Moderate tremor of magnitude 4.2 just reported 90 km southeast of Athens, Greece
4.2 quake 6 Oct 4:25 pm (GMT +3)

A shallow magnitude 4.2 earthquake was reported in the afternoon near Athens, Nomarchía Athínas, Attica, Greece.
According to the National Observatory of Athens (NOA), the quake hit on Wednesday, October 6th, 2021, at 4:25 pm local time at a shallow depth of 10 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. 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.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Sykamia (pop. 26) located 20 km from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Glyfada (pop. 87,300) located 78 km from the epicenter, Ilioupoli (pop. 78,200) 83 km away, Agios Dimitrios (pop. 71,300) 85 km away, Kallithea (pop. 100,600) 88 km away, Athens (pop. 664,000) 90 km away, Piraeus (pop. 163,700) 91 km away, Nikaia (pop. 89,400) 93 km away, Peristeri (pop. 140,000) 95 km away, and Acharnes (pop. 99,300) 99 km away.


Earthquake data:
Date & time: Oct 6, 2021 4:25 pm (GMT +3) local time (6 Oct 2021 13:25 GMT)
Magnitude: 4.2
Depth: 10.0 km
Epicenterlatitude / longitude: 37.32°N / 24.31°E (Aegean Sea, Greece)
Primary data source: NOA
https://www.volcanodiscovery.com/earthquake/news/143513/Moderate-tremor-of-magnitude-42-just-reported-90-km-southeast-of-Athens-Greece.html