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M5.1 Earthquake near South Sandwich Islands region

UTC time: 2025-04-21 15:46:59 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
M5.1
Depth
115.2 km
Source
USGS

South Sandwich Islands region

Map

M5.1 Earthquake near South Sandwich Islands region · 2025-04-21 — Map showing the location of the epicenter
M5.1 Earthquake near South Sandwich Islands region · 2025-04-21 — Map showing the location of the epicenter

About this earthquake

On April 21, 2025 at 15:46 UTC, a magnitude M5.1 earthquake occurred near South Sandwich Islands region. The earthquake originated at an intermediate depth of about 115 km. Events of this size can cause damage near the epicenter.

The event was recorded by USGS.

Details

ID
a0b26c7b274c773220c7da4a14571ce6c2cdcca1
Magnitude
M5.1
Depth
115.2 km
UTC time
2025-04-21 15:46:59 UTC
Local time
—
Country
—
Source
usgs
Coordinates
-56.12740, -27.96660

Depth profile

Depth profile Depth: 115.2 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 115.2 km
Intermediate
115.2 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
Grytviken579.2 kmW2

GeoNames · CC BY 4.0

Volcanoes nearby

  • Protector Seamounts
    Distance: 27 km ·Volcanic field ·Elevation: -55 m ·Last eruption: 1962 ·United Kingdom
  • Zavodovski
    Distance: 31 km ·Stratovolcano ·Elevation: 551 m ·Last eruption: 2016 ·United Kingdom
  • Leskov Island
    Distance: 60 km ·Stratovolcano ·Elevation: 190 m ·United Kingdom
  • Hodson
    Distance: 81 km ·Stratovolcano ·Elevation: 835 m ·United Kingdom
  • Candlemas Island
    Distance: 132 km ·Stratovolcano ·Elevation: 550 m ·Last eruption: 1911 ·United Kingdom
  • Saunders
    Distance: 207 km ·Stratovolcano ·Elevation: 843 m ·Last eruption: 2026 ·United Kingdom

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#10
Earlier events M≥437
Earlier events M≥512
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 UTC84.8 kmSouth Sandwich Islands Region M6.12025-01-01 13:48:24 UTC83.9 kmSouth Sandwich Islands region M6.02025-03-14 23:42:31 UTC71.5 kmSouth Sandwich Islands Region M5.72025-03-27 00:41:25 UTC34.2 kmSouth Sandwich Islands region M5.62025-03-18 22:52:34 UTC101.9 kmSouth Sandwich Islands region

Stats (last 24h)

Global (24h)
613
Country (24h)
—
—
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