M1.66 Earthquake – 10 km NE of Castle Rock, Washington
8 October 2026, 23:32 UTC · 1 hour ago · Data: USGS
A magnitude 1.66 earthquake struck 10 km NE of Castle Rock, Washington on 8 October 2026, 23:32 UTC, at a depth of 6.7 km. This was a micro earthquake rarely felt by people.
- Magnitude
- 1.66 (ml)
- Location
- 10 km NE of Castle Rock, Washington
- Date & time
- 8 October 2026, 23:32 UTC
- Coordinates
- 46.3443, -122.8240
- Depth
- 6.70 km
- Region
- Worldwide
- Source
- USGS event page
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