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Moderate mag. 4.6 earthquake - 42 km northwest of Agrinio, Aitoloakarnania, Western Greece, on Tuesday, Mar 21, 2023 at 2:20 am (GMT +2) -

Moderate magnitude 4.6 earthquake at 18 km depth

21 Mar 00:52 UTC: First to report: EMSC after 32 minutes.
21 Mar 00:52: Now using data updates from USGS
21 Mar 02:14: Epicenter location corrected by 0.6 km (0.4 mi) towards E.
21 Mar 02:42: Now using data updates from NOA

Earthquake details

Date & time	Mar 21, 2023 00:20:14 UTC -
Local time at epicenter	Tuesday, Mar 21, 2023 at 2:20 am (GMT +2)
Status	Confirmed
Magnitude	4.6
Depth	17.8 km
Epicenter latitude / longitude	38.9635°N / 21.2077°E (Aitoloakarnania, Western Greece, Greece)
Antipode	38.964°S / 158.792°W
Shaking intensity	Light shaking
Felt	9 reports
Primary data source	NOA (National Observatory of Athens)
Nearest volcano	Sousaki (200 km / 124 mi)
Nearby towns and cities	3 km (2 mi) NE of Krikellos (West Greece) (pop: 1,310) \| Show on map \| Quakes nearby 29 km (18 mi) SE of Arta (Epirus) (pop: 21,900) \| Show on map \| Quakes nearby 40 km (25 mi) E of Preveza (Préveza, Epirus) (pop: 17,300) \| Show on map \| Quakes nearby 42 km (26 mi) NNW of Agrinio (West Greece) (pop: 46,900) \| Show on map \| Quakes nearby 82 km (51 mi) SW of Trikala (Thessalien) (pop: 61,700) \| Show on map \| Quakes nearby 84 km (52 mi) SSE of Ioannina (Epirus) (pop: 65,600) \| Show on map \| Quakes nearby 92 km (57 mi) NNW of Patras (West Greece) (pop: 168,000) \| Show on map \| Quakes nearby 245 km (152 mi) WNW of Athens (Attica) (pop: 664,000) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake
Estimated seismic energy released	5 x 10¹¹ joules (139 megawatt hours, equivalent to 120 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.	Depth	Location	Source
4.6	18 km	Greece: 12 Km NNE From Amfilochia	NOA
4.7	10 km	GREECE	EMSC
4.5	10 km	Greece	IRIS
4.5	10 km	Greece	USGS
4.7	16 km	Greece: Katouna / Griechenland	ZAMG

Most recent quakes Top 20 past 24 hrs Quakes in Greece

User reports for this quake (9)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

Translate

Monastiraki, Aitolía kai Akarnanía, Grèce-Occidentale (19.6 km WSW of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s

Missolonghi, Aitoloakarnania, West Greece (65 km SSE of epicenter) [Map] / Light shaking (MMI IV) / 5-10 s

preveza (38.3 km W of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s

Αρτα (28.2 km NW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / very short

Aveza / Strong shaking (MMI VI) / horizontal (sideways) swinging / 30-60 s

Lefkada / Very weak shaking (MMI II) / horizontal (sideways) swinging / 20-30 s

30500 Sparto / Amfilochia / Light shaking (MMI IV) / rattling, vibrating / 2-5 s

Lefkas / Light shaking (MMI IV) / horizontal (sideways) swinging / 10-15 s

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