USGS · EARTHQUAKE

M 0.8 · 29 km ESE of West Yellowstone, Montana

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

Source agencyUSGS

Provider event IDuu80160841

Magnitude0.8 ml

Depth8.0 km

Occurred / latest reportedOct 19, 2026, 3:09 AM UTC

Provider last updatedOct 19, 2026, 2:27 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)-110.7465, 44.5755

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": [
    -110.7465,
    44.5755,
    7.99
  ]
}

Revision observations

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

Collected2026-10-21T01:50:16.071Z· Provider update2026-10-19T14:27:39.830Z · Magnitude 0.85

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