Washington earthquakes

M1.8 earthquake 37 km NNE of Amboy, Washington

A magnitude 1.8 earthquake struck 37 km NNE of Amboy, Washington on Sun, Nov 25, 1990, 12:46 PM PST (20:46 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M2.3 25 km ENE of Ashford, Washington. This one was a foreshock.

Amboy 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
1990-11-25 20:46:38 UTC
Depth
-0.3 km (-0.2 mi), shallow
Epicenter
46.203° N, 122.200° 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 0.5 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
48°
Stations used
31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.638 km NNE of Amboy, Washington · 13093 days ago · 0 km deep · 1 km away
  2. 1.84 km SSE of Mossyrock, Washington · 13086 days ago · 19 km deep · 38 km away
  3. 1.925 km ENE of Ashford, Washington · 13080 days ago · -2 km deep · 83 km away
  4. 1.64 km SSW of Orting, Washington · 13077 days ago · 1 km deep · 95 km away
  5. 2.325 km ENE of Ashford, Washington · 13073 days ago · -2 km deep · 81 km away
  6. 1.637 km NNE of Amboy, Washington · 13071 days ago · -1 km deep · 1 km away
  7. 2.136 km NNE of Amboy, Washington · 13071 days ago · 1 km deep · 1 km away
  8. 1.638 km NNE of Amboy, Washington · 13071 days ago · 0 km deep · 1 km away
  9. 1.738 km NNE of Amboy, Washington · 13071 days ago · 0 km deep · 1 km away
  10. 1.638 km NNE of Amboy, Washington · 13071 days ago · -1 km deep · 1 km away
  11. 1.538 km NNE of Amboy, Washington · 13071 days ago · 0 km deep · 1 km away
  12. 2.18 km N of Bethany, Oregon · 13064 days ago · 17 km deep · 81 km away
  13. 1.720 km S of Packwood, Washington · 13060 days ago · -1 km deep · 51 km away
  14. 1.538 km NNE of Amboy, Washington · 13059 days ago · 2 km deep · 1 km away
  15. 1.84 km SSE of Walnut Grove, Washington · 13058 days ago · 17 km deep · 70 km away
  16. 1.938 km NNE of Amboy, Washington · 13056 days ago · 2 km deep · 1 km away
  17. 1.738 km NNE of Amboy, Washington · 13051 days ago · -1 km deep · 1 km away
  18. 1.56 km SW of Packwood, Washington · 13040 days ago · 4 km deep · 54 km away
  19. 1.715 km S of Morton, Washington · 13039 days ago · 7 km deep · 24 km away

Before

  1. 2.38 km NW of Longview Heights, Washington · 13099 days ago · 23 km deep · 63 km away
  2. 1.838 km NNE of Amboy, Washington · 13107 days ago · -2 km deep · 1 km away
  3. 1.723 km ENE of Ashford, Washington · 13108 days ago · -2 km deep · 81 km away
  4. 1.55 km SW of Pe Ell, Washington · 13109 days ago · 25 km deep · 95 km away
  5. 1.621 km E of Kelso, Washington · 13111 days ago · 13 km deep · 34 km away
  6. 1.923 km S of Morton, Washington · 13112 days ago · 7 km deep · 17 km away
  7. 2.036 km S of Morton, Washington · 13116 days ago · 0 km deep · 4 km away
  8. 1.926 km ENE of Ashford, Washington · 13120 days ago · -2 km deep · 84 km away
  9. 1.615 km ESE of Kapowsin, Washington · 13123 days ago · 6 km deep · 80 km away
  10. 2.315 km ESE of Kapowsin, Washington · 13123 days ago · 6 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10268513. Read Sun, Oct 4, 2026, 6:19 AM UTC.