Observed earthquake
22 km ESE of Castle Rock, Washington
Recent observationReported by 1 agency. Every solution below is that agency's own measurement, stored unaltered.
Magnitude
0.3md
Depth
17 km
shallow
Origin time
2026-10-27 08:55:38 UTC
12 h ago
Epicentre
46.23°N, 122.63°W
Agency solutions
The same earthquake as measured independently by each agency. Values are never averaged or rewritten.
| Agency | Magnitude | Depth | Origin time | Epicentre | Review status | Source record |
|---|---|---|---|---|---|---|
| USGSUnited States Geological Survey | M0.3 md | 17 km | 2026-10-27 08:55:38 UTC | 46.23°N, 122.63°W | Reviewed by an analyst7 stations | uw714005313 ↗ |
Source: Earthquake data courtesy of the U.S. Geological Survey. · Retrieved: 2026-10-27 18:28:04 UTC