Shallow M5.4 AFTERSHOCK hit in the South Pacific Ocean 220km from Ushuaia (Argentina) on Friday Morning.

Written by Earthquakelist.org on May 2nd, 2025. Last updated May 19th, 2025.

In the South Pacific Ocean 220 kilometer from Ushuaia, Argentina, a shallow and significant Magnitude 5.4 aftershock occurred in the morning of Friday May 2nd, 2025. Shaking may have been felt by a total of 2 thousand people.

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Earthquake Summary

This earthquake hit under water in the South Pacific Ocean, 214 kilometers (133 mi) off the coast of Argentina, 220 kilometer south of Ushuaia in Tierra del Fuego. 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:	May 2, 2025 10:07 (Ushuaia Time) - May 2, 2025 13:07 Universal Time.
Location:	220 km south of Ushuaia, Tierra del Fuego, Argentina. Coordinates 56°47'18"S 68°5'43"W.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.4 Detected by 59 stations. Maximum Error Range ±0.076 .
Depth:	10 km (6 mi) A very shallow depth.
Max. Intensity:	IV Light 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 2 thousand people exposed to shaking

An estimated 2 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.

An estimated 1,750 people were exposed to level III. At this level, weak shaking and probably no damage can be expected.

People in 2 countries have been exposed to shaking. Roughly 2 thousand people were exposed to shaking in Chile , with level III (weak shaking, probably no damage) as the highest recorded. In Argentina , around 130 people.

Nearby towns and cities

This earthquake may have been felt in Argentina . The closest significant population center near the earthquake is Ushuaia in Tierra del Fuego, Argentina. Ushuaia is located 220 kilometer (137 mi) south of the epicenter.

Overview of nearby places

Earthquake Intensity Map

The graph below overlays a map of the region around the epicenter with earthquake intensity data provided by the US Geographic Survey. The highest intensity level detected for this earthquake is IV.

I Not felt

II Weak

III Weak

IV Light

V Moderate

VI Strong

VII Very Strong

VIII Severe

IX Violent

X Extreme

Shaking reported by 1 person

People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 1 person has reported shaking in one place in Argentina.We keep updating this article as more ground reports become available. You may report that you felt this earthquake here.

Places with most reports:

• Ushuaia, Tierra del Fuego, Argentina: 1 person.

This is likely an aftershock

This earthquake was an aftershock. A larger mag. 7.4 earthquake struck 7 km (4 mi) west in advance of this 5.4 earthquake around 9 mins earlier.

Overview of foreshocks and aftershocks

More earthquakes coming?

Earthquakes can create aftershocks. These are generally at least 1 magnitude lower than any main shock, and as time passes the chance and strength of aftershocks decreases.

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 are common in the region

Earthquakes of this strength occur quite regularly in the region. In total, 7 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 19/05/25 15:08 (). 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 us7000pwl1
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20250502_0000172
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

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