Observed earthquake
20 km E of Castle Rock, Washington
Recent observationReported by 1 agency. Every solution below is that agency's own measurement, stored unaltered.
Magnitude
1.7ml
Depth
17 km
shallow
Origin time
2026-10-07 20:15:59 UTC
29 d ago
Epicentre
46.24°N, 122.65°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 | M1.6 ml | 17 km | 2026-10-07 20:15:59 UTC | 46.25°N, 122.64°W | Reviewed by an analyst32 stations | uw714117561 ↗ |
Source: Earthquake data courtesy of the U.S. Geological Survey. · Retrieved: 2026-10-07 20:20:55 UTC