The quakes, including two of magnitude 6.0, struck west of the major port city of Bandar Abbas in Hormozgan province, the US Geological Survey said.
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 said most of the damage occurred in the village of Sayeh Khosh, close to the epicenter.
State television said 49 people were injured and showed video footage of residential buildings reduced to rubble in Sayeh Khosh, which was plunged into darkness in a power outage. READ MORE
