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Moderate mag. 4.4 earthquake - 4.2 km northwest of Thebes, Nomos Voiotias, Central Greece, on Saturday, Sep 3, 2022 at 11:27 am (GMT +3) -

Moderate mag. 4.4 earthquake - 4.2 km northwest of Thebes, Nomos Voiotias, Central Greece, on Saturday, Sep 3, 2022 at 11:27 am (GMT +3) Moderate mag. 4.4 earthquake - 4.2 km northwest of Thebes, Nomos Voiotias, Central Greece, on Saturday, Sep 3, 2022 at 11:27 am (GMT +3)

Moderate magnitude 4.4 earthquake at 9 km depth

3 Sep 08:30 UTC: First to report: GFZ after 2 minutes.
3 Sep 08:34: Magnitude recalculated from 4.4 to 4.0. Epicenter location corrected by 1.1 km (0.7 mi) towards S.
3 Sep 08:47: Now using data updates from USGS
Update Sat, 3 Sep 2022, 08:39

Moderate 4.0 quake hits near Athens, Nomarchía Athínas, Attica, Greece

4.0 quake 3 Sep 11:27 am (GMT +3)
4.0 quake 3 Sep 11:27 am (GMT +3)
A magnitude 4.0 earthquake near Athens, Nomarchía Athínas, Attica, Greece, was reported only 11 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 morning on Saturday, September 3rd, 2022, at 11:27 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 European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.1. Other agencies reporting the same quake include the citizen-seismograph network of RaspberryShake at magnitude 4.0, and the National Observatory of Athens (NOA) at magnitude 3.9.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Kallithea (pop. 700) located 3 km from the epicenter, Thebes (pop. 22,000) 8 km away, and Chalcis (pop. 59,100) 23 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Acharnes (pop. 99,300) located 39 km from the epicenter, Petroúpolis (pop. 59,000) 39 km away, Peristeri (pop. 140,000) 42 km away, Nikaia (pop. 89,400) 45 km away, Athens (pop. 664,000) 47 km away, Piraeus (pop. 163,700) 47 km away, and Kallithea (pop. 100,600) 48 km away.

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Earthquake details

Date & timeSep 3, 2022 08:27:45 UTC -
Local time at epicenterSaturday, Sep 3, 2022 at 11:27 am (GMT +3)
StatusConfirmed
Magnitude4.4
Depth9.3 km
Epicenter latitude / longitude38.3571°N / 23.2927°E (Nomos Voiotias, Central Greece, Greece)
Antipode38.357°S / 156.707°W
Shaking intensityLight shaking
Felt60 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoSousaki (50 km / 31 mi)
Nearby towns and cities4 km (3 mi) NNW of Thebes (pop: 22,000) | Show on map | Quakes nearby
30 km (18 mi) WSW of Chalcis (pop: 59,100) | Show on map | Quakes nearby
37 km (23 mi) ESE of Livadia (Levádhia) (pop: 21,500) | Show on map | Quakes nearby
49 km (30 mi) NW of Petroúpolis (pop: 59,000) | Show on map | Quakes nearby
49 km (31 mi) NW of Acharnes (Attica) (pop: 99,300) | Show on map | Quakes nearby
52 km (32 mi) NW of Peristeri (Attica) (pop: 140,000) | Show on map | Quakes nearby
56 km (35 mi) NW of Piraeus (Attica) (pop: 163,700) | Show on map | Quakes nearby
56 km (35 mi) NW of Athens (Attica) (pop: 664,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky 28°C (82 F), humidity: 50%, wind: 2 m/s (3 kts) from NNW
Estimated seismic energy released2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 tons of TNT) | about seismic energy
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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
3.98.3 kmGreece: 3 Km E From ThebesNOA
4.49.3 km4 Km NNW of Thívai, GreeceUSGS
4.49.3 kmGreeceRaspberryShake
4.40 kmGREECEEMSC
4.010 kmGreeceGFZ
3.96.4 kmGreece: YUNANISTANKOERI-RETMC

Seismograms

Seismic station: Ankara, Turkey (ANTO/IU network) | Distance from quake: 836 km / 520 mi | Show on map | Station Info
Seismic station Ankara, Turkey: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (61)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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athens greece (56.2 km SE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : computer monitors shook lightly and felt it through the chair. | One user found this interesting.  
ATHENS (56.6 km SE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s : desk shaked | One user found this interesting.  
Piraeus (56.2 km SE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s : Shaking a lot, object fell down | One user found this interesting.  
Zografos, Nomarchía Athínas, Attica (58.3 km SE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / very short : Very weak slight sideways movement for a split second | One user found this interesting. (reported through our app)  
Galatsi / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s : Not very powerful. I estimated it between 4-5 Richter. Was in the 5th floor, where shaking is more pronounced  
Galatsi / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s : Not very powerful. I estimated it between 4-5 Richter. Was in the 5th floor, where shaking is more pronounced  
Glyfada / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s : Estaba en el sofá sentada y me he movido muy levemente de un lado a otro, como si alguien me balancease muy levemente  
marousi / Very weak shaking (MMI II) / horizontal (sideways) swinging / 1-2 s : just like weak waves | One user found this interesting.  
Palio falio / Very weak shaking (MMI II) / horizontal (sideways) swinging / 5-10 s : Tremor. Building slightly swayed | One user found this interesting.  
Θηβα (4.5 km SSE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s
ATHENS (61.1 km SE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s : Was sitting on the balcony and the chair started swaying for about 5 seconds  
Glyfada, GR (66.4 km SE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s
Athens (55.9 km SE of epicenter) [Map] / Very weak shaking (MMI II) : On 6th floor Central Athens apartment. Felt about 10 seconds of swaying feeling.  
Moschato, Athens (56.2 km SE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s : light shaking  
Metaxourgio (68.7 km S of epicenter) [Map] / Very weak shaking (MMI II)
Athens (54.5 km SE of epicenter) [Map] / Very weak shaking (MMI II) : 3 seconds very very weak shaking  
Piraeus,greece (56.4 km SE of epicenter) [Map] / Very weak shaking (MMI II) : Im was relaxing in my bed feeling the shaking  
Nikaia, Nomós Piraiós, Attica (53 km SE of epicenter) [Map] / Weak shaking (MMI III)
Pireas (55.7 km SE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / 2-5 s
Κερατσίνι (52.1 km SSE of epicenter) [Map] / Weak shaking (MMI III)
Néa Smýrni, Nomarchía Athínas, Attica (58 km SE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s
Voula (70.3 km SE of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s
Thiva (5.8 km SE of epicenter) [Map] / Light shaking (MMI IV) / simple rolling (tilting sideways along one direction) / 2-5 s : Was heavy  
Piraeus, Attica, Attica (56.3 km SSE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 5-10 s
Agios Dimitrios, Nomarchía Athínas, Attica (60.1 km SE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : Just a light to medium vibration - shake  
Κερατσίνι (52.5 km SE of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 1-2 s : Στο γραφείο μου στο σπίτι ενώ δούλευα στον υπολογιστή.  
Περαμα (49.3 km SSE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s
Athens (60.9 km SE of epicenter) [Map] / Moderate shaking (MMI V) / very short
glifada (65.6 km SE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 1-2 s
Μανιατικα (53.6 km SE of epicenter) [Map] / Weak shaking (MMI III)
Athens (55 km SE of epicenter) [Map] / Very weak shaking (MMI II)
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Earlier earthquakes in the same area

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