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5.0MAG

MODERATE EARTHQUAKE

South Sandwich Islands region

USGS

A magnitude 5.0 earthquake struck South Sandwich Islands region on 30 Aug 2026, 03:55 UTC. The hypocentre was 142 km below the surface — intermediate by seismological convention. No felt reports have been received so far. 3 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.

Depth
142 km

intermediate

Latitude
56.48°S

27.08°W longitude

Time
03:55 UTC

30 Aug 2026

Magnitude
M5.0

mb

EPICENTRE

View the official report↗

MAGNITUDE 5.0

Can damage poorly constructed buildings; well-built structures usually escape with little harm.

The scale is logarithmic: this released about 32 times the energy of a magnitude 4.0, roughly the energy of 477 tonnes of TNT.

142 KM DEEP

At this depth the energy spreads before it reaches the surface. Shaking is usually weaker than a shallow earthquake of the same size, but it can be felt across a wider area.

NEARBY IN THE PAST 30 DAYS

3 earthquakes above our reporting threshold within 250 km of this one, the largest a magnitude 5.1.

OTHER RECENT EARTHQUAKES

M5.0 earthquake — South Sandwich Islands region · Quakewire