Shallow M4.1 Earthquake hit near Nice in France on Tuesday Morning.

Written by Earthquakelist.org on November 21st, 2023. Last updated December 3rd, 2023.

A shallow M4.1 earthquake struck under land 90 kilometer from Nice in France in the early morning of Tuesday November 21st, 2023. Italy, Monaco and Switzerland are also near its epicenter.

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Earthquake Summary

The earthquake struck on land in France, 90 kilometer (56 mi) north-northwest of Nice in Provence-Alpes-Côte d'Azur. The center of this earthquake had a very shallow depth of 7 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time:	Nov 21, 2023 06:52 (Rome Time) - Nov 21, 2023 05:52 Universal Time.
Location:	95 km SW of Turin, Piedmont, Italy. Coordinates 44°27'20"N 6°51'33"E.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 4.1 Detected by 9 stations. Maximum Error Range ±0.174 .
Depth:	7 km (4 mi) A very shallow depth.
Tsunami Risk:	Tsunami very unlikely While this was a shallow earthquake, it appears to have occurred under land with a magnitude not strong enough to cause tsunami's. Always stay cautious - More info here.

Nearby towns and cities

This earthquake struck within proximity of multiple countries. Italy , France , Monaco and Switzerland are all within 300km distance of its epicenter.

The closest significant population center near the earthquake is Cuneo in Piedmont, Italy. Cuneo is located 55 kilometer (34 mi) west of the epicenter.

Multiple major population centers exist within 300km of the earthquake that struck today. Turin is located 95 km to the north-east. Milan is located 215 km to the east-northeast. Marseille is located 175 km to the southwest.

The table below provides an overview of all places in proximity of today's earthquake.

Overview of nearby places

2 Aftershocks detected

After this earthquake struck, 2 smaller aftershocks occurred. At a distance of 38 km (24 mi) east of this earthquake, an aftershock struck 20 hrs later. It measured a magnitude of 2.6

Overview of foreshocks and aftershocks

More earthquakes coming?

Aftershocks are usually at least 1 order of magnitude less strong than main shocks. The more time passes, the smaller the chance and likely strength of any potential aftershocks.

In only six percent of cases, significant earthquakes are followed by a larger main shock, making the current earthquake a foreshock. While the chance of this happening is not so large, it is adviced to maintain cautiousness in the hours and days following a major earthquake.

Earthquakes like this happen often in the region

Earthquakes of this strength are very common in the region. This is the strongest earthquake to hit since November 8th, 2022, when a 4.5 magnitude earthquake hit 192 km (119 mi) further east-southeast. An even stronger magnitude 4.8 earthquake struck on November 11th, 2019.

In total, 18 earthquakes with a magnitude of 4.1 or higher have been registered within 300km (186 mi) of this epicenter in the past 10 years. This comes down to an average of once every 7 months.

Tsunami very unlikely

While MAG-6.5+ earthquakes may cause tsunami's, it appears that the epicenter of this earthquake hit under land. In addition, the reported depth is deeper than 100km, making the risk of a tsunami even less likely. However always stay cautious and monitor advice from local authorities.

Tsunami Risk Factors

Sources

Last updated 03/12/23 00:48 (). This article contains currently available information about the earthquake and is automatically composed. We continue to update this article up to a few days after the earthquake occurred.

1. US Geographic Society (USGS): Earthquake us6000lprc
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20231121_0000040
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

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