Earthquake M 0.5 in the area of Castle Rock, Washington, 22 October 2026, 06:56 UTC

Recorded 6 d ago. Updated 08:56.

Magnitude: ml 0.5
Time (UTC): 06:56:13
Depth: 18 km
Coordinates: 46.237 N 122.647 W
Source: USGS
Last revision: 08:56

Map: OpenStreetMap contributors data, OpenMapTiles tiles.

What it means

Summary from the source data

An earthquake of magnitude 0.5 was recorded at a depth of 18 km, near Castle Rock, on 22/10 at 06:56 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 3.0). Within 50 km of the epicentre, 6 events were recorded in the last 30 days (maximum magnitude 3.0). In the same area, a stronger quake occurred in the last 30 days (magnitude 3.0). The hypocentre is shallow, at a depth of 18 km.

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

Other nearby and recent quakes

0.3 Castle Rock, Washington, 2 kmDepth 17 kmOct 27 08:55 UTC 0.6 Castle Rock, Washington, 1 kmDepth 18 kmOct 27 08:54 UTC 1.4 Amboy, Washington, 35 kmDepth 7 kmOct 24 20:34 UTC 1.3 Amboy, Washington, 35 kmDepth 7 kmOct 24 20:33 UTC 1.3 Amboy, Washington, 36 kmDepth 6 kmOct 24 19:25 UTC 1.2 Amboy, Washington, 36 kmDepth 3 kmOct 24 19:25 UTC

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