USGS · EARTHQUAKE

M 5.6 · 43 km NNW of Lake Minchumina, Alaska

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

Source agencyUSGS

Provider event IDaka2026ukynnb

Magnitude5.6 ml

Depth4.5 km

Occurred / latest reportedOct 15, 2026, 11:07 AM UTC

Provider last updatedOct 20, 2026, 3:23 PM UTC

TerraPulse collectedOct 21, 2026, 1:50 AM UTC

Catalog statusreviewed

Reported geometryPoint

Location qualityValidated coordinate format (not accuracy assurance)

Country assignmentUnited States

Coordinates (lon, lat)-152.7460, 64.2200

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": [
    -152.746,
    64.22,
    4.5
  ]
}

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 update2026-10-20T15:23:27.839Z · Magnitude 5.6

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