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5.0MAG

MODERATE EARTHQUAKE

South Sandwich Islands region

USGS

A magnitude 5.0 earthquake struck South Sandwich Islands region on 19 Sept 2026, 09:59 UTC. The hypocentre was 77.6 km below the surface — intermediate by seismological convention. No felt reports have been received so far. 2 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.

Depth
77.6 km

intermediate

Latitude
55.63°S

28.11°W longitude

Time
09:59 UTC

19 Sept 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.

77.6 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

2 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