INGV, USGS and EMSC data, with the source next to every number.Sources and limits
1.9

Earthquake M 1.9 in the area of Petrolia, CA, 29 October 2026, 20:43 UTC

Recorded 2 h ago. Updated 00:05.

Magnitude
md 1.9
Time (UTC)
20:43:40
Depth
5 km
Coordinates
40.280 N 124.654 W
Source
USGS
Last revision
00:05

Map: OpenStreetMap contributors data, OpenMapTiles tiles.

What it means

Summary from the source data

An earthquake of magnitude 1.9 was recorded at a depth of 5 km, near Petrolia, on 29/10 at 20:43 UTC. The data is preliminary and may be updated.

Within 50 km of the epicentre, 27 events were recorded in the last 30 days (maximum magnitude 3.4). In the same area, a stronger quake occurred in the last 30 days (magnitude 3.4). The hypocentre is shallow, at a depth of 5 km.

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

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