Additional information added (first version posted at 22:30)
The earthquake on Thursday evening in the northeastern city of Neishabour in Khorasan-e Razavi Province left 100 people injured, IRNA reported.
Head of province Emergncy situations department, Hojatali Shayanfar said on Thursday that 17 people have been hospitalized and other 83 were treated and sent home.
According to Farahmand, the majority of injured people suffered from fractures in different parts of their bodies.
According to seismological center of Tehran University the quake occurred at 12:35 GMT near the city of Neishabour.
Iran is located on major seismic fault lines and is prone to frequent earthquakes.