A magnitude 7.9 earthquake has struck off the east coast of Papua New Guinea.

The quake was 61 miles deep with its epicentre 29 miles to the east of Taron on Saturday, the US Geological Survey (USGS) said.

Strong aftershocks hit the area of the original quake within the space of an hour, with the USGS reporting 5.5 and 6.3 magnitude quakes.

There were no reports of casualties but there were items knocked off shelves and a blackout in the town of Kokopo in the north east of the country.

The Pacific Tsunami Warning Centre had warned of hazardous tsunami waves but it later said the threat was over.


People living in Bougainville fled to higher ground. Local resident Christabel Biasu said: "The town residents have vacated the whole place; those in the villages live higher up, so they're OK, it's just those near the coast."

A nurse at Buka General Hospital in Bougainville said the quake was so strong it felt like the building she was sleeping in would topple.

She said patients were being moved a few kilometres to higher ground.

Tsunami warnings for Indonesia, the Solomon Islands, Pohnpei, Chuuk, Nauru, Kosrae and Vanuatu were also cancelled.

Papua New Guinea sits on the Ring of Fire, the arc of seismic faults around the Pacific Ocean where earthquakes are common.

The neighbouring Solomon Islands were hit by a devastating tsunami in 2013 after an 8.0-magnitude earthquake struck the region.

At least 10 people died and hundreds of homes were destroyed leaving thousands of people homeless.