Washington earthquakes

M2.3 earthquake 10 km SE of Mossyrock, Washington

A magnitude 2.3 earthquake struck 10 km SE of Mossyrock, Washington on Thu, Sep 15, 1983, 11:03 AM PDT (18:03 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M2.7 2 km W of Rosedale, Washington. This one was a foreshock.

Mossyrock 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
2.3 (md), micro
Local time
UTC
1983-09-15 18:03:01 UTC
Depth
14.3 km (8.9 mi), shallow
Epicenter
46.464° N, 122.394° 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, 0.9 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
88°
Stations used
32

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 1.638 km NNE of Amboy, Washington · 15709 days ago · -1 km deep · 33 km away
  2. 2.025 km SSE of Packwood, Washington · 15704 days ago · -1 km deep · 68 km away
  3. 2.125 km SSE of Packwood, Washington · 15702 days ago · 0 km deep · 68 km away
  4. 1.625 km SSE of Packwood, Washington · 15701 days ago · 0 km deep · 68 km away
  5. 2.72 km W of Rosedale, Washington · 15699 days ago · 27 km deep · 99 km away
  6. 1.638 km NNE of Amboy, Washington · 15697 days ago · -1 km deep · 33 km away
  7. 2.219 km S of Morton, Washington · 15696 days ago · 8 km deep · 14 km away
  8. 1.914 km SW of Alder, Washington · 15695 days ago · -1 km deep · 28 km away
  9. 1.917 km SE of Carbonado, Washington · 15691 days ago · -1 km deep · 65 km away
  10. 1.737 km NNE of Amboy, Washington · 15691 days ago · -1 km deep · 33 km away
  11. 1.637 km NNE of Amboy, Washington · 15690 days ago · -1 km deep · 33 km away
  12. 1.520 km S of Morton, Washington · 15684 days ago · 9 km deep · 15 km away
  13. 1.736 km NNE of Amboy, Washington · 15681 days ago · -1 km deep · 35 km away
  14. 1.58 km NW of Greenwater, Washington · 15680 days ago · -1 km deep · 97 km away
  15. 2.55 km SW of Morton, Washington · 15674 days ago · 16 km deep · 9 km away
  16. 2.02 km NNW of Lakeland South, Washington · 15672 days ago · 13 km deep · 93 km away
  17. 2.212 km NNE of La Center, Washington · 15667 days ago · 11 km deep · 57 km away
  18. 1.538 km NNE of Amboy, Washington · 15667 days ago · 0 km deep · 33 km away
  19. 2.112 km WNW of Amboy, Washington · 15666 days ago · 11 km deep · 58 km away
  20. 2.026 km S of Morton, Washington · 15666 days ago · 9 km deep · 18 km away
  21. 1.611 km WNW of Warren, Oregon · 15663 days ago · 15 km deep · 81 km away
  22. 2.420 km E of Packwood, Washington · 15662 days ago · -1 km deep · 77 km away
  23. 1.737 km NNE of Amboy, Washington · 15658 days ago · 0 km deep · 33 km away
  24. 1.522 km S of Morton, Washington · 15653 days ago · 10 km deep · 16 km away

Before

  1. 2.211 km ESE of Carbonado, Washington · 15714 days ago · 18 km deep · 74 km away
  2. 1.823 km ESE of Packwood, Washington · 15716 days ago · -1 km deep · 77 km away
  3. 2.238 km S of Morton, Washington · 15717 days ago · -1 km deep · 32 km away
  4. 1.95 km WNW of Tumwater, Washington · 15721 days ago · -1 km deep · 77 km away
  5. 2.227 km S of Greenwater, Washington · 15724 days ago · -1 km deep · 72 km away
  6. 1.91 km WNW of Federal Way, Washington · 15726 days ago · 16 km deep · 96 km away
  7. 1.920 km ENE of Ashford, Washington · 15732 days ago · 0 km deep · 62 km away
  8. 1.615 km NNE of Packwood, Washington · 15732 days ago · 2 km deep · 70 km away
  9. 2.238 km NNE of Amboy, Washington · 15733 days ago · -1 km deep · 33 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10162158. Read Tue, Sep 22, 2026, 10:17 AM UTC.