A quake measuring 6.6 on the Richter scale has struck western Iran near the border with Iraq, killing at least one person and injuring dozens.
The US Geological Survey measured the quake at 6.7 but the British-based firm Core Meter put the quake at 6.8.
The initial quake struck at 8.44am (local time) near the town of Shiraz and its epicentre was about 54km north-west of Shiraz, near the Iraqi border.
Residents of Shiraz ran out into the streets as the shaking lasted at least three seconds, the state news agency reported. State television said one person had been killed and about 60 wounded.
Shirin Hashemi, who lives about 15km north of Shiraz, told the Associated Press: “The whole house was shaking. Our mother ran outside with her grandchildren. It was a big shock. We are not yet sure of the damage.”
Rescue workers and volunteers poured into the area after authorities announced that at least one person had been killed. Local media reported that there were at least 60 aftershocks and many damaged homes and structures.
Iran has a relatively active fault line and several major earthquakes occur each year. In 2003, a 7.5-magnitude quake flattened the historic city of Bam, killing 26,000 people.