USGS · EARTHQUAKE

M 4.2 · 153 km N of Agats, Indonesia

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

Source agencyUSGS

Provider event IDus7000tixu

Magnitude4.2 mb

Depth138.5 km

Occurred / latest reportedSep 21, 2026, 1:58 PM UTC

Provider last updatedOct 1, 2026, 6:45 PM UTC

TerraPulse collectedOct 21, 2026, 1:50 AM UTC

Catalog statusreviewed

Reported geometryPoint

Location qualityValidated coordinate format (not accuracy assurance)

Country assignmentIndonesia

Coordinates (lon, lat)137.9294, -4.1726

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": [
    137.9294,
    -4.1726,
    138.538
  ]
}

Revision observations

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

Collected2026-10-21T01:50:29.468Z· Provider update2026-10-01T18:45:43.040Z · Magnitude 4.2

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