One house collapsed as a result of the quake, and the shaking went on for several seconds.
Many buildings cracked in Zagreb and walls and rooftops were damaged. Downtown streets were littered with debris. Concrete slabs fell on cars and chimneys landed in front of entrances.
The US Geological Survey said the quake hit at 1309 GMT four km north of Magna, a township in Salt Lake County, at a depth of 10 km.
Earthquake centered on the Iranian city of Khoy also affected villages in eastern Turkish province of Van where 50 people were injured. A second earthquake hit the same area in less than 10 hours.
In September last year, Istanbul was shaken by a magnitude 5.8 earthquake, triggering widespread panic. This is what experts think the future might hold for the city.
29 killed, more than 1,200 injured in powerful quake Friday in Elazig province in eastern Turkey.
State news agency Anadolu said among those found alive was a pregnant woman who was rescued 12 hours after a powerful quake struck Turkey's eastern Elazig province.
Puerto Rico Governor, Wanda Vazquez fired the director of the island's emergency management agency after a video of the warehouse filled with disaster supplies appeared on Facebook.
According to the European-Mediterranean Seismological Centre, the quake struck 518 kilometres west of Vancouver.
Police said a rescue operation had been launched at a heavily damaged market building near the 6.8 magnitude quake's epicentre, which is about 90 kilometres from the major city of Davao.
At least 47 victims were rescued alive, officials said, but the number of people who may still be buried amid rubble remains unknown.
Emergency workers try to save survivors from the ruins of an earthquake in Albania, as aftershocks hampered search efforts.
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