USGS · EARTHQUAKE

M 0.8 · 6 km NW of The Geysers, CA

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

Source agencyUSGS

Provider event IDnc75452756

Magnitude0.8 md

Depth3.3 km

Occurred / latest reportedOct 21, 2026, 2:47 AM UTC

Provider last updatedOct 21, 2026, 2:48 AM UTC

TerraPulse collectedOct 21, 2026, 2:50 AM UTC

Catalog statusautomatic

Reported geometryPoint

Location qualityValidated coordinate format (not accuracy assurance)

Country assignmentUnited States

Coordinates (lon, lat)-122.8027, 38.8200

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": [
    -122.802665710449,
    38.8199996948242,
    3.25
  ]
}

Revision observations

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

Collected2026-10-21T02:50:04.235Z· Provider update2026-10-21T02:48:49.726Z · Magnitude 0.78

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