An earthquake measuring 3.7 degrees on the open-ended Richter scale shook the city of Roudbar in the northern province of Gilan early Tuesday, IRNA reported from Tehran.

The seismological base of the Geophysics Institute, affiliated to Tehran University, said the tremor with its epicenter 10 km north of Roudbar, occurred at 02:12 hours local time (2242 GMT on Monday).

Meanwhile, another earthquake, measuring 3.5 degrees on the Richter scale jolted south of Damavand and Firouzkouh cities in Tehran province on Monday.

The seismological base said the tremor occurred at 23:58 hours local time (2028 GMT).

There were no reports of any casualty or damage caused by the quakes.

Iran is situated on some of the world's most active seismic fault lines and quakes of varying magnitudes are of usual occurrence.

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