The 4.9 magnitude jolt also damaged several homes and other buildings while sending scores of victims to hospitals when it struck at 7:22 a.m. local time.
Regional officials said that scores of buildings sustained damage, including some that collapsed. Saturday’s initial jolt was followed by several minor aftershocks.
The Iranian Seismological Center reported the tremor was centered about 10 miles from Dorood, a town in Lorestan province.
The U.S. Geological Survey determined the epicenter was only about 15,000 feet beneath the surface, which is most likely what caused such an impact considering its modest magnitude.
Iran is crossed by several fault lines and is prone to frequent earthquakes.
Moderate quakes can sometimes inflict considerable damage in some regions of the country because of the poor construction.