A magnitude 6.8 earthquake has struck in the Ionian Sea off the coast of Greece, the United States Geological Survey (USGS) reports.
The quake hit at a shallow depth of 16.6km (10 miles) below the seafloor. The closest habitation to the epicentre is Lithakia, a coastal village of some 1,300.
The USGS lists perceived shaking from a quake such as this as “very strong” and potential damage as “moderate”.
However, there were no initial reports of damage or casualties.
The epicentre of the quake initially reported as a magnitude 7.0, was in the Ionian Sea, some 83 miles (133.5 km) southwest of Patras in the Peloponnese.
A fire brigade official in Athens said there were no early reports of damage or casualties.
The quake was fairly shallow, only 10.3 miles (16.5 km) below the seabed, which would have amplified the shaking.
It struck at 1:54 a.m. (2254 GMT Thursday) and was followed about half an hour later by a 5.2 aftershock.
Greece straddles two tectonic plates and often gets earthquakes.
SOURCE: Agencies reports