Washington earthquakes

M1.6 earthquake 23 km SSE of Kittitas, Washington

A magnitude 1.6 earthquake struck 23 km SSE of Kittitas, Washington on Sun, Dec 1, 1985, 3:20 PM PST (23:20 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M1.7 8 km W of Entiat, Washington. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.6 (md), micro
Local time
UTC
1985-12-01 23:20:54 UTC
Depth
0.9 km (0.6 mi), shallow
Epicenter
46.792° N, 120.294° 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 1.8 km horizontally, 5.5 km in depth
Magnitude uncertainty
±0.11
Depth from
Operator assigned
Station coverage gap
67°
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 1.78 km W of Entiat, Washington · 14904 days ago · 4 km deep · 98 km away
  2. 1.823 km SSE of Kittitas, Washington · 14903 days ago · 2 km deep · 0 km away
  3. 2.913 km ESE of Prosser, Washington · 14902 days ago · 1 km deep · 87 km away
  4. 2.64 km NE of Royal City, Washington · 14902 days ago · 0 km deep · 56 km away
  5. 2.310 km ESE of Royal City, Washington · 14899 days ago · 0 km deep · 60 km away
  6. 1.910 km WSW of Tieton, Washington · 14887 days ago · 5 km deep · 47 km away
  7. 2.43 km NNE of West Valley, Washington · 14881 days ago · 8 km deep · 29 km away
  8. 1.53 km NE of West Valley, Washington · 14881 days ago · 8 km deep · 29 km away
  9. 2.13 km NE of West Valley, Washington · 14881 days ago · 7 km deep · 29 km away
  10. 1.823 km NNE of Terrace Heights, Washington · 14877 days ago · -1 km deep · 0 km away
  11. 1.723 km NNE of Terrace Heights, Washington · 14876 days ago · 3 km deep · 1 km away
  12. 2.18 km NNW of Moses Lake North, Washington · 14876 days ago · 18 km deep · 89 km away
  13. 2.022 km NNE of Terrace Heights, Washington · 14876 days ago · 4 km deep · 1 km away
  14. 1.522 km ESE of Packwood, Washington · 14872 days ago · -1 km deep · 89 km away
  15. 1.723 km ESE of Packwood, Washington · 14872 days ago · -1 km deep · 89 km away
  16. 1.714 km N of Naches, Washington · 14871 days ago · 11 km deep · 29 km away
  17. 1.86 km W of Entiat, Washington · 14869 days ago · 3 km deep · 97 km away
  18. 1.613 km SSW of Thorp, Washington · 14864 days ago · 6 km deep · 39 km away
  19. 1.71 km W of Yakima, Washington · 14863 days ago · 11 km deep · 28 km away
  20. 1.90 km NNE of Yakima, Washington · 14863 days ago · 10 km deep · 26 km away
  21. 1.812 km NW of Mattawa, Washington · 14855 days ago · 0 km deep · 19 km away
  22. 2.027 km NNW of Benton City, Washington · 14847 days ago · -1 km deep · 60 km away
  23. 1.627 km NNW of Benton City, Washington · 14847 days ago · -1 km deep · 60 km away
  24. 2.122 km NNE of Terrace Heights, Washington · 14845 days ago · 3 km deep · 1 km away

Before

  1. 3.28 km NNW of Moses Lake North, Washington · 14914 days ago · 20 km deep · 89 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10197818. Read Tue, Sep 22, 2026, 5:59 AM UTC.