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M5.5 Depth: 10.0 km

M5.5 Earthquake near South Sandwich Islands Region (South Georgia & South Sandwich Islands)

UTC time: 2025-09-12 03:31:06 UTC Local time: —
M5.5 earthquake near South Sandwich Islands on Sep 12, 2025 — map of epicenter and shaking intensity | QuakeMap24
M5.5 Earthquake near South Sandwich Islands Region (South Georgia & South Sandwich Islands) · 2025-09-12 03:31:06 UTC

About this earthquake

A magnitude M5.5 earthquake was recorded near South Sandwich Islands Region (South Georgia & South Sandwich Islands) on September 12, 2025 at 03:31 UTC. With a focal depth of about 10 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude can damage poorly built structures.

The data is provided by GFZ and cross-checked across seismological networks.

Map

Depth profile

Depth profile Depth: 10 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10 km
Shallow
10 km
10 km — shallower than the regional average (105.1 km)
Regional average: 105.1 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Nearby population centers

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

PlaceDistanceDirectionPopulation
Grytviken585.0 kmW2

GeoNames · CC BY 4.0

Volcanoes nearby

  • Leskov Island
    Distance: 21 km ·Stratovolcano ·Elevation: 190 m ·United Kingdom
  • Zavodovski
    Distance: 37 km ·Stratovolcano ·Elevation: 551 m ·Last eruption: 2016 ·United Kingdom
  • Hodson
    Distance: 62 km ·Stratovolcano ·Elevation: 835 m ·United Kingdom
  • Protector Seamounts
    Distance: 62 km ·Volcanic field ·Elevation: -55 m ·Last eruption: 1962 ·United Kingdom
  • Candlemas Island
    Distance: 109 km ·Stratovolcano ·Elevation: 550 m ·Last eruption: 1911 ·United Kingdom
  • Saunders
    Distance: 177 km ·Stratovolcano ·Elevation: 843 m ·Last eruption: 2026 ·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 hours5
Strongest subsequent eventM5.6
M4.82025-09-12 03:31:08 UTC40.3 kmSouth Sandwich Islands Region M5.12025-09-13 04:32:02 UTC87.2 kmSouth Sandwich Islands Region M5.62025-09-13 04:32:03 UTC99.4 kmSouth Sandwich Islands Region M5.42025-09-13 04:32:04 UTC74.1 kmEvent of magnitude 5.4, near of Mar del Plata (Monde) M5.42025-09-13 04:32:09 UTC94.1 kmSOUTH SANDWICH ISLANDS REGION M5.02025-10-10 12:26:10 UTC147.7 kmSouth Sandwich Islands Region M4.82025-10-10 12:26:10 UTC144.6 kmSOUTH SANDWICH ISLANDS REGION M5.42025-10-11 08:06:38 UTC137.6 kmSouth Sandwich Islands Region M5.52025-10-11 08:06:39 UTC98.3 kmSouth Sandwich Islands Region M5.42025-10-11 08:06:44 UTC103.0 kmSouth Sandwich Islands region M5.32025-10-11 08:06:50 UTC117.2 kmEvent of magnitude 5.3, near of Mar del Plata (Monde) M5.32025-10-11 13:07:56 UTC100.7 kmSouth Sandwich Islands Region

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#8
Earlier events M≥485
Earlier events M≥547
Compared since2025-01-01

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

Strongest earlier events

M6.22025-01-01 13:48:25 UTC81.8 kmSouth Sandwich Islands Region M6.12025-01-01 13:48:24 UTC84.7 kmSouth Sandwich Islands region M6.02025-03-14 23:42:31 UTC98.7 kmSouth Sandwich Islands Region M5.72025-03-27 00:41:25 UTC50.7 kmSouth Sandwich Islands region M5.62025-06-10 04:07:23 UTC119.8 kmSouth Sandwich Islands region

Historic earthquake map · South Georgia & South Sandwich Islands

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · South Georgia & South Sandwich Islands

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

Stats (last 24h)

Global (24h)
613
Country (24h)
South Georgia & South Sandwich Islands
0
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