M4.8 Earthquake hit in the Tirreno Sea 134km from Naples (Italy) on Monday Morning.

Written by Earthquakelist.org on November 20th, 2023. Last updated November 30th, 2023.

A MAG-4.8 earthquake struck in the Tirreno Sea 134 kilometer from Naples, Italy in the morning of Monday November 20th, 2023.

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Earthquake Summary

This earthquake hit under water in the Tirreno Sea, 123 kilometers (76 mi) off the coast of Italy, 134 kilometer south-southwest of Naples in Campania. The center of this earthquake had a deep depth of 411 km.

Date and Time:	Nov 20, 2023 07:46 (Rome Time) - Nov 20, 2023 06:46 Universal Time.
Location:	134 km SSW of Naples, Campania, Italy. Coordinates 39°43'18"N 13°43'36"E.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 4.8 Detected by 83 stations. Maximum Error Range ±0.061 .
Depth:	411 km (255 mi) A deep depth.
Tsunami Risk:	Tsunami very unlikely Earthquakes under MAG-6.5 at depths deeper than 100km are very unlikely to cause tsunami's. Always stay cautious - More info here.

Nearby towns and cities

This earthquake may have been felt in Italy . Forio in Campania, Italy is the nearest significant place from the epicenter. The earthquake occurred 114 kilometer (71 mi) south of Forio.

Major cities near this earthquake: Rome is located 262 km to the north-northwest. Naples is located 134 km to the north-northeast. Palermo is located 180 km to the south.

A complete list of nearby places is included below.

Overview of nearby places

Shaking reported by 2 people in 2 countries

People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 2 people have reported shaking in 2 places in 2 countries (Slovenia, Italy).We keep updating this article as more ground reports become available. You may report that you felt this earthquake here.

Places with most reports:

• Ljubljana, Osrednjeslovenska, Slovenia: 1 person.
• Naples, Campania, Italy: 1 person.

Risk of aftershocks?

We have not yet detected any foreshocks or aftershocks (MAG-2.5 or higher) within 100km (62 mi) of this earthquake.

The risk of aftershocks decreases rapidly over time. Usually, aftershocks are at least one order of magnitude lower than a main shock.

It's always adviced to be cautious of the risk of a larger shock following any significant earthquake, however this risk is fairly small. There is a roughly 94 percent change that no larger main shock will follow in the days following this earthquake.

Earthquakes like this are common in the region

Earthquakes of this strength occur quite regularly in the region. This is the strongest earthquake to hit since May 1st, 2023, when a 5.2 magnitude earthquake hit 157 km (97 mi) further east. An even stronger magnitude 5.8 earthquake struck on October 28th, 2016.

In total, 9 earthquakes with a magnitude of 4.8 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 year.

Tsunami very unlikely

For a serious tsunami to occur, earthquakes usually need to have a magnitude of at least 6.5 and occur at a shallow depth of maximum 100km. Neither are the case with this earthquake. However always stay cautious and monitor advice from local authorities.

Tsunami Risk Factors

Sources

Last updated 30/11/23 01:18 (). 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 us6000lpk2
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20231120_0000051
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

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