An earthquake measuring 6.2 on the Richter scale jolted Norwegian Sea on Thursday, the US Geological Survey (USGS) reported.
The temblor, which occurred at 10.47pm GMT, had a depth of 8.8km. Its epicentre was 601km northwest of Tromso, Norway and 1,472km northeast of Reykjavik, the capital city of Iceland, Xinhua quoted the USGS report as stating on its website.
An initial report based on the preliminary data said that the quake, of 6.5 magnitude, hit the adjacent Greenland Sea further north.
No tsunami warning was issued immediately after the quake.
The Norwegian Sea is a marginal sea in the North Atlantic Ocean, northwest of Norway.