Oslo: An earthquake with a preliminary magnitude of 6.6 on Thursday struck off Jan Mayen island in Arctic waters between Greenland and Norway, geological monitoringservices said. No damage or injuries were reported.

The European-Mediterranean Seismological Centre and the US Geological Survey said the quake struck at 1343 GMT (9:43 a.m. EDT), followed by a 5.2-magnitude temblor eight minutes later.

The USGC said the stronger quake hit at a depth of 8.6 kilometres, 93 kilometres northwest of Jan Mayen, a Norwegian island with a research station but no permanent population.

The quake could be felt on the island, but didn't cause any damage or injuries, said Erik Persheim, an electronics engineer at the research station.

"We watched the mountain as the loose stones and shale came sliding down," Persheim told The Associated Press. "It didn't seem very big and I don't think much of anything broke, but we'll have to have a thorough inspection."

(Agencies)

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