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Light mag. 3.9 earthquake - 16 km east of Lorient, Morbihan, Bretagne, France, on Sunday, Oct 23, 2022 at 7:52 pm (GMT +0) -

Light magnitude 3.9 earthquake at 14 km depth

23 Oct 19:54 UTC: First to report: VolcanoDiscovery after 3 minutes.
23 Oct 19:56: Now using data updates from RENASS
... [show all] ...
24 Oct 10:00: Hypocenter depth recalculated from 11.1 to 13.6 km (from 6.9 to 8.5 mi).

Update Sun, 23 Oct 2022, 20:00

Small tremor of magnitude 3.7 just reported 17 km east of Lorient, France

3.7 quake 23 Oct 9:52 pm (GMT +2)

A very shallow magnitude 3.7 earthquake was reported in the evening near Lorient, Morbihan, Bretagne, France.
According to France's Réseau National de Surveillance Sismique (RéNaSS), the quake hit on Sunday, October 23rd, 2022, at 9:52 pm local time at a very shallow depth of 9.4 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. 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 3.8 earthquake.
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 Landévant (pop. 2,300) located 3 km from the epicenter, Hennebont (pop. 14,300) 13 km away, Auray (pop. 12,300) 14 km away, Lanester (pop. 24,400) 15 km away, and Lorient (pop. 58,100) 17 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Ploemeur (pop. 20,700) located 22 km from the epicenter, Vannes (pop. 54,000) 30 km away, and Pontivy (pop. 16,800) 39 km away.

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Earthquake details

Date & time	Oct 23, 2022 19:52:20 UTC -
Local time at epicenter	Sunday, Oct 23, 2022 at 7:52 pm (GMT +0)
Status	Confirmed
Magnitude	3.9
Depth	13.6 km
Epicenter latitude / longitude	47.72981°N / 3.1583°W (Morbihan, Bretagne, France)
Antipode	47.73°S / 176.842°E
Shaking intensity	Light shaking near epicenter
Felt	0 reports
Primary data source	RENASS (Réseau National de Surveillance Sismique (RéNaSS))
Nearest volcano	###NEARESTVOLCANO2###
Nearby towns and cities	3 km (2 mi) SE of Nostang (Brittany) (pop: 1,260) \| Show on map \| Quakes nearby 14 km (9 mi) ESE of Lanester (Morbihan) (pop: 24,400) \| Show on map \| Quakes nearby 16 km (10 mi) E of Lorient (pop: 58,100) \| Show on map \| Quakes nearby 20 km (13 mi) E of Ploemeur (pop: 20,700) \| Show on map \| Quakes nearby 31 km (19 mi) WNW of Vannes (pop: 54,000) \| Show on map \| Quakes nearby 40 km (25 mi) SSW of Pontivy (Morbihan) (pop: 16,800) \| Show on map \| Quakes nearby 119 km (74 mi) WSW of Rennes (pop: 209,400) \| Show on map \| Quakes nearby 426 km (265 mi) WSW of Paris (Île-de-France) (pop: 2,138,600) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Scattered Clouds 16.7°C (62 F), humidity: 81%, wind: 8 m/s (15 kts) from WSW
Estimated seismic energy released	4.5 x 10¹⁰ joules (12.4 megawatt hours, equivalent to 10.7 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
3.9	14 km	France: Near Lanester	RENASS
3.9	10 km	FRANCE	EMSC
3.9	10 km	France	RaspberryShake
2.9	31 km	France	IPMA
4.1	10 km	France: 0 Km N De Pluvigner (Morbihan)	CEA-DASE

Most recent quakes Top 20 past 24 hrs Quakes in France

Seismograms

Seismic station: CARRICKBYRNE, CO WEXFORD (IWEX/EI network) | Distance from quake: 577 km / 359 mi | Show on map | Station Info

Seismic station CARRICKBYRNE, CO WEXFORD: 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. Bandpass filter applied: 0.5-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake

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

There are no user reports for this quake.

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