Moderate mag. 4.1 earthquake - 273 km southwest of Athens, Attica, Greece, on Thursday, 17 September 2020 at 23:32 (GMT) -

Moderate mag. 4.1 earthquake - 273 km southwest of Athens, Attica, Greece, on Thursday, 17 September 2020 at 23:32 (GMT)

Moderate magnitude 4.1 earthquake at 9 km depth

17 Sep 23:36 UTC: First to report: EMSC after 3 minutes.
17 Sep 23:46: Hypocenter depth recalculated from 10.0 to 40.0 km (from 6.2 to 25 mi). Epicenter location corrected by 6.3 km (3.9 mi) towards SW.
17 Sep 23:46: Now using data updates from NOA
Date & time: 17 Sep 2020 23:32:54 UTC -
Magnitude: 4.1
Depth: 9.0 km
Epicenter latitude / longitude: 35.85°N / 22.18°E (Eastern Mediterranean, Greece)
Nearest volcano: Methana (219 km / 136 mi)
Nearby towns and cities:
69 km (43 mi) SSW of Marmari (pop: 11) --> See nearby quakes!
119 km (74 mi) SSW of Skala (pop: 2,820) --> See nearby quakes!
119 km (74 mi) SSW of Krokeés (pop: 1,330) --> See nearby quakes!
122 km (76 mi) SSW of Molaoi (pop: 3,020) --> See nearby quakes!
126 km (78 mi) SSE of Pylos (pop: 2,350) --> See nearby quakes!
132 km (82 mi) S of Kalamata (pop: 54,100) --> See nearby quakes!
138 km (86 mi) S of Sparta (Sparti) (pop: 16,200) --> See nearby quakes!
139 km (86 mi) WNW of Kissamos (pop: 4,240) --> See nearby quakes!
144 km (89 mi) SSE of Gargalianoi (pop: 6,280) --> See nearby quakes!
274 km (170 mi) SSW of Athens (pop: 664,000) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 25.7°C (78 F), humidity: 73%, wind: 9 km/h (5 kts) from N
Primary data source: NOA (National Observatory of Athens)
Estimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) More info
Show interactive Map
[smaller] [bigger]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
4.19 kmCentral Mediterranean Sea, GreeceNOA
4.410 kmCentral Mediterranean Sea, GreeceGFZ
4.340 km132 Km S of Kalamata, GreeceEMSC
4.128 km125 Km S of Kalamata, GreeceKOERI-RETMC
4.310 km81 Km WSW of Kýthira, GreeceUSGS
4.310 kmKainouryia Khora / Mittelmeer, GreeceZAMG

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
991.9 km E of epicenter [Map] / Very weak shaking (MMI II)
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version
Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Additional seismic data sources
  • Improved content in English
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.