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M5.5 Earthquake near South Sandwich Islands Region

UTC time: 2026-06-20 04:44:02 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
M5.5
Depth
10.0 km
Source
GFZ

South Sandwich Islands Region

Map

M5.5 Earthquake near South Sandwich Islands Region · 2026-06-20 — Map showing the location of the epicenter
M5.5 Earthquake near South Sandwich Islands Region · 2026-06-20 — Map showing the location of the epicenter

About this earthquake

On June 20, 2026 at 04:44 UTC, a magnitude M5.5 earthquake occurred near South Sandwich Islands Region. With a focal depth of about 10 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size can cause damage near the epicenter.

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

Details

ID
dc2fd2f98702d767dcfd978a93bf35828d73bbdd
Magnitude
M5.5
Depth
10.0 km
UTC time
2026-06-20 04:44:02 UTC
Local time
—
Country
—
Source
gfz
Coordinates
-57.99000, -25.36000
Temperature
-11.0°C

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
Why depth matters

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

Depth classes per USGS

Tectonic context

Located on the Sandwich Plate.
Near the boundary Sandwich ↔ South America · about 84 km away

Nearby population centers

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

PlaceDistanceDirectionPopulation
Grytviken803.1 kmNW2

GeoNames · CC BY 4.0

Volcanoes nearby

  • Saunders
    Distance: 70 km ·Stratovolcano ·Elevation: 843 m ·Last eruption: 2026 ·United Kingdom
  • Montagu Island
    Distance: 78 km ·Shield ·Elevation: 1'370 m ·Last eruption: 2007 ·United Kingdom
  • Candlemas Island
    Distance: 128 km ·Stratovolcano ·Elevation: 550 m ·Last eruption: 1911 ·United Kingdom
  • Bristol Island
    Distance: 133 km ·Stratovolcano ·Elevation: 1'100 m ·Last eruption: 2016 ·United Kingdom
  • Hodson
    Distance: 179 km ·Stratovolcano ·Elevation: 835 m ·United Kingdom
  • Southern Thule
    Distance: 194 km ·Stratovolcano(es) ·Elevation: 1'075 m ·Last eruption: 1975 ·United Kingdom

Subsequent earthquakes nearby

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

First 6 hours2
First 24 hours2
First 72 hours2
Strongest subsequent eventM5.4
M5.02026-06-20 04:44:04 UTC31.9 kmEvent of magnitude 5.0, near Mar del Plata (Monde) M5.12026-06-20 04:44:08 UTC7.4 kmSOUTH SANDWICH ISLANDS REGION M5.12026-07-02 02:17:45 UTC146.9 kmSouth Sandwich Islands Region M5.42026-07-02 02:57:32 UTC50.7 kmTierra del Fuego M4.92026-07-09 23:31:16 UTC70.3 kmSOUTH SANDWICH ISLANDS REGION M4.92026-07-13 17:45:19 UTC70.6 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#24
Earlier events M≥4151
Earlier events M≥5106
Compared since2025-01-03

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

Strongest earlier events

M6.52026-01-29 07:30:34 UTC8.9 kmSouth Sandwich Islands Region M6.02026-01-29 07:30:34 UTC22.3 kmSouth Sandwich Islands Region M5.92025-08-31 16:24:29 UTC49.2 kmSOUTH SANDWICH ISLANDS REGION M5.92025-08-31 16:24:28 UTC49.2 kmSouth Sandwich Islands region M5.82026-02-16 14:52:52 UTC20.9 kmSouth Sandwich Islands Region

Stats (last 24h)

Global (24h)
588
Country (24h)
—
—
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