INGV, USGS and EMSC data, with the source next to every number.Sources and limits
0.4

Earthquake M 0.4 in the area of Quilcene, Washington, 20 October 2026, 12:09 UTC

Recorded 7 d ago. Updated 14:08.

Magnitude
md 0.4
Time (UTC)
12:09:45
Depth
21 km
Coordinates
47.793 N 122.884 W
Source
USGS
Last revision
14:08

Map: OpenStreetMap contributors data, OpenMapTiles tiles.

What it means

Summary from the source data

An earthquake of magnitude 0.4 was recorded at a depth of 21 km, near Quilcene, on 20/10 at 12:09 UTC. The data is preliminary and may be updated.

Within 50 km of the epicentre, 5 events were recorded in the last 24 hours (maximum magnitude 2.3). Within 50 km of the epicentre, 9 events were recorded in the last 30 days (maximum magnitude 2.3). In the same area, a stronger quake occurred in the last 30 days (magnitude 2.3). The hypocentre is shallow, at a depth of 21 km.

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

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