There were no immediate reports of casualties or damage caused by the quake.
According to the USGS, the quake occurred at a depth of 10 kilometres.
No tsunami warning has been issued.
Earthquakes with magnitudes above 6.0 Richter scale are considered to be strong earthquakes, which can deal damage to a moderate number of structures in populated areas. It is usually felt in up to hundreds of kilometres from the epicentre.