- The center says the epicenter was near the city of Firouzabad, which is home to 117,000 people.
- The town is about 620 miles (1,000 kilometers) south of the capital, Tehran.
The US Geological Survey put the magnitude at 5.6.
Quakes measuring more than a magnitude of 5 can cause considerable damage.
Iran is located on seismic fault lines and on average experiences at least one small earthquake a day.
A magnitude-6.6 quake flattened the historic southeastern city of Bam in 2003, killing 26,000 people.

