Moderate mag. 3.9 earthquake - Ionian Sea, 5.6 km west of Glyfada, Phocis, Central Greece, on Monday, 28 Dec 2020 1:11 pm (GMT +2) -

Moderate mag. 3.9 earthquake - Ionian Sea, 5.6 km west of Glyfada, Phocis, Central Greece, on Monday, 28 Dec 2020 1:11 pm (GMT +2)

Moderate magnitude 3.9 earthquake at 7 km depth

28 Dec 11:15 UTC: First to report: EMSC after 4 minutes.
28 Dec 11:43: Hypocenter depth recalculated from 2.0 to 7.0 km (from 1.2 to 4.3 mi). Epicenter location corrected by 2.4 km (1.5 mi) towards NNE.
28 Dec 11:44: Hypocenter depth recalculated from 7.0 to 2.0 km (from 4.3 to 1.2 mi). Epicenter location corrected by 1.4 km (0.9 mi) towards SW.
28 Dec 11:47: Now using data updates from NOA
Date & time: 28 Dec 2020 11:11:45 UTC -
Local time at epicenter: Monday, 28 Dec 2020 1:11 pm (GMT +2)
Magnitude: 3.9
Depth: 7.0 km
Epicenter latitude / longitude: 38.3904°N / 22.0143°E (Ionian Sea, Central Greece, Greece)
Nearest volcano: Sousaki (107 km / 66 mi)
Nearby towns and cities:
6 km (3 mi) W of Glyfada (pop: 477) --> See nearby quakes!
16 km (10 mi) E of Nafpaktos (West Greece) (pop: 13,400) --> See nearby quakes!
17 km (10 mi) NNW of Aigio (West Greece) (pop: 20,400) --> See nearby quakes!
29 km (18 mi) NE of Patras (West Greece) (pop: 168,000) --> See nearby quakes!
35 km (22 mi) WSW of Amfissa (pop: 6,850) --> See nearby quakes!
36 km (22 mi) W of Itea (pop: 4,780) --> See nearby quakes!
40 km (25 mi) NE of Vrachnaiika (West Greece) (pop: 2,570) --> See nearby quakes!
49 km (30 mi) NE of Kato Achaḯa (Dimi, West Greece) (pop: 5,750) --> See nearby quakes!
67 km (42 mi) SSW of Lamia (pop: 52,000) --> See nearby quakes!
156 km (97 mi) WNW of Athens (Attica) (pop: 664,000) --> See nearby quakes!
126 km (78 mi) E of Kefalonia Island (pop: 34,500) --> See nearby quakes!
117 km (73 mi) E of Ithaca Island (pop: 3,210) --> See nearby quakes!
140 km (87 mi) NW of Nisi Agkistri Island (pop: 1,140) --> See nearby quakes!
Weather at epicenter at time of quake:
Scattered Clouds 10.7°C (51 F), humidity: 67%, wind: 6 m/s (11 kts) from S
Primary data source: NOA (National Observatory of Athens)
Estimated released energy: 4.5 x 1010 joules (12.4 megawatt hours, equivalent to 10.7 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
M 3.97 km- 17 km NE of Náfpaktos, GreeceNOA
M 4.22 kmGREECEEMSC
M 4.210 km17 Km NE of Náfpaktos, GreeceUSGS
M 3.97 kmNavpaktos / Griechenland, GreeceZAMG
M 4.010 kmGreeceNIEP

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
48.5 km NE of epicenter [Map] / Very weak shaking (MMI II) / single lateral shake / 1-2 s
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