 53,300 others.