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5.1MAG

MODERATE EARTHQUAKE

36 km E of Safotu, Samoa

USGS

A magnitude 5.1 earthquake struck 36 km E of Safotu, Samoa on 15 Oct 2026, 03:36 UTC. The hypocentre was 13.2 km below the surface — shallow by seismological convention. No felt reports have been received so far. The figures have been revised 2 times since the first report. 2 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.

Depth
13.2 km

shallow

Latitude
13.41°S

172.07°W longitude

Time
03:36 UTC

15 Oct 2026

Magnitude
M5.1

mb

EPICENTRE

View the official report↗

MAGNITUDE 5.1

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

The scale is logarithmic: this released about 45 times the energy of a magnitude 4.0, roughly the energy of 674 tonnes of TNT.

13.2 KM DEEP

Shallow earthquakes release their energy close to the surface, so they are felt more strongly, and do more damage, than deeper earthquakes of the same magnitude.

NEARBY IN THE PAST 30 DAYS

2 earthquakes above our reporting threshold within 250 km of this one, the largest a magnitude 5.2.

OTHER RECENT EARTHQUAKES

M5.1 earthquake — Safotu, Samoa · Quakewire