Washington earthquakes

M2.0 earthquake 1 km SE of Cowiche, Washington

A magnitude 2.0 earthquake struck 1 km SE of Cowiche, Washington on Mon, Dec 10, 1990, 8:19 AM PST (16:19 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M3.4 9 km NW of Mattawa, 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
2.0 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1990-12-10 16:19:19 UTC
Depth
14.9 km (9.3 mi), shallow
Epicenter
46.663° N, 120.698° 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, 0.7 km in depth
Magnitude uncertainty
±0.23
Depth from
From location
Station coverage gap
30°
Stations used
49

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 2.110 km NE of Nile, Washington · 13081 days ago · 1 km deep · 26 km away
  2. 1.611 km NE of Nile, Washington · 13081 days ago · 13 km deep · 27 km away
  3. 1.925 km ENE of Ashford, Washington · 13080 days ago · -2 km deep · 84 km away
  4. 3.19 km NW of Mattawa, Washington · 13077 days ago · 3 km deep · 56 km away
  5. 1.97 km WSW of George, Washington · 13076 days ago · 0 km deep · 72 km away
  6. 2.29 km NW of Mattawa, Washington · 13076 days ago · 3 km deep · 56 km away
  7. 1.99 km NW of Mattawa, Washington · 13076 days ago · 3 km deep · 56 km away
  8. 2.54 km NW of Bickleton, Washington · 13075 days ago · -1 km deep · 75 km away
  9. 2.325 km ENE of Ashford, Washington · 13073 days ago · -2 km deep · 82 km away
  10. 2.29 km NW of Mattawa, Washington · 13071 days ago · 2 km deep · 56 km away
  11. 1.59 km NW of Mattawa, Washington · 13071 days ago · 2 km deep · 57 km away
  12. 3.49 km NW of Mattawa, Washington · 13070 days ago · 3 km deep · 56 km away
  13. 1.720 km S of Packwood, Washington · 13060 days ago · -1 km deep · 75 km away
  14. 2.110 km SW of Greenwater, Washington · 13057 days ago · 15 km deep · 93 km away
  15. 1.97 km NNE of Bickleton, Washington · 13049 days ago · 11 km deep · 75 km away
  16. 1.56 km SW of Packwood, Washington · 13040 days ago · 4 km deep · 81 km away
  17. 1.813 km NNE of Ashford, Washington · 13029 days ago · 7 km deep · 98 km away
  18. 1.916 km NE of Naches, Washington · 13029 days ago · 6 km deep · 22 km away
  19. 3.414 km NE of Naches, Washington · 13029 days ago · 6 km deep · 20 km away

Before

  1. 1.814 km SW of Ellensburg, Washington · 13098 days ago · 6 km deep · 26 km away
  2. 1.827 km ESE of Desert Aire, Washington · 13102 days ago · 26 km deep · 85 km away
  3. 1.723 km ENE of Ashford, Washington · 13108 days ago · -2 km deep · 84 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10267843. Read Sun, Oct 4, 2026, 8:45 AM UTC.