An earthquake measuring four degrees on the open-ended Richter scale jolted Naein in the central province of Isfahan on Friday, IRNA reported.
The seismological base of the Geophysics Institute affiliated to Tehran University recorded the quake at 10:40 pm local time on Friday (18:10 GMT) with its epicenter in an area in Naein, near central Isfahan province.
There are no immediate reports on probable damages or casualty inflicted by the quake.
Iran is situated on some of the world's seismic faultlines and slight tremors are common.
Since 1991, over 950 earthquakes have hit the country resulting in the death of 17,600 people and injuries to 53,300 others.
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