Magnitude 4.2 earthquake south of Sithonia at 03:01 on Saturday
The Institute of Geodynamics records the 31 October earthquake offshore, at a depth of approximately 14.1 kilometres.
A magnitude 4.2 earthquake occurred offshore south of Sithonia, Halkidiki, in the early hours of Saturday 31 October 2026. The National Observatory of Athens’ Institute of Geodynamics places the earthquake at 03:01:58 Greek time.
In the solution reviewed by a seismologist, the epicentre is recorded at 39.6817° north and 24.1818° east. The focal depth is estimated at approximately 14.1 kilometres.
The magnitude is on the local ML scale. These data describe the earthquake’s geophysical parameters; this particular record does not include an assessment of any damage or injuries.
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