Mag. 4.8 earthquake - Phocis, Central Greece, 16 km east of Nafpaktos, Aitoloakarnania, West Greece, on Wednesday, 23 Dec 2020 4:58 pm (GMT +2) -

Mag. 4.8 earthquake - Phocis, Central Greece, 16 km east of Nafpaktos, Aitoloakarnania, West Greece, on Wednesday, 23 Dec 2020 4:58 pm (GMT +2)

Light magnitude 4.8 earthquake at 10 km depth

23 Dec 15:02 UTC: First to report: GFZ after 4 minutes.
23 Dec 18:10: Magnitude recalculated from 5.3 to 4.8. Epicenter location corrected by 5.2 km (3.2 mi) towards SSW.
Update Wed, 23 Dec 2020, 15:06
Significant earthquake of magnitude 5.3 just reported 19 km northeast of Nafpaktos, Greece
5.3 quake 23 Dec 4:58 pm (GMT +2)
5.3 quake 23 Dec 4:58 pm (GMT +2)
A magnitude 5.3 earthquake near Nafpaktos, Aitoloakarnania, West Greece, Greece, was reported only 8 minutes ago by the German Research Centre for Geosciences (GFZ), considered one of the key international agencies that monitor seismic activity worldwide. The earthquake occurred at a shallow depth of 10 km beneath the epicenter in the afternoon on Wednesday 23 December 2020 at 4:58 pm local time. 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 4.8 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 Nafpaktos (pop. 13,400) located 19 km from the epicenter, Aigio (pop. 20,400) 22 km away, Rio (pop. 4,700) 27 km away, Galaxidi (pop. 3,000) 30 km away, Amfissa (pop. 6,900) 31 km away, Itea (pop. 4,800) 34 km away, and Patrai (pop. 168,000) 34 km away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Lamia (pop. 52,000) located 62 km from the epicenter.
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: 23 Dec 2020 14:58:26 UTC -
Local time at epicenter: Wednesday, 23 Dec 2020 4:58 pm (GMT +2)
Magnitude: 4.8
Depth: 10.0 km
Epicenter latitude / longitude: 38.4°N / 22.01°E (Phocis, Central Greece, Greece)
Nearest volcano: Sousaki (108 km / 67 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 (18 mi) NE of Patras (West Greece) (pop: 168,000) --> See nearby quakes!
32 km (20 mi) W of Galaxidi (pop: 3,030) --> See nearby quakes!
35 km (22 mi) WSW of Amfissa (pop: 6,850) --> 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!
76 km (47 mi) W of Livadeia (Levádhia) (pop: 21,500) --> See nearby quakes!
157 km (98 mi) WNW of Athens (Attica) (pop: 664,000) --> See nearby quakes!
Weather at epicenter at time of quake:
Few Clouds 7.5°C (45 F), humidity: 85%, wind: 2 m/s (3 kts) from W
Primary data source: GFZ (German Research Centre for Geosciences)
Estimated released energy: 1 x 1012 joules (278 megawatt hours, equivalent to 239 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!
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.
MagnitudeDepthLocationSource
M 4.810 km- 12 km NNE of Kamárai, GreeceGFZ
M 4.62 kmGREECEEMSC
M 4.513 kmNavpaktos / Griechenland, GreeceZAMG
M 4.58 kmGreeceNOA
M 4.89.6 km12 Km NNE of Kamárai, GreeceUSGS
M 4.89.6 km12 Km NNE of Kamárai, GreeceUSGS
M 4.45 kmGreeceNIEP

User reports for this quake (8)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Contribute:
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Trizonia / Weak shaking (MMI III) / 2-5 s : We were on a boat in the south bay of trizonia island. We felt vibrations in the boat and the doors rattled a bit. There were no other signs. | 4 users found this interesting.
  • Maybe the engine
Trizonia / Weak shaking (MMI III) / 2-5 s : We were on a boat in the south bay of trizonia island. We felt vibrations in the boat and the doors rattled a bit. There were no other signs.
439.9 km SE of epicenter [Map] / not felt (reported through our app)
610.1 km W of epicenter [Map] / not felt (reported through our app)
156.1 km ESE of epicenter [Map] / not felt (reported through our app)
1333.9 km SE of epicenter [Map] / not felt (reported through our app)
1245.6 km SE of epicenter [Map] / not felt (reported through our app)
1260 km NNW of epicenter [Map] / not felt (reported through our app)
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Earlier earthquakes in the same area since 1900

Mag. 4.8 earthquake - Phocis, Central Greece, 16 km east of Nafpaktos, Aitoloakarnania, West Greece, on Wednesday, 23 Dec 2020 4:58 pm (GMT +2)
    Hint: Click on Date/Time to show latest first
  • Date / time UTC
    | Mag |
    Depth
    |
    Age
    |
    Distance
    | Details
  • 08 Nov 1905 22:06
    | 7.4 |
    15km / 9.3mi
    |
    115 years ago
    |
    188km / 117mi
    | Aegean Sea (Greece)
  • 06 Oct 1947 19:55
    | 7.3 |
    15km / 9.3mi
    |
    73 years ago
    |
    186km / 116mi
    | Southern Greece
  • 17 Jan 1983 12:41
    | 7.0 |
    14.3km / 8.9mi
    |
    38 years ago
    |
    161km / 100mi
    | Greece
  • 31 Mar 1965 09:47
    | 6.8 |
    75km / 47mi
    |
    56 years ago
    |
    35km / 22mi
    | Greece
  • 12 Aug 1953 09:23
    | 6.8 |
    10km / 6.2mi
    |
    67 years ago
    |
    96km / 60mi
    | Greece
  • 24 Feb 1981 20:53
    | 6.7 |
    33km / 21mi
    |
    40 years ago
    |
    83km / 52mi
    | Greece
  • 15 Nov 1959 17:08
    | 6.7 |
    15km / 9.3mi
    |
    61 years ago
    |
    141km / 87mi
    | Ionian Sea (Greece)
  • 30 Apr 1954 13:02
    | 6.7 |
    10km / 6.2mi
    |
    67 years ago
    |
    93km / 58mi
    | Greece
  • 15 Jun 1995 00:15
    | 6.5 |
    14.2km / 8.8mi
    |
    26 years ago
    |
    24km / 15mi
    | Greece
  • 08 Mar 1957 12:14
    | 6.5 |
    10km / 6.2mi
    |
    64 years ago
    |
    119km / 74mi
    | Greece
    • Show all

Map of earlier quakes

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