USGS · EARTHQUAKE

M 5.1 · 39 km W of Mosteiros, Portugal

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

Source agencyUSGS

Provider event IDus6000u3p1

Magnitude5.1 mww

Depth10.0 km

Occurred / latest reportedOct 20, 2026, 6:07 PM UTC

Provider last updatedOct 21, 2026, 3:07 AM UTC

TerraPulse collectedOct 21, 2026, 3:09 AM UTC

Catalog statusreviewed

Reported geometryPoint

Location qualityValidated coordinate format (not accuracy assurance)

Country assignmentOffshore, non-point or unassigned

Coordinates (lon, lat)-26.2588, 37.9575

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": [
    -26.2588,
    37.9575,
    10
  ]
}

Revision observations

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

Collected2026-10-21T03:09:04.742Z· Provider update2026-10-21T03:07:59.664Z · Magnitude 5.1

Collected2026-10-21T01:50:15.154Z· Provider update2026-10-20T22:39:58.636Z · Magnitude 5.1

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

No reported events in selected data sources.