Washington earthquakes

M1.5 earthquake 12 km NNE of Hamilton, Washington

A magnitude 1.5 earthquake struck 12 km NNE of Hamilton, Washington on Thu, May 28, 1981, 8:13 AM PDT (15:13 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M3.4 7 km S of Kendall, Washington. This one was a foreshock.

Concrete 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
1.5 (md), micro
Local time
UTC
1981-05-28 15:13:06 UTC
Depth
-0.8 km (-0.5 mi), shallow
Epicenter
48.635° N, 121.945° 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, 0.7 km in depth
Magnitude uncertainty
±0.07
Depth from
Operator assigned
Station coverage gap
144°
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: 34 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 1.814 km NNE of Hamilton, Washington · 16559 days ago · -1 km deep · 3 km away
  2. 1.911 km NE of Oak Bay, Canada · 16549 days ago · 35 km deep · 91 km away
  3. 1.815 km NNE of Hamilton, Washington · 16544 days ago · -1 km deep · 2 km away
  4. 1.915 km NNE of Hamilton, Washington · 16544 days ago · -1 km deep · 3 km away
  5. 1.516 km SSE of Darrington, Washington · 16541 days ago · 9 km deep · 65 km away
  6. 1.54 km WSW of Darrington, Washington · 16540 days ago · 9 km deep · 49 km away
  7. 3.47 km S of Kendall, Washington · 16534 days ago · 5 km deep · 28 km away
  8. 2.36 km ENE of Deming, Washington · 16534 days ago · 1 km deep · 28 km away
  9. 2.15 km E of Deming, Washington · 16534 days ago · 1 km deep · 26 km away
  10. 2.77 km S of Kendall, Washington · 16534 days ago · 2 km deep · 28 km away
  11. 2.16 km ENE of Deming, Washington · 16534 days ago · 1 km deep · 27 km away
  12. 2.16 km ENE of Deming, Washington · 16534 days ago · 1 km deep · 27 km away
  13. 2.37 km ENE of Deming, Washington · 16534 days ago · 2 km deep · 27 km away
  14. 1.97 km E of Deming, Washington · 16533 days ago · 10 km deep · 26 km away
  15. 1.55 km NE of Port Townsend, Washington · 16531 days ago · 26 km deep · 78 km away
  16. 2.26 km ENE of Deming, Washington · 16529 days ago · 2 km deep · 27 km away
  17. 1.96 km ENE of Deming, Washington · 16529 days ago · 7 km deep · 26 km away
  18. 2.36 km ENE of Deming, Washington · 16529 days ago · 2 km deep · 27 km away
  19. 1.96 km E of Deming, Washington · 16529 days ago · 3 km deep · 25 km away
  20. 1.96 km E of Deming, Washington · 16528 days ago · 1 km deep · 24 km away
  21. 2.06 km ENE of Deming, Washington · 16528 days ago · 2 km deep · 27 km away
  22. 2.56 km E of Deming, Washington · 16528 days ago · 2 km deep · 26 km away
  23. 1.95 km ENE of Deming, Washington · 16527 days ago · 2 km deep · 27 km away
  24. 2.16 km ENE of Deming, Washington · 16527 days ago · 7 km deep · 27 km away
  25. 1.87 km SSE of Kendall, Washington · 16527 days ago · 9 km deep · 27 km away
  26. 1.55 km W of Darrington, Washington · 16526 days ago · 11 km deep · 48 km away
  27. 2.313 km WNW of Orcas, Washington · 16525 days ago · 16 km deep · 86 km away
  28. 1.97 km SSE of Kendall, Washington · 16521 days ago · 3 km deep · 27 km away
  29. 1.95 km S of Kendall, Washington · 16517 days ago · 9 km deep · 29 km away
  30. 1.613 km WNW of Orcas, Washington · 16512 days ago · 15 km deep · 86 km away
  31. 2.07 km E of Deming, Washington · 16510 days ago · 3 km deep · 26 km away
  32. 2.04 km W of Darrington, Washington · 16509 days ago · 2 km deep · 48 km away
  33. 1.8Washington · 16503 days ago · 7 km deep · 16 km away
  34. 2.15 km NW of Orcas, Washington · 16503 days ago · 16 km deep · 77 km away

Before

  1. 1.68 km SSW of Concrete, Washington · 16565 days ago · 3 km deep · 23 km away
  2. 1.519 km NNE of Index, Washington · 16569 days ago · 6 km deep · 79 km away
  3. 2.40 km W of Mountlake Terrace, Washington · 16571 days ago · 23 km deep · 98 km away
  4. 2.06 km NNE of Port Townsend, Washington · 16573 days ago · 21 km deep · 78 km away
  5. 2.413 km WSW of Ault Field, Washington · 16574 days ago · 29 km deep · 76 km away
  6. 1.52 km SW of Roosevelt, Washington · 16582 days ago · 25 km deep · 85 km away
  7. 1.5Washington · 16584 days ago · 1 km deep · 35 km away
  8. 1.55 km NNE of Oso, Washington · 16586 days ago · 0 km deep · 35 km away
  9. 2.56 km NNE of Oso, Washington · 16586 days ago · 1 km deep · 35 km away
  10. 1.65 km NNE of Oso, Washington · 16586 days ago · 1 km deep · 35 km away
  11. 2.05 km NNE of Oso, Washington · 16586 days ago · 5 km deep · 36 km away
  12. 1.76 km NNE of Oso, Washington · 16586 days ago · 0 km deep · 34 km away

Earthquakes todayWashington earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10106588. Read Mon, Sep 28, 2026, 5:33 PM UTC.