USGS · EARTHQUAKE

M 1.2 · 3 km SW of Anderson Springs, CA

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

Source agencyUSGS

Provider event IDnc75452786

Magnitude1.2 md

Depth2.0 km

Occurred / latest reportedOct 21, 2026, 4:28 AM UTC

Provider last updatedOct 21, 2026, 4:52 AM UTC

TerraPulse collectedOct 21, 2026, 4:53 AM UTC

Catalog statusautomatic

Reported geometryPoint

Location qualityValidated coordinate format (not accuracy assurance)

Country assignmentUnited States

Coordinates (lon, lat)-122.7190, 38.7560

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": [
    -122.71900177002,
    38.7560005187988,
    2.00999999046326
  ]
}

Revision observations

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

Collected2026-10-21T04:53:04.743Z· Provider update2026-10-21T04:52:23.836Z · Magnitude 1.18

Collected2026-10-21T04:31:08.133Z· Provider update2026-10-21T04:30:36.671Z · Magnitude 1.18

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