The first rattled an area north of the town of Dezhgan shortly after 2:00 am (2130 GMT), before a 5.7 tremor hit two hours later followed quickly by the second 6.0 magnitude quake, said the USGS.
Hormozgan governor Mehdi Dousti said five people were killed, as cited by the official news agency IRNA.
Dousti told state television that the village of Sayeh Khosh, close to the epicentre, had been completely destroyed. “84 people were injured out of whom only 15 are still in hospital for treatment,” national emergency services spokesman Mojtaba Khaledi told state television The state broadcaster showed video footage of residential buildings reduced to rubble in Sayeh Khosh, which was plunged into darkness in a power outage.
Ambulances and other vehicles tried to navigate roads covered in debris as shocked residents took to the streets or tried to recover items from their flattened homes. People also spent the night outdoors in the provincial capital Bandar Abbas, with a population of more than 500,000, located about 100 kilometres (60 miles) east of the epicentre, where long queues formed in front of gas stations, state media reported.
Interior Minister Ahmad Vahidi visited Hormozgan province and told state television that restoring water and electricity are among the government’s top priorities. Iran’s Red Crescent Society said in the morning that search and rescue operations were nearly over.
“We are concentrating on housing the victims of the earthquake,” Dousti told television. Iran sits astride the boundaries of several major tectonic plates and experiences frequent seismic activity. The Islamic republic’s deadliest quake was a 7.4-magnitude tremor in 1990 that killed 40,000 people in the north, injured 300,000 and left half a million homeless. In 2003, a 6.6-magnitude quake in southeastern Iran levelled the ancient mud-brick city of Bam and killed at least 31,000 people.