Washington earthquakes

M1.6 earthquake 38 km NNE of Amboy, Washington

A magnitude 1.6 earthquake struck 38 km NNE of Amboy, Washington on Fri, Oct 19, 1984, 3:05 AM PDT (10:05 UTC), -2 km (-1 mi) below the surface.

A larger quake followed: M2.0 15 km SSW of Clatskanie, Oregon. 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
1.6 (md), micro
Local time
UTC
1984-10-19 10:05:29 UTC
Depth
-1.6 km (-1.0 mi), shallow
Epicenter
46.207° N, 122.187° 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 0.1 km horizontally, 2.3 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
113°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.537 km SSE of Morton, Washington · 15313 days ago · 9 km deep · 6 km away
  2. 2.015 km SSW of Clatskanie, Oregon · 15312 days ago · 54 km deep · 90 km away
  3. 1.538 km NNE of Amboy, Washington · 15311 days ago · -2 km deep · 0 km away
  4. 1.937 km S of Morton, Washington · 15303 days ago · 0 km deep · 2 km away
  5. 1.625 km ENE of Yacolt, Washington · 15300 days ago · 6 km deep · 26 km away
  6. 2.237 km S of Morton, Washington · 15300 days ago · 0 km deep · 2 km away
  7. 1.922 km S of Morton, Washington · 15299 days ago · 10 km deep · 18 km away
  8. 1.520 km NE of Ashford, Washington · 15296 days ago · 6 km deep · 82 km away
  9. 1.838 km NNE of Amboy, Washington · 15295 days ago · -2 km deep · 0 km away
  10. 1.610 km ENE of Ashford, Washington · 15291 days ago · 11 km deep · 69 km away
  11. 1.738 km NNE of Amboy, Washington · 15287 days ago · -2 km deep · 0 km away
  12. 3.124 km NE of Ashford, Washington · 15285 days ago · 0 km deep · 84 km away
  13. 1.55 km ESE of Mossyrock, Washington · 15284 days ago · 20 km deep · 39 km away
  14. 1.738 km NNE of Amboy, Washington · 15283 days ago · -2 km deep · 0 km away
  15. 2.438 km NNE of Amboy, Washington · 15283 days ago · -2 km deep · 0 km away
  16. 1.815 km NNE of Ashford, Washington · 15272 days ago · 7 km deep · 78 km away
  17. 1.76 km SSW of Morton, Washington · 15267 days ago · 19 km deep · 35 km away
  18. 2.51 km SSE of Beaverton, Oregon · 15261 days ago · 25 km deep · 94 km away
  19. 1.91 km NNE of Crocker, Washington · 15255 days ago · 7 km deep · 99 km away
  20. 1.738 km S of Morton, Washington · 15254 days ago · -1 km deep · 1 km away

Before

  1. 1.541 km SSE of Morton, Washington · 15314 days ago · 9 km deep · 16 km away
  2. 2.06 km E of Ashford, Washington · 15316 days ago · 5 km deep · 63 km away
  3. 1.738 km NNE of Amboy, Washington · 15317 days ago · -2 km deep · 0 km away
  4. 1.529 km S of Mossyrock, Washington · 15317 days ago · 15 km deep · 22 km away
  5. 2.138 km NNE of Amboy, Washington · 15322 days ago · -2 km deep · 0 km away
  6. 1.95 km ESE of Packwood, Washington · 15326 days ago · 2 km deep · 63 km away
  7. 1.525 km S of Morton, Washington · 15326 days ago · 8 km deep · 14 km away
  8. 2.338 km NNE of Amboy, Washington · 15330 days ago · -2 km deep · 0 km away
  9. 1.837 km NNE of Amboy, Washington · 15331 days ago · 1 km deep · 1 km away
  10. 2.037 km NNE of Amboy, Washington · 15341 days ago · -1 km deep · 1 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10183318. Read Tue, Sep 22, 2026, 10:30 PM UTC.