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, Aug 3, 1983, 8:17 PM PDT (03:17 UTC), -2 km (-1 mi) below the surface.

A larger quake followed: M2.2 38 km NNE 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.

Open the live map with earthquakes

The earthquake

Magnitude
1.8 (md), micro
Local time
UTC
1983-08-04 03:17:33 UTC
Depth
-1.6 km (-1.0 mi), shallow
Epicenter
46.208° N, 122.188° 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, 1.1 km in depth
Magnitude uncertainty
±0.08
Depth from
Operator assigned
Station coverage gap
86°
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 1.539 km S of Morton, Washington · 15743 days ago · -2 km deep · 1 km away
  2. 2.238 km NNE of Amboy, Washington · 15733 days ago · -1 km deep · 0 km away
  3. 1.615 km NNE of Packwood, Washington · 15733 days ago · 2 km deep · 75 km away
  4. 1.920 km ENE of Ashford, Washington · 15732 days ago · 0 km deep · 76 km away
  5. 2.227 km S of Greenwater, Washington · 15724 days ago · -1 km deep · 86 km away
  6. 2.238 km S of Morton, Washington · 15717 days ago · -1 km deep · 1 km away
  7. 1.823 km ESE of Packwood, Washington · 15716 days ago · -1 km deep · 71 km away
  8. 2.211 km ESE of Carbonado, Washington · 15714 days ago · 18 km deep · 95 km away
  9. 2.310 km SE of Mossyrock, Washington · 15713 days ago · 14 km deep · 33 km away
  10. 1.638 km NNE of Amboy, Washington · 15709 days ago · -1 km deep · 1 km away
  11. 2.025 km SSE of Packwood, Washington · 15704 days ago · -1 km deep · 56 km away
  12. 2.125 km SSE of Packwood, Washington · 15702 days ago · 0 km deep · 56 km away
  13. 1.625 km SSE of Packwood, Washington · 15701 days ago · 0 km deep · 56 km away
  14. 1.638 km NNE of Amboy, Washington · 15697 days ago · -1 km deep · 1 km away
  15. 2.219 km S of Morton, Washington · 15696 days ago · 8 km deep · 20 km away

Before

  1. 2.212 km S of Pe Ell, Washington · 15756 days ago · -1 km deep · 89 km away
  2. 2.13 km NNE of Packwood, Washington · 15759 days ago · 4 km deep · 62 km away
  3. 2.38 km ENE of Kalama, Washington · 15762 days ago · 15 km deep · 47 km away
  4. 2.48 km ENE of Kalama, Washington · 15762 days ago · 15 km deep · 47 km away
  5. 2.19 km ENE of Kalama, Washington · 15762 days ago · 15 km deep · 46 km away
  6. 2.210 km N of Mossyrock, Washington · 15764 days ago · 17 km deep · 52 km away
  7. 1.838 km NNE of Amboy, Washington · 15770 days ago · -2 km deep · 0 km away
  8. 1.612 km SSW of Packwood, Washington · 15773 days ago · 1 km deep · 48 km away
  9. 1.538 km NNE of Amboy, Washington · 15778 days ago · -2 km deep · 0 km away
  10. 1.638 km NNE of Amboy, Washington · 15782 days ago · -2 km deep · 1 km away
  11. 2.45 km ENE of Chehalis, Washington · 15783 days ago · 52 km deep · 76 km away
  12. 2.020 km SW of Tampico, Washington · 15784 days ago · -1 km deep · 90 km away
  13. 1.838 km S of Morton, Washington · 15784 days ago · -2 km deep · 1 km away
  14. 1.739 km NNE of Amboy, Washington · 15785 days ago · 0 km deep · 1 km away

Earthquakes todayWashington earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10157043. Read Tue, Sep 22, 2026, 10:51 AM UTC.