A magnitude 4.0 earthquake near Athens, Nomarchía Athínas, Attica, Greece, was reported only 7 minutes ago by the National Observatory of Athens (NOA), considered the main national agency that monitors seismic activity in Greece. The earthquake occurred at a very shallow depth of 5. km beneath the epicenter in the evening on Friday, August 8th, 2025, at 8:56 pm local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.8 earthquake. Other agencies reporting the same quake include The Aristotle University of Thessaloniki Geophysical Lab. (AUTH) at magnitude 3.9, the citizen-seismograph network of RaspberryShake at magnitude 4.0, and The Seismological Laboratory of the University of Athens (UOA) at magnitude 3.9.Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc. In Yimnon (pop. 2,000) located 5 km from the epicenter, the quake should have been felt as light shaking.Weak shaking might have been felt in Chalkida (pop. 59,100) located 29 km from the epicenter.Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Kifissia (pop. 47,300) located 44 km from the epicenter, Acharnes (pop. 99,300) 45 km away, Marousi (pop. 72,300) 47 km away, Nea Ionia (pop. 67,100) 49 km away, Chalandri (pop. 74,200) 50 km away, Agia Paraskevi (pop. 59,700) 50 km away, Athens (pop. 664,000) 56 km away, and Piraeus (pop. 163,700) 63 km away.Earthquake data: Date & time: Aug 8, 2025 08:56 pm (GMT +3) local time (8 Aug 2025 17:56 GMT)Magnitude: 4.0Depth: 5.00 kmEpicenter latitude / longitude: 38.46°N / 23.93°E (Euboea, Central Greece, Greece)Primary data source: NOA