INGV, USGS and EMSC data, with the source next to every number.Sources and limits
1.4

Earthquake M 1.4 in the area of Rancho San Diego, CA, 20 October 2026, 21:30 UTC

Recorded 7 d ago. Updated 23:34.

Magnitude
ml 1.4
Time (UTC)
21:30:15
Depth
4 km
Coordinates
32.764 N 116.899 W
Source
USGS
Last revision
23:34

Map: OpenStreetMap contributors data, OpenMapTiles tiles.

What it means

Summary from the source data

An earthquake of magnitude 1.4 was recorded at a depth of 4 km, near Rancho San Diego, on 20/10 at 21:30 UTC. The data is preliminary and may be updated.

Within 50 km of the epicentre, 4 events were recorded in the last 24 hours (maximum magnitude 1.4). Within 50 km of the epicentre, 4 events were recorded in the last 30 days (maximum magnitude 1.4). It is the strongest quake in the area in the last 30 days. The hypocentre is shallow, at a depth of 4 km.

Quakes of this size are very frequent and are usually not felt by people.

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