Washington earthquakes

M1.9 earthquake 9 km NW of Mattawa, Washington

A magnitude 1.9 earthquake struck 9 km NW of Mattawa, Washington on Sun, Dec 16, 1990, 9:46 AM PST (17:46 UTC), 3 km (2 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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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.9 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1990-12-16 17:46:07 UTC
Depth
2.6 km (1.6 mi), shallow
Epicenter
46.803° N, 119.992° 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, 0.5 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
58°
Stations used
30

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.54 km NW of Bickleton, Washington · 13073 days ago · -1 km deep · 90 km away
  2. 2.29 km NW of Mattawa, Washington · 13069 days ago · 2 km deep · 1 km away
  3. 1.59 km NW of Mattawa, Washington · 13069 days ago · 2 km deep · 1 km away
  4. 3.49 km NW of Mattawa, Washington · 13068 days ago · 3 km deep · 1 km away
  5. 2.44 km W of Entiat, Washington · 13049 days ago · 3 km deep · 99 km away
  6. 1.97 km NNE of Bickleton, Washington · 13047 days ago · 11 km deep · 85 km away
  7. 2.413 km W of Entiat, Washington · 13042 days ago · -1 km deep · 100 km away
  8. 1.916 km NE of Naches, Washington · 13027 days ago · 6 km deep · 42 km away
  9. 3.414 km NE of Naches, Washington · 13027 days ago · 6 km deep · 43 km away
  10. 2.71 km SSW of Warden, Washington · 13026 days ago · 2 km deep · 74 km away

Before

  1. 2.29 km NW of Mattawa, Washington · 13074 days ago · 3 km deep · 0 km away
  2. 1.97 km WSW of George, Washington · 13074 days ago · 0 km deep · 28 km away
  3. 3.19 km NW of Mattawa, Washington · 13075 days ago · 3 km deep · 0 km away
  4. 1.611 km NE of Nile, Washington · 13079 days ago · 13 km deep · 64 km away
  5. 2.110 km NE of Nile, Washington · 13079 days ago · 1 km deep · 65 km away
  6. 2.01 km SE of Cowiche, Washington · 13080 days ago · 15 km deep · 56 km away
  7. 1.515 km SSW of Cascade Valley, Washington · 13086 days ago · 0 km deep · 50 km away
  8. 1.814 km SW of Ellensburg, Washington · 13096 days ago · 6 km deep · 52 km away
  9. 1.827 km ESE of Desert Aire, Washington · 13100 days ago · 26 km deep · 39 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10269613. Read Fri, Oct 2, 2026, 11:24 AM UTC.