USGS · EARTHQUAKE

M 1.8 · 21 km SW of Ivanof Bay, Alaska

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

Source agencyUSGS

Provider event IDaka2026utkhip

Magnitude1.8 ml

Depth5.0 km

Occurred / latest reportedOct 20, 2026, 12:56 AM UTC

Provider last updatedOct 20, 2026, 12:57 AM UTC

TerraPulse collectedOct 21, 2026, 1:50 AM UTC

Catalog statusautomatic

Reported geometryPoint

Location qualityValidated coordinate format (not accuracy assurance)

Country assignmentOffshore, non-point or unassigned

Coordinates (lon, lat)-159.7560, 55.7840

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": [
    -159.756,
    55.784,
    5
  ]
}

Revision observations

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

Collected2026-10-21T01:50:15.594Z· Provider update2026-10-20T00:57:44.795Z · Magnitude 1.8

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