The border between Iran and Iraq was rattled by three magnitude-5 earthquakes, striking Baghdad on Thursday, AP said, citing the US Geological Survey.
Earlier on Thursday, the USGS said a magnitude 4.9 quake hit Iran's southern province of Kerman before dawn, while another 4.6 magnitude temblor struck on Wednesday night in Kermanshah province.
All the earthquakes struck at a depth of 10 kilometers (6 miles), according to the USGS.
According to Iran's official news agency IRNA, the quake rocked the village of Hojdaknear the city of Ravar.
The Iraqi state-run Iraqiya channel confirmed the earthquakes that were felt in the provinces of Baghdad, Diyala, Wasit and Salahudin, and that no casualties were reported. Four people suffered minor injuries in Iran, state television reported.
Many buildings collapsed or sustained major damage in November's quake.
Late Thursday afternoon, another 4.8 magnitude natural disaster struck in Kerman, according to the USGS.
Iran is one of the most seismically active countries in the world, being crossed by several major fault lines that cover at least 90% of the country.
In 2003, a magnitude 6.6 natural disaster in the province of Kerman flattened the historic city of Bam, killing more than 26,000 people.