USGS · EARTHQUAKE

M 5.4 · 33 km ESE of Ambunti, Papua New Guinea

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

Source agencyUSGS

Provider event IDus6000u4tq

Magnitude5.4 mww

Depth72.3 km

Occurred / latest reportedOct 25, 2026, 10:30 AM UTC

Provider last updatedOct 25, 2026, 12:36 PM UTC

TerraPulse collectedOct 25, 2026, 12:38 PM UTC

Catalog statusreviewed

Reported geometryPoint

Location qualityValidated coordinate format (not accuracy assurance)

Country assignmentPapua New Guinea

Coordinates (lon, lat)143.0843, -4.3644

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": [
    143.0843,
    -4.3644,
    72.349
  ]
}

Revision observations

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

Collected2026-10-25T12:38:03.262Z· Provider update2026-10-25T12:36:03.332Z · Magnitude 5.4

Collected2026-10-25T12:35:04.745Z· Provider update2026-10-25T12:33:55.634Z · Magnitude 5.4

Collected2026-10-25T10:54:09.959Z· Provider update2026-10-25T10:52:50.272Z · Magnitude 5.4

Collected2026-10-25T10:53:05.201Z· Provider update2026-10-25T10:50:56.658Z · Magnitude 5.4

Collected2026-10-25T10:49:04.857Z· Provider update2026-10-25T10:47:04.040Z · Magnitude 5.4

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