According to the US Geological Survey, the epicenter was recorded in the Ionian Sea, roughly 50 miles from the Greek city of Pyrgos and 175 miles from capital city of Athens. The earthquake was detected at 1:54 a.m. local time.
The European-Mediterranean Seismological Center (EMSC) has reported a change in sea level, confirming the possibility of a tsunami.
Netizens have begun to share footage documenting the strong quake.
— Aliz Koletas (@AlizKoletas) October 25, 2018
The Italian National Institute of Geophysics and Volcanology on Friday warned about the possibility of a tsunami in the Mediterranean following a powerful earthquake that has struck off Greece.
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"The orange alert level has been introduced along the cost of the Italian regions of Calabria, Basilicata, Apulia and Sicily. The rising of sea level of up to 1 meter [3.3 feet] is possible. We recommend avoiding approaching the seacoast and beaches," the institute said in an emergency statement.
According to the European Mediterranean Seismological Centre, a tsunami of around 20 centimeters (0.6 feet) in height was registered off the Greek coast in the early hours of Friday.
Apart from Greece, tremors had been reportedly felt in Albania, Bosnia, Bulgaria, Italy, Libya, Macedonia, Malta, Turkey and even the Dominican Republic.