A magnitude 3.5 earthquake struck near Prokopi in Evia on Wednesday, 24 June 2026, at 01:19 local time, according to the Geodynamic Institute’s automatic solution. The epicenter was located 8 kilometers southwest of Prokopi, at a focal depth of 5.0 kilometers.
The tremor was widely felt across the region — including in parts of Attica — though no damage or injuries have been reported.
Earlier seismic activity has also been recorded in the area, with the strongest prior event measuring magnitude 4.1.