State television interviewed a Red Crescent official who said there had been “a great deal of material damage” near the epicenter, which was about 22 miles southeast of Abdanan, Iran.
The relatively shallow quake occurred at only about 6 miles beneath the surface at 4:30 a.m. local time, according to the U.S. Geological Survey.
Most of the damage occurred in the village of Mour-Mouri, with eight nearby communities also sustaining some structural damage, the official IRNA news agency reported.
Iran experiences frequent and strong earthquakes, many of which are deadly.
A massive quake in December 2003 killed 26,000 people as it devastated the ancient mud-built citidel of Bam.
Last year, a 7.8 magnitude temblor struck southeastern Iran and neighboring parts of Pakistan, killing 40 people.