USGS · EARTHQUAKE

M 1.5 · 6 km WNW of Cobb, CA

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

Source agencyUSGS

Provider event IDnc75452791

Magnitude1.5 md

Depth1.9 km

Occurred / latest reportedOct 21, 2026, 5:19 AM UTC

Provider last updatedOct 21, 2026, 5:52 AM UTC

TerraPulse collectedOct 21, 2026, 5:54 AM UTC

Catalog statusautomatic

Reported geometryPoint

Location qualityValidated coordinate format (not accuracy assurance)

Country assignmentUnited States

Coordinates (lon, lat)-122.7958, 38.8345

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": [
    -122.795829772949,
    38.8344993591309,
    1.91999995708466
  ]
}

Revision observations

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

Collected2026-10-21T05:54:04.498Z· Provider update2026-10-21T05:52:24.252Z · Magnitude 1.5

Collected2026-10-21T05:39:05.613Z· Provider update2026-10-21T05:37:23.150Z · Magnitude 1.5

Collected2026-10-21T05:22:05.010Z· Provider update2026-10-21T05:20:41.188Z · Magnitude 1.5

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