A 4.0 magnitude earthquake occurred at 7:36 on Tuesday, 231 kilometers southeast of Athens.
According to the Geodynamic Institute of the National Observatory of Athens, the epicenter of the earthquake is located in the sea area 15 kilometers south southwest of Arkesini, Amorgos.
Another five earthquakes of magnitude 4 to 5 on the Richter scale were recorded in the sea area south of Amorgos.
At least five more earthquakes were recorded during the night in the sea area south of Amorgos, the strongest of which was 5 on the Richter scale, according to data released by the Geodynamic Institute of the National Observatory of Athens.