Moderate mag. 4.2 earthquake - 5.7 km west of Glyfada, Phocis, Central Greece, on Wednesday, 30 Dec 2020 2:39 am (GMT +2) -

Moderate mag. 4.2 earthquake - 5.7 km west of Glyfada, Phocis, Central Greece, on Wednesday, 30 Dec 2020 2:39 am (GMT +2)

Moderate magnitude 4.2 earthquake at 8 km depth

30 Dec 00:42 UTC: First to report: GFZ after 3 minutes.
30 Dec 00:45: Magnitude recalculated from 4.5 to 4.4. Epicenter location corrected by 1.7 km (1.1 mi) towards W.
30 Dec 00:56: Now using data updates from NOA
30 Dec 01:41: Hypocenter depth recalculated from 10.0 to 8.0 km (from 6.2 to 5 mi). Epicenter location corrected by 1.6 km (1 mi) towards NNE.
Update Wed, 30 Dec 2020, 00:48
Magnitude 4.4 earthquake strikes near Glyfada, Phocis, Central Greece, Greece
4.4 quake 30 Dec 2:39 am (GMT +2)
4.4 quake 30 Dec 2:39 am (GMT +2)
A shallow magnitude 4.4 earthquake was reported early morning near Glyfada, Phocis, Central Greece, Greece.
According to the German Research Centre for Geosciences (GFZ), the quake hit on Wednesday 30 December 2020 at 2:39 am 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.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 4.7 earthquake.
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 Glyfada (pop. 480) located 5 km from the epicenter, Kamarai (pop. 1,200) 10 km away, Longos (pop. 660) 11 km away, Kastraki (pop. 910) 11 km away, and Selianitika (pop. 900) 12 km away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Aigio (pop. 20,400) located 17 km from the epicenter, Nafpaktos (pop. 13,400) 17 km away, Rio (pop. 4,700) 23 km away, and Patrai (pop. 168,000) 30 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you’re in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
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Earthquake data:

Date & time: 30 Dec 2020 00:39:20 UTC -
Local time at epicenter: Wednesday, 30 Dec 2020 2:39 am (GMT +2)
Magnitude: 4.2
Depth: 8.0 km
Epicenter latitude / longitude: 38.3981°N / 22.0157°E (Phocis, Central Greece, Greece)
Nearest volcano: Sousaki (107 km / 66 mi)
Nearby towns and cities:
6 km (4 mi) WNW of Glyfada (pop: 477) --> See nearby quakes!
16 km (10 mi) E of Nafpaktos (West Greece) (pop: 13,400) --> See nearby quakes!
18 km (11 mi) NNW of Aigio (West Greece) (pop: 20,400) --> See nearby quakes!
30 km (19 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!
51 km (32 mi) E of Messolonghi (Μεσολόγγι, West Greece) (pop: 12,800) --> See nearby quakes!
58 km (36 mi) ESE of Agrinio (West Greece) (pop: 46,900) --> See nearby quakes!
67 km (41 mi) SSW of Lamia (pop: 52,000) --> See nearby quakes!
157 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!
Weather at epicenter at time of quake:
Scattered Clouds 10.6°C (51 F), humidity: 79%, wind: 1 m/s (3 kts) from SW
Primary data source: NOA (National Observatory of Athens)
Estimated released energy: 1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) More info
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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!
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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 4.28 kmGreeceNOA
M 4.62 kmGREECEEMSC
M 4.410 kmGreeceGFZ
M 4.610 km8 Km NNE of Kamárai, GreeceUSGS
M 4.02 kmGreeceNIEP

User reports for this quake (8)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Aigio (18.3 km SSE of epicenter) [Map] / Strong shaking (MMI VI) / 2-5 s (reported through our app)
Rogaška Slatina (1016 km NNW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging
34.9 km SW of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
Temeni Aigio (20.1 km SSE of epicenter) [Map] / Very strong shaking (MMI VII) / 10-15 s
30356 marathias / Moderate shaking (MMI V)
39039 vintl / Weak shaking (MMI III) / vibration and rolling / 2-5 s
amfissa / Moderate shaking (MMI V) / horizontal (sideways) swinging / 2-5 s
Patras / Light shaking (MMI IV)
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Earlier earthquakes in the same area since 1900


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