M4.9 Depth: 10.0 km

M4.9 Earthquake near South Sandwich Islands region

UTC time: 2025-12-23 12:16:26 UTC Local time: —

About this earthquake

A magnitude M4.9 earthquake was recorded near South Sandwich Islands region on December 23, 2025 at 12:16 UTC. With a focal depth of about 10 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Tremors of this size are distinctly felt and can occasionally cause light damage.

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

Details

Magnitude

M4.9

Depth

10.0 km

UTC time

2025-12-23 12:16:26 UTC

Local time

—

Country

—

Source

usgs

Coordinates

-58.40660, -23.44750

Temperature

0.6°C

Map

Depth profile

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

Volcanoes nearby

Montagu Island

Distance: 170 km ·Shield ·Elevation: 1'370 m ·Last eruption: 2007 ·United Kingdom
Bristol Island

Distance: 191 km ·Stratovolcano ·Elevation: 1'100 m ·Last eruption: 2016 ·United Kingdom
Saunders

Distance: 191 km ·Stratovolcano ·Elevation: 843 m ·Last eruption: 2026 ·United Kingdom
Candlemas Island

Distance: 241 km ·Stratovolcano ·Elevation: 550 m ·Last eruption: 1911 ·United Kingdom
Southern Thule

Distance: 245 km ·Stratovolcano(es) ·Elevation: 1'075 m ·Last eruption: 1975 ·United Kingdom
Hodson

Distance: 291 km ·Stratovolcano ·Elevation: 835 m ·United Kingdom

Stats (last 24h)

Global (24h)

658

Country (24h)

—

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