USGS · EARTHQUAKE

M 5.3 · Bonin Islands, Japan region

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

Source agencyUSGS

Provider event IDus6000u4we

Magnitude5.3 mww

Depth485.1 km

Occurred / latest reportedOct 25, 2026, 10:14 PM UTC

Provider last updatedOct 25, 2026, 10:28 PM UTC

TerraPulse collectedOct 25, 2026, 10:30 PM UTC

Catalog statusreviewed

Reported geometryPoint

Location qualityValidated coordinate format (not accuracy assurance)

Country assignmentOffshore, non-point or unassigned

Coordinates (lon, lat)139.6752, 27.8376

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": [
    139.6752,
    27.8376,
    485.13
  ]
}

Revision observations

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

Collected2026-10-25T22:30:05.613Z· Provider update2026-10-25T22:28:45.040Z · Magnitude 5.3

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