Washington earthquakes

M1.8 earthquake 22 km NNW of Carson, Washington

A magnitude 1.8 earthquake struck 22 km NNW of Carson, Washington on Mon, Jan 28, 1991, 6:15 AM PST (14:15 UTC), 6 km (3 mi) below the surface.

A larger quake followed: M3.1 5 km ESE of Ridgefield, Washington. This one was a foreshock.

Carson forecastMore in Washington

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1991-01-28 14:15:29 UTC
Depth
5.6 km (3.5 mi), shallow
Epicenter
45.895° N, 121.979° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.4 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
38°
Stations used
35

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 25 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 1.511 km ESE of Yacolt, Washington · 13025 days ago · 8 km deep · 24 km away
  2. 1.637 km NNE of Amboy, Washington · 13024 days ago · -1 km deep · 38 km away
  3. 1.85 km SSW of Aloha, Oregon · 13022 days ago · 37 km deep · 86 km away
  4. 1.939 km S of Morton, Washington · 13022 days ago · 1 km deep · 39 km away
  5. 1.737 km NNE of Amboy, Washington · 13021 days ago · -1 km deep · 37 km away
  6. 1.67 km ENE of Government Camp, Oregon · 13015 days ago · 4 km deep · 66 km away
  7. 1.537 km NE of Amboy, Washington · 13014 days ago · -2 km deep · 36 km away
  8. 1.836 km NNE of Amboy, Washington · 13013 days ago · 0 km deep · 37 km away
  9. 1.538 km NNE of Amboy, Washington · 13005 days ago · 0 km deep · 38 km away
  10. 2.610 km SSE of Mineral, Washington · 13004 days ago · 14 km deep · 82 km away
  11. 2.23 km N of North Portland, Oregon · 13004 days ago · 14 km deep · 63 km away
  12. 1.71 km NNE of Mill Plain, Washington · 13003 days ago · 11 km deep · 48 km away
  13. 1.810 km ENE of Ashford, Washington · 12997 days ago · -1 km deep · 99 km away
  14. 3.15 km ESE of Ridgefield, Washington · 12995 days ago · 19 km deep · 56 km away
  15. 1.75 km ESE of Ridgefield, Washington · 12986 days ago · 19 km deep · 56 km away
  16. 1.525 km S of Morton, Washington · 12984 days ago · 8 km deep · 52 km away
  17. 2.410 km SSE of Mineral, Washington · 12981 days ago · 15 km deep · 82 km away
  18. 1.97 km ESE of Venersborg, Washington · 12980 days ago · 4 km deep · 32 km away
  19. 1.816 km S of Morton, Washington · 12980 days ago · 10 km deep · 62 km away
  20. 1.55 km NE of Estacada, Oregon · 12978 days ago · 16 km deep · 68 km away
  21. 2.138 km NNE of Amboy, Washington · 12977 days ago · 1 km deep · 38 km away
  22. 1.835 km NNE of Amboy, Washington · 12977 days ago · -1 km deep · 37 km away
  23. 2.438 km NNE of Amboy, Washington · 12977 days ago · -1 km deep · 38 km away
  24. 1.636 km NNE of Amboy, Washington · 12977 days ago · -1 km deep · 37 km away
  25. 1.719 km S of Morton, Washington · 12975 days ago · 6 km deep · 60 km away

Before

  1. 1.715 km S of Morton, Washington · 13037 days ago · 7 km deep · 62 km away
  2. 1.56 km SW of Packwood, Washington · 13037 days ago · 4 km deep · 77 km away
  3. 1.738 km NNE of Amboy, Washington · 13048 days ago · -1 km deep · 38 km away
  4. 1.938 km NNE of Amboy, Washington · 13054 days ago · 2 km deep · 38 km away
  5. 1.84 km SSE of Walnut Grove, Washington · 13056 days ago · 17 km deep · 56 km away
  6. 1.538 km NNE of Amboy, Washington · 13057 days ago · 2 km deep · 38 km away
  7. 1.720 km S of Packwood, Washington · 13058 days ago · -1 km deep · 65 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10272053. Read Thu, Oct 1, 2026, 9:13 PM UTC.