USGS · EARTHQUAKE

M 4.8 · 30 km E of Safotu, Samoa

A reported observation from the original data provider. Values may be revised as new information becomes available.

Source agencyUSGS

Provider event IDus6000u2eh

Magnitude4.8 mb

Depth13.5 km

Occurred / latest reportedOct 15, 2026, 3:36 AM UTC

Provider last updatedOct 15, 2026, 4:02 AM UTC

TerraPulse collectedOct 21, 2026, 1:50 AM UTC

Catalog statusreviewed

Reported geometryPoint

Location qualityValidated coordinate format (not accuracy assurance)

Country assignmentOffshore, non-point or unassigned

Coordinates (lon, lat)-172.1174, -13.4327

GDACS alertNot applicable

Magnitude measures earthquake size; intensity describes shaking at a location. Magnitude alone does not establish casualties or damage.

USGS tsunami flag:0 (not set). This flag does not confirm a tsunami or an official tsunami warning. Consult official warning centers.

Original reported GeoJSON geometry

{
  "type": "Point",
  "coordinates": [
    -172.1174,
    -13.4327,
    13.468
  ]
}

Revision observations

Changes observed since TerraPulse began collecting this event; this is not a complete provider revision history.

Collected2026-10-21T01:50:18.121Z· Provider update2026-10-15T04:02:36.040Z · Magnitude 4.8

Geographic proximity only; events have not been merged or confirmed as related. Distances use the first reported coordinate for non-point geometries.