Washington earthquakes

M2.8 earthquake 2 km ENE of Lochsloy, Washington

A magnitude 2.8 earthquake struck 2 km ENE of Lochsloy, Washington on Tue, Jul 24, 1973, 2:50 PM PDT (21:50 UTC), 43 km (27 mi) below the surface.

A larger quake followed: M3.7 27 km E of Darrington, Washington. This one was a foreshock.

Lochsloy 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
2.8 (md), micro
Local time
UTC
1973-07-24 21:50:57 UTC
Depth
43.2 km (26.9 mi), shallow
Epicenter
48.059° N, 122.002° 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 7.6 km horizontally, 5.8 km in depth
Magnitude uncertainty
±0.25
Depth from
From location
Station coverage gap
147°
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 45 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.12 km N of Burlington, Washington · 19415 days ago · 11 km deep · 54 km away
  2. 2.72 km SSE of Wilderness Rim, Washington · 19413 days ago · 15 km deep · 73 km away
  3. 1.511 km S of Darrington, Washington · 19404 days ago · 1 km deep · 31 km away
  4. 1.75 km ENE of Sumner, Washington · 19401 days ago · 22 km deep · 93 km away
  5. 1.97 km NNE of Bonney Lake, Washington · 19400 days ago · 26 km deep · 92 km away
  6. 2.71 km NNE of Woods Creek, Washington · 19399 days ago · 12 km deep · 21 km away
  7. 1.90 km NW of Edmonds, Washington · 19393 days ago · 23 km deep · 39 km away
  8. 1.72 km NW of Ravensdale, Washington · 19392 days ago · 5 km deep · 76 km away
  9. 1.70 km E of Mill Creek East, Washington · 19386 days ago · 16 km deep · 28 km away
  10. 1.70 km SW of Allyn, Washington · 19385 days ago · 22 km deep · 97 km away
  11. 1.81 km ENE of Silver Firs, Washington · 19385 days ago · 23 km deep · 23 km away
  12. 2.313 km W of Quilcene, Washington · 19382 days ago · 48 km deep · 83 km away
  13. 1.61 km ESE of Clyde Hill, Washington · 19381 days ago · 25 km deep · 50 km away
  14. 1.66 km ESE of Bainbridge Island, Washington · 19381 days ago · -1 km deep · 61 km away
  15. 1.53 km W of Hunts Point, Washington · 19380 days ago · 2 km deep · 51 km away
  16. 1.54 km WSW of Seattle, Washington · 19380 days ago · -1 km deep · 60 km away
  17. 1.52 km W of Seattle, Washington · 19380 days ago · 1 km deep · 57 km away
  18. 1.90 km ENE of Seattle, Washington · 19380 days ago · 1 km deep · 55 km away
  19. 1.53 km NNW of Seattle, Washington · 19380 days ago · 0 km deep · 54 km away
  20. 2.012 km SE of Hamilton, Washington · 19379 days ago · -1 km deep · 43 km away
  21. 1.83 km NNE of Seattle, Washington · 19378 days ago · -1 km deep · 52 km away
  22. 2.02 km WNW of Seattle, Washington · 19378 days ago · -1 km deep · 56 km away
  23. 1.63 km WNW of Seattle, Washington · 19377 days ago · -1 km deep · 56 km away
  24. 2.311 km SW of Concrete, Washington · 19376 days ago · 0 km deep · 45 km away
  25. 3.727 km E of Darrington, Washington · 19376 days ago · 4 km deep · 61 km away
  26. 2.15 km ESE of Port Townsend, Washington · 19376 days ago · 59 km deep · 51 km away
  27. 1.95 km WSW of Seattle, Washington · 19376 days ago · 1 km deep · 60 km away
  28. 2.44 km NW of Swede Heaven, Washington · 19375 days ago · -1 km deep · 34 km away
  29. 2.80 km NNE of Enetai, Washington · 19372 days ago · 20 km deep · 68 km away
  30. 1.81 km SE of Enetai, Washington · 19372 days ago · 20 km deep · 69 km away
  31. 2.70 km ENE of Enetai, Washington · 19372 days ago · 20 km deep · 69 km away
  32. 1.91 km ESE of Enetai, Washington · 19372 days ago · 20 km deep · 69 km away
  33. 1.85 km ESE of Nooksack, Washington · 19370 days ago · 15 km deep · 95 km away
  34. 2.45 km ESE of Nooksack, Washington · 19369 days ago · 21 km deep · 97 km away
  35. 1.86 km NW of Friday Harbor, Washington · 19369 days ago · 5 km deep · 98 km away
  36. 1.73 km ENE of Mirrormont, Washington · 19368 days ago · 23 km deep · 65 km away
  37. 1.62 km NNE of Dash Point, Washington · 19368 days ago · 4 km deep · 86 km away
  38. 1.55 km N of Marrowstone, Washington · 19366 days ago · 24 km deep · 50 km away
  39. 1.66 km WSW of Seattle, Washington · 19366 days ago · -1 km deep · 61 km away
  40. 2.116 km W of Quilcene, Washington · 19366 days ago · 45 km deep · 87 km away
  41. 2.41 km NE of Shoreline, Washington · 19365 days ago · 23 km deep · 40 km away
  42. 2.011 km SW of Seabeck, Washington · 19364 days ago · 9 km deep · 89 km away
  43. 2.34 km SW of Geneva, Washington · 19364 days ago · 24 km deep · 80 km away
  44. 1.54 km SW of Seattle, Washington · 19363 days ago · 0 km deep · 60 km away
  45. 2.29 km ENE of Snoqualmie, Washington · 19358 days ago · 81 km deep · 59 km away

Before

  1. 2.55 km SW of Darrington, Washington · 19419 days ago · -1 km deep · 32 km away
  2. 2.92 km NNW of Belfair, Washington · 19420 days ago · 21 km deep · 91 km away
  3. 1.64 km SW of Hansville, Washington · 19421 days ago · 18 km deep · 48 km away
  4. 2.65 km S of Sultan, Washington · 19421 days ago · 16 km deep · 31 km away
  5. 1.61 km E of Snoqualmie Pass, Washington · 19422 days ago · -1 km deep · 87 km away
  6. 1.50 km W of Auburn, Washington · 19423 days ago · 25 km deep · 85 km away
  7. 1.72 km WSW of Medina, Washington · 19429 days ago · -1 km deep · 54 km away
  8. 1.73 km N of Fife Heights, Washington · 19437 days ago · 36 km deep · 89 km away
  9. 2.17 km WNW of Gorst, Washington · 19438 days ago · 21 km deep · 81 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10856623. Read Tue, Sep 22, 2026, 2:53 PM UTC.