The US Geological Survey put the quake at 7.3 magnitude, which placed the epicentre southwest of the city of Halabja along the Iraq-Iran border.
According to the seismologic centre of the University of Tehran, the quake was magnitude-7.3 and happened in Ezgeleh village near the Iranian city of Kermanshah.
Photos and videos of extensive damage in both Iran and Iraq poured in on social media shortly after the natural disaster. Eight villages were damaged.
Tremors could be felt as far away as in the UAE after a 7.3 magnitude natural disaster struck Northern Iraq. Semi-official Fars news agency and state news agency IRNA said at least six people were killed and many others injured in the border town of Qasr-e Shirin.
The quake-hit area is also around 200km northeast of the Iraqi capital of Baghdad.
Witnesses said buildings being evacuated as they shook violently.
No casualties have yet to be reported.
"I felt like I was on a boat, I thought it was vertigo".
A collapsed building is seen on top of a crushed auto in a photo taken in Kermanshah Province in Iran. The epicenter was also 64 miles southeast of the city of As-Sulaymaniyah, near the Iranian border.
Extensive damage is seen in photos taken in the town of Darbandikhan in Iraq.
At least four people died and dozens were wounded in Iraq, according to the Kurdistan Regional Government's Health Minister Rekawt Hama Rasheed.
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