Washington earthquakes

M2.1 earthquake 16 km S of Glacier, Washington

A magnitude 2.1 earthquake struck 16 km S of Glacier, Washington on Sun, May 20, 1984, 10:03 PM PDT (05:03 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.2 11 km NNE of Hamilton, 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
2.1 (md), micro
Local time
UTC
1984-05-21 05:03:43 UTC
Depth
-0.9 km (-0.5 mi), shallow
Epicenter
48.739° N, 121.929° 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 2.5 km horizontally, 5.6 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
149°
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 26 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 1.6Washington · 15465 days ago · -1 km deep · 2 km away
  2. 2.1Washington-British Columbia border region · 15460 days ago · 17 km deep · 84 km away
  3. 2.211 km NNE of Hamilton, Washington · 15456 days ago · 2 km deep · 13 km away
  4. 1.69 km N of Hamilton, Washington · 15456 days ago · -1 km deep · 15 km away
  5. 2.64 km NNW of Verlot, Washington · 15454 days ago · 14 km deep · 68 km away
  6. 1.61 km SSE of Friday Harbor, Washington · 15453 days ago · 49 km deep · 83 km away
  7. 2.05 km WNW of Sedro-Woolley, Washington · 15452 days ago · 13 km deep · 36 km away
  8. 1.65 km NW of Sedro-Woolley, Washington · 15452 days ago · 31 km deep · 34 km away
  9. 1.51 km ENE of West Lake Stevens, Washington · 15451 days ago · 58 km deep · 83 km away
  10. 1.72 km NNW of Alger, Washington · 15449 days ago · 12 km deep · 33 km away
  11. 2.15 km N of Burlington, Washington · 15446 days ago · 15 km deep · 38 km away
  12. 1.64 km W of Lynden, Washington · 15444 days ago · 17 km deep · 49 km away
  13. 2.66 km SE of Edison, Washington · 15440 days ago · 9 km deep · 42 km away
  14. 2.25 km ENE of Bay View, Washington · 15438 days ago · 14 km deep · 44 km away
  15. 2.36 km W of Rockport, Washington · 15438 days ago · 2 km deep · 33 km away
  16. 2.016 km W of Coupeville, Washington · 15433 days ago · 46 km deep · 91 km away
  17. 1.830 km ENE of Glacier, Washington · 15430 days ago · 4 km deep · 39 km away
  18. 1.65 km NNW of North Sultan, Washington · 15421 days ago · 11 km deep · 90 km away
  19. 2.16 km NNW of Freeland, Washington · 15421 days ago · 29 km deep · 88 km away
  20. 2.03 km SSE of Swede Heaven, Washington · 15421 days ago · -1 km deep · 56 km away
  21. 1.93 km SSW of Swede Heaven, Washington · 15420 days ago · 2 km deep · 55 km away
  22. 2.99 km N of Lyman, Washington · 15414 days ago · 2 km deep · 17 km away
  23. 1.73 km ENE of Granite Falls, Washington · 15414 days ago · 1 km deep · 72 km away
  24. 1.54 km S of Everson, Washington · 15412 days ago · 15 km deep · 34 km away
  25. 2.48 km N of Lyman, Washington · 15411 days ago · 0 km deep · 17 km away
  26. 2.231 km NE of Maple Ridge, Canada · 15405 days ago · -1 km deep · 84 km away

Before

  1. 1.74 km WNW of Orcas, Washington · 15468 days ago · 15 km deep · 80 km away
  2. 2.14 km E of Machias, Washington · 15471 days ago · 7 km deep · 84 km away
  3. 2.05 km ENE of Anacortes, Washington · 15476 days ago · 17 km deep · 51 km away
  4. 1.74 km E of Granite Falls, Washington · 15480 days ago · -1 km deep · 72 km away
  5. 1.710 km SSW of Darrington, Washington · 15484 days ago · 18 km deep · 68 km away
  6. 1.66 km NW of Burlington, Washington · 15486 days ago · 18 km deep · 43 km away
  7. 1.96 km SSE of Concrete, Washington · 15487 days ago · 3 km deep · 33 km away
  8. 1.73 km S of Alger, Washington · 15490 days ago · 18 km deep · 34 km away
  9. 2.09 km E of Orcas, Washington · 15492 days ago · 6 km deep · 67 km away

Earthquakes todayWashington earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10176478. Read Tue, Sep 22, 2026, 8:27 PM UTC.