Washington earthquakes

M2.1 earthquake Washington

A magnitude 2.1 earthquake struck in Washington on Tue, Aug 27, 1985, 8:53 PM PDT (03:53 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M2.4 15 km ESE of Mansfield, Washington. This one was a foreshock.

Entiat 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
2.1 (md), micro
Local time
UTC
1985-08-28 03:53:33 UTC
Depth
1.8 km (1.1 mi), shallow
Epicenter
47.666° N, 120.296° 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 0.5 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
93°
Stations used
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 31 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.913 km E of Mansfield, Washington · 14998 days ago · -1 km deep · 65 km away
  2. 2.415 km ESE of Mansfield, Washington · 14998 days ago · -1 km deep · 65 km away
  3. 1.913 km E of Bridgeport, Washington · 14994 days ago · 0 km deep · 71 km away
  4. 2.213 km WNW of Mattawa, Washington · 14993 days ago · 0 km deep · 98 km away
  5. 1.61 km N of Chelan Falls, Washington · 14991 days ago · 0 km deep · 29 km away
  6. 2.113 km E of Bridgeport, Washington · 14991 days ago · 0 km deep · 71 km away
  7. 1.822 km E of Skykomish, Washington · 14991 days ago · 0 km deep · 58 km away
  8. 1.530 km NW of Leavenworth, Washington · 14988 days ago · -1 km deep · 48 km away
  9. 1.83 km E of Manson, Washington · 14984 days ago · 0 km deep · 27 km away
  10. 2.10 km E of Entiat, Washington · 14979 days ago · 0 km deep · 7 km away
  11. 2.218 km E of Mansfield, Washington · 14976 days ago · 0 km deep · 70 km away
  12. 1.913 km WNW of Mattawa, Washington · 14974 days ago · 3 km deep · 97 km away
  13. 2.118 km NNW of Banks Lake South, Washington · 14974 days ago · 0 km deep · 69 km away
  14. 1.712 km WNW of Mattawa, Washington · 14973 days ago · 0 km deep · 98 km away
  15. 1.61 km NNW of Chelan Falls, Washington · 14972 days ago · 0 km deep · 28 km away
  16. 2.01 km SW of Quincy, Washington · 14971 days ago · 0 km deep · 59 km away
  17. 2.517 km NNW of Banks Lake South, Washington · 14971 days ago · 0 km deep · 69 km away
  18. 1.8Washington · 14968 days ago · 4 km deep · 14 km away
  19. 1.61 km NNW of Chelan Falls, Washington · 14968 days ago · -1 km deep · 28 km away
  20. 3.012 km WNW of Mattawa, Washington · 14968 days ago · 1 km deep · 98 km away
  21. 3.012 km WNW of Mattawa, Washington · 14968 days ago · 1 km deep · 99 km away
  22. 2.512 km WNW of Mattawa, Washington · 14968 days ago · 1 km deep · 98 km away
  23. 1.59 km WNW of Entiat, Washington · 14962 days ago · 4 km deep · 5 km away
  24. 3.29 km NNW of Entiat, Washington · 14959 days ago · 6 km deep · 10 km away
  25. 2.112 km SE of Bridgeport, Washington · 14957 days ago · 0 km deep · 61 km away
  26. 2.417 km NNW of Banks Lake South, Washington · 14956 days ago · 0 km deep · 68 km away
  27. 1.622 km NNE of Terrace Heights, Washington · 14953 days ago · 0 km deep · 98 km away
  28. 2.123 km NNE of Terrace Heights, Washington · 14953 days ago · 2 km deep · 98 km away
  29. 1.822 km NNE of Terrace Heights, Washington · 14948 days ago · 2 km deep · 98 km away
  30. 1.914 km SSW of Vantage, Washington · 14947 days ago · 0 km deep · 96 km away
  31. 1.912 km NW of Mattawa, Washington · 14947 days ago · 4 km deep · 98 km away

Before

  1. 1.914 km NW of Mattawa, Washington · 15005 days ago · 0 km deep · 97 km away
  2. 1.811 km SW of Ellensburg, Washington · 15007 days ago · 9 km deep · 87 km away
  3. 1.77 km N of Methow, Washington · 15008 days ago · -1 km deep · 64 km away
  4. 2.19 km WSW of Royal City, Washington · 15010 days ago · 0 km deep · 96 km away
  5. 1.61 km N of Chelan Falls, Washington · 15020 days ago · 0 km deep · 29 km away
  6. 1.829 km NW of Leavenworth, Washington · 15022 days ago · -1 km deep · 48 km away
  7. 1.512 km ENE of Mansfield, Washington · 15028 days ago · 0 km deep · 64 km away
  8. 2.35 km E of Entiat, Washington · 15031 days ago · 3 km deep · 12 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10196498. Read Thu, Sep 24, 2026, 12:32 AM UTC.