Washington earthquakes

M1.8 earthquake 2 km NW of Mirrormont, Washington

A magnitude 1.8 earthquake struck 2 km NW of Mirrormont, Washington on Wed, Jan 21, 1981, 5:03 AM PST (13:03 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.0 6 km W of Seattle, Washington. This one was a foreshock.

Mirrormont 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
1981-01-21 13:03:04 UTC
Depth
10.3 km (6.4 mi), shallow
Epicenter
47.476° N, 122.014° 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, 1.2 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
139°
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 25 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 3.06 km W of Seattle, Washington · 16677 days ago · 22 km deep · 33 km away
  2. 2.77 km ENE of Snoqualmie, Washington · 16672 days ago · 10 km deep · 23 km away
  3. 1.57 km ENE of Lake McMurray, Washington · 16670 days ago · 0 km deep · 96 km away
  4. 1.514 km SE of Verlot, Washington · 16667 days ago · 8 km deep · 67 km away
  5. 1.55 km ESE of Oso, Washington · 16665 days ago · -1 km deep · 87 km away
  6. 1.814 km SW of Alder, Washington · 16664 days ago · 20 km deep · 91 km away
  7. 1.63 km E of Cle Elum, Washington · 16656 days ago · 7 km deep · 89 km away
  8. 2.62 km E of Cle Elum, Washington · 16655 days ago · 5 km deep · 89 km away
  9. 1.53 km ENE of Cle Elum, Washington · 16654 days ago · 0 km deep · 89 km away
  10. 4.23 km E of Cle Elum, Washington · 16652 days ago · 3 km deep · 90 km away
  11. 2.02 km E of Cle Elum, Washington · 16652 days ago · -1 km deep · 89 km away
  12. 2.00 km ENE of Lake Marcel-Stillwater, Washington · 16649 days ago · 7 km deep · 26 km away
  13. 1.81 km WNW of Federal Way, Washington · 16646 days ago · 15 km deep · 29 km away
  14. 2.83 km E of Cle Elum, Washington · 16640 days ago · -1 km deep · 90 km away
  15. 1.75 km E of Carnation, Washington · 16636 days ago · 15 km deep · 24 km away
  16. 2.94 km E of Cle Elum, Washington · 16636 days ago · -1 km deep · 90 km away
  17. 2.67 km NE of Snoqualmie Pass, Washington · 16631 days ago · 7 km deep · 51 km away
  18. 1.615 km NNE of May Creek, Washington · 16627 days ago · 8 km deep · 65 km away
  19. 3.619 km NNE of Index, Washington · 16627 days ago · 5 km deep · 69 km away
  20. 1.518 km N of Index, Washington · 16627 days ago · 5 km deep · 68 km away
  21. 1.618 km NE of May Creek, Washington · 16627 days ago · 6 km deep · 68 km away
  22. 1.918 km N of Index, Washington · 16627 days ago · 5 km deep · 68 km away
  23. 2.410 km NE of Snoqualmie, Washington · 16626 days ago · 6 km deep · 26 km away
  24. 1.56 km SE of Freeland, Washington · 16625 days ago · 50 km deep · 64 km away
  25. 1.74 km WNW of Burien, Washington · 16620 days ago · 17 km deep · 29 km away

Before

  1. 1.93 km SSW of Keyport, Washington · 16688 days ago · 54 km deep · 52 km away
  2. 2.014 km ENE of Snoqualmie Pass, Washington · 16700 days ago · 4 km deep · 60 km away
  3. 1.68 km ENE of Snoqualmie, Washington · 16702 days ago · 9 km deep · 24 km away
  4. 1.912 km ESE of Carbonado, Washington · 16703 days ago · 16 km deep · 49 km away
  5. 1.823 km NNW of Leavenworth, Washington · 16703 days ago · 13 km deep · 99 km away
  6. 1.91 km NNE of Picnic Point, Washington · 16705 days ago · 7 km deep · 52 km away
  7. 1.57 km NE of Bonney Lake, Washington · 16706 days ago · 12 km deep · 29 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10095743. Read Tue, Sep 22, 2026, 4:16 AM UTC.