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
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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.
MagnitudeDepthLocationSource
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)
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