USGS · EARTHQUAKE

M 2.8 · 28 km WNW of Nanwalek, Alaska

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

Source agencyUSGS

Provider event IDaka2026uvldgm

Magnitude2.8 ml

Depth64.9 km

Occurred / latest reportedOct 21, 2026, 3:21 AM UTC

Provider last updatedOct 21, 2026, 3:35 AM UTC

TerraPulse collectedOct 21, 2026, 3:37 AM UTC

Catalog statusautomatic

Reported geometryPoint

Location qualityValidated coordinate format (not accuracy assurance)

Country assignmentOffshore, non-point or unassigned

Coordinates (lon, lat)-152.3350, 59.4960

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": [
    -152.335,
    59.496,
    64.9
  ]
}

Revision observations

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

Collected2026-10-21T03:37:05.403Z· Provider update2026-10-21T03:35:14.040Z · Magnitude 2.8

Collected2026-10-21T03:27:06.961Z· Provider update2026-10-21T03:25:42.679Z · Magnitude 2.8

Collected2026-10-21T03:26:05.999Z· Provider update2026-10-21T03:24:52.282Z · Magnitude 2.7

Collected2026-10-21T03:24:12.685Z· Provider update2026-10-21T03:23:58.497Z · Magnitude 2.7

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