Strong mag. 5.4 earthquake - Ionian Sea, 23 km northeast of Patras, Achaea, Western Greece, on Wednesday, 17 Feb 2021 5:36 am (GMT +2) -

Strong mag. 5.4 earthquake - Ionian Sea, 23 km northeast of Patras, Achaea, Western Greece, on Wednesday, 17 Feb 2021 5:36 am (GMT +2)

Tremblement de terre fort magnitude 5.4 at 10 km depth

17 Feb 03:38 UTC: Premier à signaler: GFZ après 3 minutes.
17 Feb 03:42: Magnitude recalculée de 5.5 à 5.1. Emplacement de l'épicentre corrigé de 3.8 km (2.3 mi) au SSW.
17 Feb 06:46: Magnitude recalculée de 5.1 à 5.4.
Update Wed, 17 Feb 2021, 03:42
Significant magnitude 5.5 earthquake 26 km northeast of Patras, Greece
5.5 quake 17 Feb 5:36 am (GMT +2)
5.5 quake 17 Feb 5:36 am (GMT +2)
A magnitude 5.5 earthquake near Patras, Achaea, Western Greece, Greece, was reported only 6 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 early morning on Wednesday 17 February 2021 at 5:36 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.
Based on the preliminary seismic data, the quake should have been widely felt by almost everyone in the area of the epicenter. It might have caused light to moderate damage.
Moderate shaking probably occurred in Kastraki (pop. 910) located 7 km from the epicenter, Nafpaktos (pop. 13,400) 12 km away, and Aigio (pop. 20,400) 19 km away.
In Patras (pop. 168,000) located 26 km from the epicenter, and Agrinio (pop. 46,900) 55 km away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Livadeia (pop. 21,500) located 79 km from the epicenter, Amaliada (pop. 16,800) 85 km away, Pýrgos (pop. 22,400) 92 km away, and Corinth (pop. 30,200) 99 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: 17 Feb 2021 03:36:09 UTC -
Local time at epicenter: mercredi, 17 févr. 2021 05:36 (GMT +2)
Magnitude: 5.4
Profondeur: 10.0 km
Epicenter latitude / longitude: 38.36°N / 21.95°E (Ionian Sea, Grèce)
Volcan le plus près: Sousaki (110 km / 68 mi)
Nearby towns and cities:
8 km ENE de Psathopyrgos (pop: 663) --> Voir les séismes à proximité!
11 km ESE de Naupacte (Nafpaktos) (pop: 13,400) --> Voir les séismes à proximité!
17 km NO de Aigio (pop: 20,400) --> Voir les séismes à proximité!
23 km NE de Patras (pop: 168,000) --> Voir les séismes à proximité!
55 km ESE de Agrinio (pop: 46,900) --> Voir les séismes à proximité!
81 km O de Livadiá (Levádhia) (pop: 21,500) --> Voir les séismes à proximité!
82 km NE de Amaliada (pop: 16,800) --> Voir les séismes à proximité!
88 km NNE de Pýrgos (Pirgos) (pop: 22,400) --> Voir les séismes à proximité!
99 km ONO de Corinthe (pop: 30,200) --> Voir les séismes à proximité!
161 km ONO de Athènes (pop: 664,000) --> Voir les séismes à proximité!
179 km O de Euboea Island (pop: 198,100) --> Voir les séismes à proximité!
143 km ONO de Nisi Agkistri Island (pop: 1,140) --> Voir les séismes à proximité!
440 km NO de Crete Island (pop: 623,100) --> Voir les séismes à proximité!
Weather at epicenter at time of quake:
Clear Sky 1.1°C (34 F), humidity: 51%, wind: 1 m/s (2 kts) from SW
Primary data source: GFZ (German Research Centre for Geosciences)
Estimated released energy: 7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) Plus d'infos
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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.ProfondeurLieuSource
5.410 kmGreeceGFZ
5.06 km11 Km ESE From Nafpaktos, GreeceNOA
5.56 kmGREECEEMSC
5.55.3 km12 Km N of Kamárai, GreeceUSGS
5.19.8 kmGreece [Sea]INGV
5.422 kmGreeceGeoAu
5.15 kmGreeceNIEP
5.110 km925 Km NW of Marsa Matruh, GreeceENSN
5.56 kmNavpaktos / Griechenland, GreeceZAMG
5.141 kmGreeceBMKG

User reports for this quake (30)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Contribute:
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Mark as helpful or interesting.
Send your own user report!
23.8 km SW of epicenter [Map] / Strong shaking (MMI VI) : Everything moved in the apartment .. it woke me up .. | 20 users found this interesting. (reported through our app)  
MARATHIAS (7.1 km NE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s : Doors, Tiles, Windows were dancing! But hopefully no damage. | 15 users found this interesting.  
1125 km NW of epicenter [Map] / not felt : Was asleep and kept sleeping. I live on the 2nd floor. | One user found this interesting. (reported through our app)  
1357.6 km ESE of epicenter [Map] / not felt (reported through our app)
1348.2 km ESE of epicenter [Map] / not felt
654.4 km WSW of epicenter [Map] / not felt (reported through our app)
164.2 km ESE of epicenter [Map] / Light shaking (MMI IV)
1105.4 km NNW of epicenter [Map] / not felt (reported through our app)
9.9 km WSW of epicenter [Map] / Light shaking (MMI IV) / 2-5 s
Athens, omonoia (161.1 km ESE of epicenter) [Map] / Weak shaking (MMI III)
22.9 km SW of epicenter [Map] / Light shaking (MMI IV) / 15-20 s
I was awoken by a small tremour fro 5 sec (178.2 km NNW of epicenter) [Map] / not felt / both vertical and horizontal swinging / 2-5 s (reported through our app)
Arachovitika (9.7 km WSW of epicenter) [Map] / Strong shaking (MMI VI) / horizontal (sideways) swinging / 2-5 s
Galaxid (38.4 km E of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s
955.6 km NNW of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
Patra (20.7 km WSW of epicenter) [Map] / Moderate shaking (MMI V) / complex rolling (tilting in multiple directions) (reported through our app)
Lefkada, Lefkada (120.5 km WNW of epicenter) [Map] / Very weak shaking (MMI II)
23.2 km SW of epicenter [Map] / Strong shaking (MMI VI) (reported through our app)
23.2 km SW of epicenter [Map] / Moderate shaking (MMI V) / vibration and rolling / 20-30 s
1246.3 km SE of epicenter [Map] / not felt (reported through our app)
Güzelcamli / Ayden / not felt : not felt  
Patras / Moderate shaking (MMI V) / 5-10 s
Athens / Weak shaking (MMI III)
Güzelcamli / not felt
marathias / Moderate shaking (MMI V)
Λαμία / Light shaking (MMI IV) / single lateral shake / 2-5 s
patras / Strong shaking (MMI VI) / complex motion difficult to describe / 5-10 s
Patra / Moderate shaking (MMI V)
Sella patras greece / Strong shaking (MMI VI) / 1-2 s
Λαμια / Weak shaking (MMI III) / 5-10 s
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Aftershocks

More info
Recorded aftershocks, latest first (101 quakes):
  • 14 Apr 2021 05:14 UTC
    | M 2.4 |
    8.2 km (5.1 mi) depth
    |
    27 km (17 mi) distance
    | NOA | Details
  • 06 Apr 2021 15:16 UTC
    | M 2.2 |
    11.9 km (7.4 mi) depth
    |
    28 km (17 mi) distance
    | NOA | Details
  • 04 Apr 2021 21:14 UTC
    | M 2.2 |
    5 km (3.1 mi) depth
    |
    19 km (12 mi) distance
    | NOA | Details
  • 02 Apr 2021 12:23 UTC
    | M 2.0 |
    12.6 km (7.8 mi) depth
    |
    17 km (10 mi) distance
    | NOA | Details
  • 02 Apr 2021 04:00 UTC
    | M 2.8 |
    16.4 km (10.2 mi) depth
    |
    30 km (19 mi) distance
    | NOA | Details
  • 01 Apr 2021 06:43 UTC
    | M 2.4 |
    59.1 km (36.7 mi) depth
    |
    22 km (14 mi) distance
    | NOA | Details
  • 31 Mar 2021 20:16 UTC
    | M 2.2 |
    9 km (5.6 mi) depth
    |
    1 km (1 mi) distance
    | NOA | Details
  • 25 Mar 2021 07:02 UTC
    | M 2.2 |
    10 km (6.2 mi) depth
    |
    21 km (13 mi) distance
    | NOA | Details
  • 25 Mar 2021 05:58 UTC
    | M 2.1 |
    5 km (3.1 mi) depth
    |
    9 km (5 mi) distance
    | NOA | Details
  • 24 Mar 2021 02:25 UTC
    | M 2.1 |
    10.7 km (6.6 mi) depth
    |
    20 km (12 mi) distance
    | NOA | Details
  • 23 Mar 2021 21:05 UTC
    | M 2.4 |
    10.3 km (6.4 mi) depth
    |
    1 km (1 mi) distance
    | NOA | Details
  • 23 Mar 2021 02:11 UTC
    | M 2.0 |
    10 km (6.2 mi) depth
    |
    26 km (16 mi) distance
    | NOA | Details
  • 22 Mar 2021 11:32 UTC
    | M 2.0 |
    14.3 km (8.9 mi) depth
    |
    27 km (17 mi) distance
    | NOA | Details
  • 22 Mar 2021 10:27 UTC
    | M 2.2 |
    11.5 km (7.1 mi) depth
    |
    28 km (17 mi) distance
    | NOA | Details
  • 22 Mar 2021 07:09 UTC
    | M 2.5 |
    8.3 km (5.2 mi) depth
    |
    13 km (8 mi) distance
    | NOA | Details
  • 21 Mar 2021 13:58 UTC
    | M 3.1 |
    11.4 km (7.1 mi) depth
    |
    8 km (5 mi) distance
    | NOA | Details
  • Show all

Earlier earthquakes in the same area

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