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, Aug 7, 1982, 6:35 PM PDT (01:35 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M1.9 4 km SSW of Orting, 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), micro
Local time
UTC
1982-08-08 01:35:01 UTC
Depth
-0.2 km (-0.1 mi), shallow
Epicenter
46.208° N, 122.190° 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 0.7 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
62°
Stations used
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 28 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 1.638 km NNE of Amboy, Washington · 16109 days ago · 0 km deep · 1 km away
  2. 1.838 km NNE of Amboy, Washington · 16108 days ago · 0 km deep · 0 km away
  3. 1.94 km SSW of Orting, Washington · 16108 days ago · -1 km deep · 95 km away
  4. 1.942 km WNW of Trout Lake, Washington · 16108 days ago · 0 km deep · 14 km away
  5. 2.538 km NNE of Amboy, Washington · 16107 days ago · 0 km deep · 1 km away
  6. 1.538 km NNE of Amboy, Washington · 16107 days ago · 0 km deep · 1 km away
  7. 2.037 km NNE of Amboy, Washington · 16107 days ago · -1 km deep · 1 km away
  8. 1.638 km NNE of Amboy, Washington · 16107 days ago · -1 km deep · 1 km away
  9. 2.537 km NNE of Amboy, Washington · 16107 days ago · 0 km deep · 1 km away
  10. 2.837 km NNE of Amboy, Washington · 16106 days ago · 0 km deep · 1 km away
  11. 1.913 km SE of Mossyrock, Washington · 16106 days ago · 10 km deep · 29 km away
  12. 2.137 km NNE of Amboy, Washington · 16106 days ago · 1 km deep · 1 km away
  13. 1.737 km NNE of Amboy, Washington · 16106 days ago · 0 km deep · 2 km away
  14. 2.322 km S of Morton, Washington · 16105 days ago · 8 km deep · 17 km away
  15. 1.525 km S of Morton, Washington · 16100 days ago · 8 km deep · 14 km away
  16. 2.423 km ESE of Packwood, Washington · 16096 days ago · 0 km deep · 71 km away
  17. 1.916 km NNE of Ashford, Washington · 16095 days ago · 8 km deep · 78 km away
  18. 1.723 km ESE of Packwood, Washington · 16095 days ago · 2 km deep · 71 km away
  19. 1.837 km SSE of Morton, Washington · 16091 days ago · 9 km deep · 7 km away
  20. 1.613 km NE of Ashford, Washington · 16090 days ago · 9 km deep · 74 km away
  21. 1.622 km S of Morton, Washington · 16089 days ago · 4 km deep · 17 km away
  22. 2.222 km ESE of Packwood, Washington · 16088 days ago · 0 km deep · 72 km away
  23. 1.612 km NE of Ashford, Washington · 16080 days ago · 9 km deep · 74 km away
  24. 1.83 km NNE of Packwood, Washington · 16076 days ago · 4 km deep · 63 km away
  25. 1.936 km NNE of Amboy, Washington · 16076 days ago · -1 km deep · 2 km away
  26. 1.823 km S of Morton, Washington · 16073 days ago · 9 km deep · 16 km away
  27. 1.83 km S of Parkdale, Oregon · 16071 days ago · -1 km deep · 93 km away
  28. 1.517 km NW of Packwood, Washington · 16070 days ago · -1 km deep · 65 km away

Before

  1. 1.94 km WSW of Packwood, Washington · 16121 days ago · 12 km deep · 56 km away
  2. 1.88 km E of Ashford, Washington · 16123 days ago · -1 km deep · 64 km away
  3. 2.31 km SSE of Ashford, Washington · 16124 days ago · 7 km deep · 61 km away
  4. 1.625 km S of Morton, Washington · 16127 days ago · 8 km deep · 14 km away
  5. 1.633 km NE of Amboy, Washington · 16129 days ago · 1 km deep · 7 km away
  6. 1.624 km S of Morton, Washington · 16131 days ago · 5 km deep · 15 km away
  7. 2.923 km ESE of Packwood, Washington · 16137 days ago · 6 km deep · 71 km away
  8. 1.537 km S of Morton, Washington · 16139 days ago · -1 km deep · 2 km away
  9. 1.710 km S of Parkdale, Oregon · 16141 days ago · 3 km deep · 99 km away
  10. 1.924 km ESE of Packwood, Washington · 16144 days ago · -1 km deep · 71 km away
  11. 1.724 km S of Greenwater, Washington · 16144 days ago · 8 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10137113. Read Tue, Sep 22, 2026, 3:45 PM UTC.