USGS · EARTHQUAKE

M 1.5 · 56 km NW of McCarthy, Alaska

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

Source agencyUSGS

Provider event IDaka2026uvigee

Magnitude1.5 ml

Depth13.1 km

Occurred / latest reportedOct 21, 2026, 1:55 AM UTC

Provider last updatedOct 21, 2026, 1:56 AM UTC

TerraPulse collectedOct 21, 2026, 1:58 AM UTC

Catalog statusautomatic

Reported geometryPoint

Location qualityValidated coordinate format (not accuracy assurance)

Country assignmentUnited States

Coordinates (lon, lat)-143.5280, 61.8530

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": [
    -143.528,
    61.853,
    13.1
  ]
}

Revision observations

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

Collected2026-10-21T01:58:04.867Z· Provider update2026-10-21T01:56:32.567Z · Magnitude 1.5

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