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M5.9 Earthquake near South Sandwich Islands region

UTC time: 2025-08-31 16:24:28 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

Magnitude
M5.9
Depth
84.6 km
Source
NNSN

South Sandwich Islands region

Map

M5.9 Earthquake near South Sandwich Islands region · 2025-08-31 — Map showing the location of the epicenter
M5.9 Earthquake near South Sandwich Islands region · 2025-08-31 — Map showing the location of the epicenter

About this earthquake

A magnitude M5.9 earthquake was recorded near South Sandwich Islands region on August 31, 2025 at 16:24 UTC. The earthquake originated at an intermediate depth of about 85 km. Events of this size can cause damage near the epicenter.

The event was recorded by NNSN.

Details

ID
fb6fef1cbaf0624e08d43cf176183925198bde86
Magnitude
M5.9
Depth
84.6 km
UTC time
2025-08-31 16:24:28 UTC
Local time
—
Country
—
Source
nnsn
Coordinates
-58.41500, -25.59200

Depth profile

Depth profile Depth: 84.6 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 84.6 km
Intermediate
84.6 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation
Grytviken813.2 kmNW2

GeoNames · CC BY 4.0

Volcanoes nearby

  • Montagu Island
    Distance: 46 km ·Shield ·Elevation: 1'370 m ·Last eruption: 2007 ·United Kingdom
  • Saunders
    Distance: 86 km ·Stratovolcano ·Elevation: 843 m ·Last eruption: 2026 ·United Kingdom
  • Bristol Island
    Distance: 86 km ·Stratovolcano ·Elevation: 1'100 m ·Last eruption: 2016 ·United Kingdom
  • Southern Thule
    Distance: 148 km ·Stratovolcano(es) ·Elevation: 1'075 m ·Last eruption: 1975 ·United Kingdom
  • Candlemas Island
    Distance: 162 km ·Stratovolcano ·Elevation: 550 m ·Last eruption: 1911 ·United Kingdom
  • Hodson
    Distance: 212 km ·Stratovolcano ·Elevation: 835 m ·United Kingdom

Subsequent earthquakes nearby

Events recorded after this earthquake within 150 km. They are not automatically classified as aftershocks.

First 6 hours1
First 24 hours1
First 72 hours1
Strongest subsequent eventM5.9
M5.92025-08-31 16:24:29 UTC0.0 kmSOUTH SANDWICH ISLANDS REGION M4.92025-09-13 11:08:26 UTC131.6 kmSouth Sandwich Islands region M5.42025-09-19 09:11:56 UTC69.2 kmSouth Sandwich Islands region M5.42025-09-19 09:11:57 UTC66.0 kmSOUTH SANDWICH ISLANDS REGION M5.52025-09-19 09:11:58 UTC61.7 kmSouth Sandwich Islands Region M5.32025-09-19 09:12:00 UTC65.1 kmSouth Sandwich Islands Region M4.82025-09-19 09:22:34 UTC62.8 kmSOUTH SANDWICH ISLANDS REGION M4.82025-09-19 09:22:35 UTC60.4 kmSouth Sandwich Islands region M4.92025-09-19 09:22:35 UTC68.7 kmSouth Sandwich Islands Region M4.82025-09-19 09:22:43 UTC99.2 kmSouth Sandwich Islands Region M4.92025-09-19 09:27:56 UTC84.6 kmSouth Sandwich Islands Region M5.02025-09-19 10:06:42 UTC83.6 kmSouth Sandwich Islands Region

No unambiguous area assignment

Context for this earthquake

This event has no unambiguous country assignment in the analysed catalogue. It is therefore not assigned to a regional profile.

Earthquake overview

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#1
Earlier events M≥449
Earlier events M≥526
Compared since2025-01-03

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M5.72025-04-05 11:29:11 UTC131.7 kmSouth Sandwich Islands Region M5.62025-04-05 11:32:02 UTC55.7 kmSouth Sandwich Islands Region M5.62025-08-31 16:24:21 UTC19.6 kmSouth Sandwich Islands Region M5.62025-07-30 09:24:37 UTC68.0 kmSouth Sandwich Islands region M5.62025-07-30 09:24:37 UTC69.0 kmSOUTH SANDWICH ISLANDS REGION

Stats (last 24h)

Global (24h)
612
Country (24h)
—
—
Current earthquakes in
Magnitude Place Local time
No recent events available.

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