Moderate mag. 4.7 earthquake - 3 km northwest of Glyfada, Phocis, Central Greece, on Wednesday, Jan 13, 2021 12:09 am (GMT +2) -

Moderate mag. 4.7 earthquake - 3 km northwest of Glyfada, Phocis, Central Greece, on Wednesday, Jan 13, 2021 12:09 am (GMT +2)

Moderate magnitude 4.7 earthquake at 4 km depth

12 Jan 22:13 UTC: First to report: NOA after 3 minutes.
12 Jan 22:15: Magnitude recalculated from 4.6 to 4.8. Epicenter location corrected by 1.9 km (1.2 mi) towards S.
... [show all] ...
12 Jan 22:25: Magnitude recalculated from 4.8 to 4.7. Hypocenter depth recalculated from 10.0 to 4.3 km (from 6.2 to 2.7 mi). Epicenter location corrected by 17 km (10.7 mi) towards SSE.
Update Tue, 12 Jan 2021, 22:18
Light 4.8 quake hits near Nafpaktos, Aitoloakarnania, West Greece, Greece
4.8 quake 13 Jan 12:09 am (GMT +2)
4.8 quake 13 Jan 12:09 am (GMT +2)
A magnitude 4.8 earthquake near Nafpaktos, Aitoloakarnania, West Greece, Greece, was reported only 8 minutes ago by the National Observatory of Athens (NOA), considered the main national agency that monitors seismic activity in Greece. The earthquake occurred at a shallow depth of 10 km beneath the epicenter after midnight on Wednesday 13 January 2021 at 12:09 am 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.
Our monitoring service identified a second report from the German Research Centre for Geosciences (GFZ) which listed the quake at magnitude 4.9.
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 Kastraki (pop. 910) located 15 km from the epicenter, Glyfada (pop. 480) 20 km away, Lidoriki (pop. 840) 20 km away, Nafpaktos (pop. 13,400) 21 km away, Kamarai (pop. 1,200) 27 km away, and Thérmo (pop. 2,000) 27 km away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Antirrio (pop. 1000) located 29 km from the epicenter, Aigio (pop. 20,400) 34 km away, and Patrai (pop. 168,000) 39 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: Jan 12, 2021 22:09:56 UTC -
Local time at epicenter: Wednesday, Jan 13, 2021 12:09 am (GMT +2)
Magnitude: 4.7
Depth: 4.3 km
Epicenter latitude / longitude: 38.3949°N / 22.0482°E (Phocis, Central Greece, Greece)
Antipode: 38.395°S / 157.952°W
Nearest volcano: Sousaki (118 km / 73 mi)
Nearby towns and cities:
3 km (2 mi) WNW of Glyfada (pop: 477) --> See nearby quakes!
17 km (10 mi) N of Aegion (West Greece) (pop: 20,400) --> See nearby quakes!
19 km (12 mi) E of Naupacte (Nafpaktos, West Greece) (pop: 13,400) --> See nearby quakes!
32 km (20 mi) ENE of Patras (West Greece) (pop: 168,000) --> See nearby quakes!
32 km (20 mi) WSW of Amfissa (pop: 6,850) --> See nearby quakes!
61 km (38 mi) ESE of Agrinio (West Greece) (pop: 46,900) --> See nearby quakes!
65 km (41 mi) SSW of Lamia (pop: 52,000) --> See nearby quakes!
72 km (45 mi) W of Livadia (Levádhia) (pop: 21,500) --> See nearby quakes!
94 km (58 mi) WNW of Corinto (Peloponnese) (pop: 30,200) --> See nearby quakes!
154 km (96 mi) WNW of Athens (Attica) (pop: 664,000) --> See nearby quakes!
170 km (106 mi) W of Eubee Island (pop: 198,100) --> See nearby quakes!
103 km (64 mi) ESE of Kalamos Island (pop: 496) --> See nearby quakes!
Weather at epicenter at time of quake:
Scattered Clouds 12.2°C (54 F), humidity: 71%, wind: 0 m/s (1 kts) from WSW
Primary data source: NOA (National Observatory of Athens)
Estimated released energy: 7.1 x 1011 joules (197 megawatt hours, equivalent to 169 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.
Mag.DepthLocationSource
4.74.3 km- 15 km NNE of Kamárai, GreeceNOA
5.010 kmGreeceGFZ
5.020 kmGreeceINGV
5.110 kmGreeceGeoAu
5.14 kmGREECEEMSC
5.210 km15 Km NNE of Kamárai, GreeceUSGS
4.910 km900 Km NW of Marsa Matruh, GreeceENSN
5.144 kmGreeceBMKG
5.210 kmTolofon / Griechenland, GreeceZAMG
4.99 kmGreeceNIEP

User reports for this quake (30)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Galaxidi (29.5 km E of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s : Felt the quake for around 2-3 seconds | 2 users found this interesting.  
Athens Kallithea (161 km ESE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging : I felt it sitting on my chair and saw my lamp shade moving | 2 users found this interesting.  
Patras, Vrahneika / Moderate shaking (MMI V) / horizontal (sideways) swinging / 15-20 s : We've been having earthquakes since the end of 2020 that are more or less 4 magnitude. This one has been the strongest so far these days. | One user found this interesting.  
Katochi / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : I feel it in katochi it happen three times | 2 users found this interesting.  
Nafpaktos (18.1 km W of epicenter) [Map] / Strong shaking (MMI VI) : Μας ξύπνησε... αρκετά δυνατός. | One user found this interesting. (reported through our app)  
Marathias Fokida (2.6 km W of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s
Zacharo, Ilia Prefecture, West Greece (107.7 km SSW of epicenter) [Map] / Weak shaking (MMI III)
Kallithea, Nomarchía Athínas, Attica (152.7 km ESE of epicenter) [Map] / Very weak shaking (MMI II) (reported through our app)
Pýrgos, Ilia Prefecture, West Greece (93 km SW of epicenter) [Map] / Light shaking (MMI IV) / 5-10 s
Témeni, Achaea, West Greece (20 km SSE of epicenter) [Map] / Moderate shaking (MMI V)
Vrachnaiika, Achaea, West Greece (41.8 km SW of epicenter) [Map] / Light shaking (MMI IV) / 5-10 s (reported through our app)
Kalamata, Messenia, Peloponnese (151.6 km S of epicenter) [Map] / Very weak shaking (MMI II) (reported through our app)
Aigio (17.1 km SSE of epicenter) [Map] / Moderate shaking (MMI V) / 2-5 s (reported through our app)
Kato Achaḯa, West Greece (53.7 km WSW of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / 1-2 s
Agrinio, Aitoloakarnania, West Greece (60.7 km WNW of epicenter) [Map] / Very strong shaking (MMI VII)
Patras, Achaea, West Greece (30.1 km WSW of epicenter) [Map] / Moderate shaking (MMI V) / both vertical and horizontal swinging (reported through our app)
Patra / Light shaking (MMI IV) / 2-5 s
Patras / Moderate shaking (MMI V) / rattling, vibrating / 10-15 s : Loud noise during the earthquake  
Evinohori / Light shaking (MMI IV) / 10-15 s
lefkada / Light shaking (MMI IV) / 2-5 s
Akrata / Weak shaking (MMI III)
Patras / Moderate shaking (MMI V)
Evinohori / Light shaking (MMI IV)
86V5+FH Paralia Tolofonos, Griechenland / Weak shaking (MMI III) / 1-2 s
Patra / Light shaking (MMI IV) / 2-5 s
Patras / Very strong shaking (MMI VII)
Nafpaktos / Moderate shaking (MMI V)
Nafpaktos / Strong shaking (MMI VI) / horizontal (sideways) swinging / 2-5 s
Patras / Moderate shaking (MMI V) / 15-20 s
Pyrgos / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s
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