Washington earthquakes

M1.8 earthquake 38 km NNE of Amboy, Washington

A magnitude 1.8 earthquake struck 38 km NNE of Amboy, Washington on Wed, Nov 14, 1990, 11:44 PM PST (07:44 UTC), -2 km (-1 mi) below the surface.

A larger quake followed: M2.3 8 km NW of Longview Heights, 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
1990-11-15 07:44:20 UTC
Depth
-1.6 km (-1.0 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 0.2 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.09
Depth from
Operator assigned
Station coverage gap
60°
Stations used
12

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 11 in the 30 days before it.

After

  1. 2.38 km NW of Longview Heights, Washington · 13097 days ago · 23 km deep · 64 km away
  2. 1.837 km NNE of Amboy, Washington · 13094 days ago · 0 km deep · 1 km away
  3. 1.638 km NNE of Amboy, Washington · 13091 days ago · 0 km deep · 0 km away
  4. 1.84 km SSE of Mossyrock, Washington · 13084 days ago · 19 km deep · 38 km away
  5. 1.925 km ENE of Ashford, Washington · 13078 days ago · -2 km deep · 83 km away
  6. 1.64 km SSW of Orting, Washington · 13075 days ago · 1 km deep · 95 km away
  7. 2.325 km ENE of Ashford, Washington · 13071 days ago · -2 km deep · 81 km away
  8. 1.637 km NNE of Amboy, Washington · 13069 days ago · -1 km deep · 0 km away
  9. 2.136 km NNE of Amboy, Washington · 13069 days ago · 1 km deep · 1 km away
  10. 1.638 km NNE of Amboy, Washington · 13069 days ago · 0 km deep · 0 km away
  11. 1.738 km NNE of Amboy, Washington · 13069 days ago · 0 km deep · 0 km away
  12. 1.638 km NNE of Amboy, Washington · 13069 days ago · -1 km deep · 0 km away
  13. 1.538 km NNE of Amboy, Washington · 13068 days ago · 0 km deep · 0 km away
  14. 2.18 km N of Bethany, Oregon · 13062 days ago · 17 km deep · 82 km away
  15. 1.720 km S of Packwood, Washington · 13058 days ago · -1 km deep · 50 km away
  16. 1.538 km NNE of Amboy, Washington · 13057 days ago · 2 km deep · 0 km away
  17. 1.84 km SSE of Walnut Grove, Washington · 13056 days ago · 17 km deep · 71 km away
  18. 1.938 km NNE of Amboy, Washington · 13054 days ago · 2 km deep · 0 km away
  19. 1.738 km NNE of Amboy, Washington · 13048 days ago · -1 km deep · 0 km away

Before

  1. 1.723 km ENE of Ashford, Washington · 13106 days ago · -2 km deep · 80 km away
  2. 1.55 km SW of Pe Ell, Washington · 13107 days ago · 25 km deep · 96 km away
  3. 1.621 km E of Kelso, Washington · 13109 days ago · 13 km deep · 35 km away
  4. 1.923 km S of Morton, Washington · 13110 days ago · 7 km deep · 17 km away
  5. 2.036 km S of Morton, Washington · 13114 days ago · 0 km deep · 4 km away
  6. 1.926 km ENE of Ashford, Washington · 13118 days ago · -2 km deep · 84 km away
  7. 1.615 km ESE of Kapowsin, Washington · 13121 days ago · 6 km deep · 80 km away
  8. 2.315 km ESE of Kapowsin, Washington · 13121 days ago · 6 km deep · 80 km away
  9. 1.738 km NNE of Amboy, Washington · 13125 days ago · -2 km deep · 1 km away
  10. 1.736 km NNE of Amboy, Washington · 13125 days ago · -2 km deep · 2 km away
  11. 1.724 km SE of Carbonado, Washington · 13125 days ago · -1 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10267698. Read Fri, Oct 2, 2026, 1:47 AM UTC.