Update: Magnitude downgrade to 5.1 from 5.2 as per USGS reports.
A preliminary 5.1 magnitude earthquake struck near Néa Stíra, Greece, on September 8, 2025, at a depth of 10 km, according to the U.S. Geological Survey (USGS).
The tremor was strongly felt in Athens, located southwest of the epicenter, as residents reported moderate to strong shaking across several regions of Greece.
Seismic Details of the Athens Earthquake
Earlier preliminary readings placed the magnitude at 5.5 with a shallow depth of 3.3 miles (5.3 km) in the Aegean Sea. The updated data from USGS confirms the quake struck 12 km north-northwest of Néa Stíra at 10 km depth.
No Immediate Reports of Damage
Authorities confirmed that there have been no immediate reports of injuries or significant damage. Emergency services remain on alert and are closely monitoring the situation in case of aftershocks.
Residents in Athens and surrounding areas shared experiences of furniture shaking and buildings swaying, but officials stressed that no major impact has been recorded so far.
Emergency Services Monitoring Situation
Emergency response teams across Greece have been placed on standby. While seismic activity continues in the region, officials are urging residents to remain cautious but not alarmed.
The Athens Earthquake comes as Greece, situated in a seismically active zone, continues to experience frequent tremors due to its geographical location on the Hellenic Arc.
