Earthquakes in Samoa

No events have been recorded in Samoa in the past 30 days, of which 5 reached magnitude 4 or above, the point at which shaking becomes widely noticeable. Activity here is almost entirely crustal, which means shaking at the surface is strong relative to the magnitudes involved.

5 earthquakes have been recorded in Samoa in our catalogue, 0 of them in the past 30 days.

The average magnitude is 5.4 and the average focal depth 18 km. 5 events reached magnitude 4 or above and 3 reached magnitude 5 or above.

The strongest earthquake recorded in Samoa in this period was a magnitude 6.2 event near Lotofagā, Samoa on 22 March 2026, at a depth of 10 km. A magnitude 6.2 earthquake radiates roughly 30,089 tons of TNT equivalent in seismic energy.

Locations recording the most events include Gataivai (4), Lotofagā (1).

100% of events here are shallow (under 70 km), 0% intermediate (70–300 km) and 0% deep-focus (over 300 km). Almost everything here is crustal. That is characteristic of transform faulting or continental deformation rather than subduction — and it means shaking at the surface is strong for the magnitudes involved.

By band, the catalogue holds 2 in the magnitude 4 range, 1 in the magnitude 5 range, 2 in the magnitude 6 range.

The busiest single day was 22 March 2026, with 2 recorded events.

No event in this record carries a USGS link to NOAA tsunami information.