Washington earthquakes

M1.8 earthquake 2 km E of Grapeview, Washington

A magnitude 1.8 earthquake struck 2 km E of Grapeview, Washington on Mon, Apr 16, 1984, 12:21 AM PST (08:21 UTC), 12 km (8 mi) below the surface.

A larger quake followed: M2.9 2 km S of Ames Lake, Washington. This one was a foreshock.

Grapeview 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
1984-04-16 08:21:20 UTC
Depth
12.1 km (7.5 mi), shallow
Epicenter
47.328° N, 122.805° 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, 1.3 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
63°
Stations used
11

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 26 in the 30 days before it.

After

  1. 1.60 km E of Medina, Washington · 15501 days ago · 24 km deep · 55 km away
  2. 1.72 km SSW of Everett, Washington · 15497 days ago · 26 km deep · 83 km away
  3. 2.92 km S of Ames Lake, Washington · 15489 days ago · 9 km deep · 70 km away
  4. 1.615 km E of Wilkeson, Washington · 15489 days ago · 6 km deep · 77 km away
  5. 1.711 km SSW of Seabeck, Washington · 15488 days ago · 7 km deep · 25 km away
  6. 2.37 km WNW of Gorst, Washington · 15486 days ago · 15 km deep · 25 km away
  7. 1.88 km E of Ashford, Washington · 15486 days ago · 13 km deep · 92 km away
  8. 2.13 km NW of Fall City, Washington · 15485 days ago · 2 km deep · 72 km away
  9. 1.86 km NE of Tanner, Washington · 15484 days ago · 13 km deep · 87 km away
  10. 1.72 km NNW of Fall City, Washington · 15484 days ago · 4 km deep · 74 km away
  11. 1.94 km SSW of River Road, Washington · 15484 days ago · -1 km deep · 82 km away
  12. 2.15 km SSW of Fall City, Washington · 15483 days ago · 20 km deep · 71 km away
  13. 1.514 km ENE of Lake Marcel-Stillwater, Washington · 15483 days ago · 27 km deep · 92 km away
  14. 2.19 km NNW of Carlsborg, Washington · 15480 days ago · 40 km deep · 99 km away
  15. 1.78 km SE of Buckley, Washington · 15477 days ago · 1 km deep · 70 km away
  16. 1.9Puget Sound region, Washington · 15475 days ago · 16 km deep · 17 km away
  17. 2.14 km E of Machias, Washington · 15472 days ago · 7 km deep · 95 km away
  18. 1.710 km E of Eatonville, Washington · 15468 days ago · 5 km deep · 71 km away
  19. 1.81 km W of Hobart, Washington · 15468 days ago · 22 km deep · 62 km away
  20. 1.94 km NE of Vashon, Washington · 15467 days ago · 8 km deep · 33 km away
  21. 2.115 km W of Quilcene, Washington · 15465 days ago · 46 km deep · 61 km away
  22. 1.9Puget Sound region, Washington · 15460 days ago · 15 km deep · 23 km away
  23. 3.65 km W of Burley, Washington · 15454 days ago · 21 km deep · 12 km away
  24. 2.85 km W of Burley, Washington · 15454 days ago · 22 km deep · 12 km away
  25. 1.51 km ENE of West Lake Stevens, Washington · 15453 days ago · 58 km deep · 92 km away
  26. 1.53 km S of Issaquah, Washington · 15451 days ago · -1 km deep · 62 km away
  27. 1.918 km NNE of Ashford, Washington · 15451 days ago · 6 km deep · 83 km away
  28. 1.85 km ESE of Carnation, Washington · 15450 days ago · 13 km deep · 80 km away
  29. 1.84 km SW of Wilderness Rim, Washington · 15449 days ago · 18 km deep · 75 km away
  30. 1.96 km W of Burley, Washington · 15447 days ago · 22 km deep · 12 km away
  31. 1.85 km SSW of Black Diamond, Washington · 15445 days ago · 19 km deep · 58 km away
  32. 2.29 km ENE of Ashford, Washington · 15443 days ago · 7 km deep · 90 km away
  33. 2.115 km NE of Ashford, Washington · 15442 days ago · 8 km deep · 85 km away
  34. 1.92 km NW of Bainbridge Island, Washington · 15442 days ago · 26 km deep · 40 km away

Before

  1. 2.014 km E of Tanner, Washington · 15501 days ago · 15 km deep · 95 km away
  2. 1.93 km NW of Fall City, Washington · 15504 days ago · 1 km deep · 73 km away
  3. 2.14 km WNW of Fall City, Washington · 15504 days ago · 1 km deep · 71 km away
  4. 1.72 km SW of Issaquah, Washington · 15505 days ago · 17 km deep · 60 km away
  5. 1.85 km SSE of Carbonado, Washington · 15508 days ago · 4 km deep · 68 km away
  6. 1.89 km SSE of Onalaska, Washington · 15508 days ago · 17 km deep · 93 km away
  7. 2.016 km SE of Carbonado, Washington · 15509 days ago · 7 km deep · 78 km away
  8. 3.312 km WSW of La Grande, Washington · 15509 days ago · 66 km deep · 64 km away
  9. 1.54 km WSW of Erlands Point-Kitsap Lake, Washington · 15509 days ago · 11 km deep · 29 km away
  10. 2.15 km SE of Monroe, Washington · 15510 days ago · 24 km deep · 85 km away
  11. 1.93 km WNW of Wauna, Washington · 15512 days ago · 22 km deep · 11 km away
  12. 2.34 km WSW of Coupeville, Washington · 15517 days ago · 24 km deep · 97 km away
  13. 1.714 km SSW of Alder, Washington · 15518 days ago · 4 km deep · 78 km away
  14. 1.85 km W of Burley, Washington · 15518 days ago · 23 km deep · 13 km away
  15. 2.24 km WNW of Fall City, Washington · 15519 days ago · 1 km deep · 71 km away
  16. 1.82 km NW of Fall City, Washington · 15519 days ago · 2 km deep · 73 km away
  17. 1.94 km S of Union, Washington · 15520 days ago · 42 km deep · 22 km away
  18. 2.023 km ENE of Ashford, Washington · 15523 days ago · 4 km deep · 95 km away
  19. 2.91 km WNW of Keyport, Washington · 15525 days ago · 18 km deep · 44 km away
  20. 1.93 km W of Blyn, Washington · 15525 days ago · -1 km deep · 79 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10174138. Read Thu, Sep 24, 2026, 8:04 AM UTC.