An earthquake measuring 3.2 degrees on the open-ended Richter scale jolted the southern city of Larestan on Sunday morning, IRNA reported from Shiraz.

The seismological base of the Geophysics Institute, affiliated to Tehran University, said the tremor, with its epicenter 270 kilometers south of the city of Shiraz, occurred at 09:18 hours local time (04.48 GMT).

Meanwhile, two other earthquakes measuring 3.3 and 3.5 degrees on the open-ended Richter scale also shook the city at 20:40 hours local time (16.10 GMT) and 23:08 hours (18,38 GMT), respectively.

There were no reports of casualties or damage.

Since 1991, over 950 earthquakes have hit the country resulting in 17,600 deaths and 53,300 injuries.

Quakes shake Razan, Esfarayen cities

An earthquake with an intensity of 3.5 degrees on the open-ended Richter scale shook the city of Razan, south of Qazvin province, on Sunday, IRNA reported.

The seismological base of the Geophysics Institute affiliated to Tehran University registered the quake at 08:46 hours local time (04.16 GMT).

Meanwhile, another earthquake measuring 3 degrees on the Richter scale jolted Esfarayen city, in the northeastern province of Khorasan, on Sunday.

The seismological base of the Geophysics Institute affiliated to Tehran University said the tremor, with its epicenter 240 kilometers northwest of Mashhad, occurred at 07:35 hours local time.

There were no immediate reports of probable damage or casualties caused by the two quakes.

Iran sits on some of the world's active seismic faultlines and tremors of a mild magnitude are almost a daily occurrence.

Since 1991, at least 17,000 Iranians have died as a result of earthquakes.

Quake jolts city of Semnan

An earthquake measuring 3.5 degrees on the open-ended Richter scale jolted the northeastern city of Semnan on Sunday morning, IRNA reported.

The seismological base of the Geophysics Institute, affiliated to Tehran University, said the tremor, epicentered in an area east of the city of Semnan, occurred at 05:01 hours local time (0031 GMT).

There were no reports of casualties or damage.

Since 1991, over 950 earthquakes have hit the country resulting in 17,600 deaths and 53,300 injuries.