Shallow M5.4 AFTERSHOCK struck on Monday Morning in the North Atlantic Ocean 196km from Les Abymes (Guadeloupe).

Written by Earthquakelist.org on October 27th, 2025. Last updated November 8th, 2025.

A shallow and significant MAG-5.4 aftershock struck in the North Atlantic Ocean 196 kilometer from Les Abymes, Guadeloupe in the morning of Monday October 27th, 2025. Shaking may have been felt by a total of 320 thousand people. Other countries near the epicenter include Dominica, Antigua and Barbuda, Martinique and Montserrat.

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Earthquake Summary

This earthquake hit under water in the North Atlantic Ocean, 172 kilometers (107 mi) off the coast of Guadeloupe, 196 kilometer east of Les Abymes. The center of this earthquake had a very shallow depth of 10 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time:	Oct 27, 2025 09:26 (Guadeloupe Time) - Oct 27, 2025 13:26 Universal Time.
Location:	196 km east of Les Abymes, Guadeloupe, Guadeloupe. Coordinates 16°32'20"N 59°41'6"W.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.4 Detected by 23 stations. Maximum Error Range ±0.065 .
Depth:	10 km (6 mi) A very shallow depth.
Max. Intensity:	III Weak On the Modified Mercalli Scale.
Tsunami Risk:	Low tsunami risk Earthquakes under MAG-6.5 do not usually cause tsunami's. Always stay cautious - More info here.

Minimal impact predicted

Based on scientific estimates by the US Geographic Survey (USGS), the risk of high fatalities for this earthquake is classified at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 fatalities, and a 96% chance that the number of fatalities falls no higher than 10.

The USGS classifies the economic impact of this earthquake at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 million US Dollars in economic damage and impact, and a 96% chance that the economic impact of this earthquake falls no higher than 10 million USD.

Roughly 320 thousand people exposed to shaking

An estimated 320 thousand have been exposed to shaking (An MMI or Modified Mercalli Intensity level II or higher) as a result of this earthquake according scientific estimates published by the USGS.

Weak shaking and probably no damage may have been experienced by an estimated 380 people. At III, it is the highest MMI level this earthquake has caused. Intensity level II was experienced by the majority of people (around 320 thousand). In their region, very weak shaking and no damage can be expected.

People in 4 countries have been exposed to shaking. In Guadeloupe , around 190 thousand people, with impact levels up to III (weak shaking, probably no damage). In Dominica , around 70 thousand people. In Martinique , around 60 thousand people.

Nearby towns and cities

Guadeloupe , Dominica , Antigua and Barbuda , Martinique and Montserrat are all located within 300km distance of the epicenter of the earthquake.

The closest significant population center near the earthquake is Le Moule in Guadeloupe, Guadeloupe. Le Moule is located 179 kilometer (111 mi) east of the epicenter. The intensity of shaking and damage in Le Moule is estimated to be around level II on the Modified Mercalli Intensity scale (very weak shaking, no damage).

The table below provides an overview of all places in proximity of today's earthquake. Where available, the estimated intensity on the Modified Mercalli Intensity Scale in each place is included. Places where this information is omitted likely experienced little impact.

Overview of nearby places

Earthquake Intensity Map

The maximum intensity (MMI Scale) caused by this earthquake is III. The map below shows in which areas this earthquake was the most and least impactful. It is based on data from the US Geographic Survey.

I Not felt

II Weak

III Weak

IV Light

V Moderate

VI Strong

VII Very Strong

VIII Severe

IX Violent

X Extreme

This is likely an aftershock

Approximately 48 mins before this earthquake hit, a larger 6.5 magnitude earthquake struck 12 km (8 mi) east of this one. For that reason, we classify the Mag. 5.4 earthquake as an aftershock.

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.

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. In total, 10 earthquakes with a magnitude of 5.4 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.

Low tsunami risk

Based on early data it appears this earthquake was not strong enough (lower than MAG-6.5) to be likely to cause destructive tsunami's. However this earthquake appeared to have hit at a shallow depth under sea, so stay cautious and monitor advice from local authorities.

Tsunami Risk Factors

Sources

Last updated 08/11/25 14:48 (). As more information on this earthquake becomes available this article will be updated. This article is automatically composed based on data originating from multiple sources.

1. US Geographic Society (USGS): Earthquake us6000rjr7
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20251027_0000164
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

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