Washington earthquakes

M1.8 earthquake 38 km NNE of Amboy, Washington

A magnitude 1.8 earthquake struck 38 km NNE of Amboy, Washington on Sat, May 26, 1990, 10:50 AM PDT (17:50 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.4 33 km NE of Amboy, 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
1990-05-26 17:50:03 UTC
Depth
-1.2 km (-0.8 mi), shallow
Epicenter
46.203° N, 122.189° 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
±0.08
Depth from
From location
Station coverage gap
153°
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 1.737 km NNE of Amboy, Washington · 13277 days ago · -2 km deep · 0 km away
  2. 1.838 km NNE of Amboy, Washington · 13277 days ago · -2 km deep · 1 km away
  3. 1.738 km NNE of Amboy, Washington · 13276 days ago · -2 km deep · 0 km away
  4. 1.738 km NNE of Amboy, Washington · 13276 days ago · -1 km deep · 0 km away
  5. 2.023 km ENE of Ashford, Washington · 13275 days ago · -1 km deep · 80 km away
  6. 1.74 km E of Carson, Washington · 13274 days ago · 4 km deep · 62 km away
  7. 1.94 km E of Carson, Washington · 13274 days ago · 4 km deep · 62 km away
  8. 2.0Washington · 13273 days ago · 0 km deep · 1 km away
  9. 1.526 km S of Morton, Washington · 13268 days ago · 8 km deep · 14 km away
  10. 1.528 km ENE of Ashford, Washington · 13267 days ago · -2 km deep · 85 km away
  11. 1.737 km NNE of Amboy, Washington · 13262 days ago · -1 km deep · 0 km away
  12. 1.737 km NNE of Amboy, Washington · 13259 days ago · 2 km deep · 0 km away
  13. 1.937 km NNE of Amboy, Washington · 13250 days ago · 5 km deep · 1 km away
  14. 1.810 km SW of Packwood, Washington · 13250 days ago · 8 km deep · 49 km away
  15. 1.525 km ENE of Ashford, Washington · 13249 days ago · 0 km deep · 81 km away
  16. 2.338 km NNE of Amboy, Washington · 13248 days ago · 4 km deep · 0 km away
  17. 2.433 km NE of Amboy, Washington · 13246 days ago · 0 km deep · 7 km away
  18. 1.738 km NNE of Amboy, Washington · 13239 days ago · -2 km deep · 1 km away
  19. 1.938 km NNE of Amboy, Washington · 13229 days ago · 0 km deep · 1 km away
  20. 1.522 km ENE of Ashford, Washington · 13228 days ago · -2 km deep · 79 km away
  21. 1.738 km NNE of Amboy, Washington · 13228 days ago · 0 km deep · 0 km away
  22. 1.827 km SSE of Greenwater, Washington · 13222 days ago · 3 km deep · 93 km away
  23. 1.627 km SSE of Greenwater, Washington · 13222 days ago · 3 km deep · 93 km away

Before

  1. 1.92 km ESE of Alder, Washington · 13282 days ago · 17 km deep · 66 km away
  2. 1.823 km S of Morton, Washington · 13282 days ago · 11 km deep · 16 km away
  3. 2.623 km ENE of Ashford, Washington · 13283 days ago · -2 km deep · 80 km away
  4. 2.224 km S of Morton, Washington · 13287 days ago · 3 km deep · 16 km away
  5. 1.514 km NE of Ashford, Washington · 13289 days ago · 7 km deep · 74 km away
  6. 2.913 km SSW of Morton, Washington · 13289 days ago · 18 km deep · 29 km away
  7. 1.538 km NNE of Amboy, Washington · 13294 days ago · -2 km deep · 1 km away
  8. 1.727 km ENE of Ashford, Washington · 13303 days ago · -2 km deep · 84 km away
  9. 2.337 km NNE of Amboy, Washington · 13303 days ago · 3 km deep · 1 km away
  10. 2.237 km NNE of Amboy, Washington · 13303 days ago · 3 km deep · 0 km away
  11. 2.138 km NNE of Amboy, Washington · 13306 days ago · 2 km deep · 0 km away
  12. 1.538 km NNE of Amboy, Washington · 13309 days ago · -2 km deep · 0 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10262393. Read Mon, Oct 5, 2026, 11:02 AM UTC.