Washington earthquakes

M2.3 earthquake 1 km ENE of Hamilton, Washington

A magnitude 2.3 earthquake struck 1 km ENE of Hamilton, Washington on Tue, Nov 20, 1984, 8:07 AM PST (16:07 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M2.7 2 km E of Kirkland, Washington. This one was a foreshock.

Concrete 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
2.3 (md), micro
Local time
UTC
1984-11-20 16:07:05 UTC
Depth
-0.6 km (-0.4 mi), shallow
Epicenter
48.526° N, 121.976° 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 0.1 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
129°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 1.84 km S of Bell Hill, Washington · 15280 days ago · -1 km deep · 99 km away
  2. 1.59 km NW of Orcas, Washington · 15279 days ago · 20 km deep · 78 km away
  3. 2.72 km E of Kirkland, Washington · 15271 days ago · 23 km deep · 95 km away
  4. 3.17 km NW of Concrete, Washington · 15269 days ago · -1 km deep · 15 km away
  5. 3.27 km NW of Concrete, Washington · 15268 days ago · -1 km deep · 14 km away
  6. 1.96 km NW of Concrete, Washington · 15260 days ago · 1 km deep · 14 km away
  7. 1.65 km NNW of Concrete, Washington · 15256 days ago · 3 km deep · 16 km away
  8. 1.50 km NW of Carnation, Washington · 15255 days ago · 12 km deep · 97 km away
  9. 1.62 km ENE of Clyde Hill, Washington · 15254 days ago · 24 km deep · 100 km away
  10. 1.82 km SE of Shoreline, Washington · 15253 days ago · 18 km deep · 91 km away
  11. 2.043 km WNW of Winthrop, Washington · 15252 days ago · -1 km deep · 97 km away
  12. 1.66 km NNW of Concrete, Washington · 15252 days ago · 4 km deep · 15 km away
  13. 1.75 km N of Hamilton, Washington · 15252 days ago · 13 km deep · 5 km away
  14. 2.20 km N of Woodway, Washington · 15251 days ago · 22 km deep · 86 km away
  15. 2.97 km NW of Concrete, Washington · 15248 days ago · 2 km deep · 14 km away
  16. 1.74 km NNW of Bryant, Washington · 15246 days ago · 12 km deep · 32 km away
  17. 2.17 km NW of Concrete, Washington · 15240 days ago · 1 km deep · 14 km away
  18. 1.97 km NW of Concrete, Washington · 15238 days ago · 1 km deep · 14 km away
  19. 1.86 km ESE of Carnation, Washington · 15230 days ago · 12 km deep · 100 km away
  20. 2.58 km NNE of Lake Marcel-Stillwater, Washington · 15230 days ago · 0 km deep · 86 km away
  21. 3.38 km N of Quilcene, Washington · 15229 days ago · 21 km deep · 96 km away
  22. 2.48 km NNE of Lake Marcel-Stillwater, Washington · 15229 days ago · 1 km deep · 86 km away

Before

  1. 2.01 km N of Woods Creek, Washington · 15281 days ago · 16 km deep · 70 km away
  2. 1.73 km NE of Woods Creek, Washington · 15284 days ago · -1 km deep · 70 km away
  3. 2.74 km NNW of Bryant, Washington · 15284 days ago · 14 km deep · 32 km away
  4. 1.91 km E of Brier, Washington · 15292 days ago · 20 km deep · 85 km away
  5. 1.93 km N of Bryant, Washington · 15294 days ago · 15 km deep · 31 km away
  6. 1.710 km NNE of Hamilton, Washington · 15295 days ago · 12 km deep · 9 km away
  7. 1.54 km NE of Mukilteo, Washington · 15297 days ago · 2 km deep · 65 km away
  8. 2.03 km S of Woodway, Washington · 15303 days ago · 18 km deep · 90 km away
  9. 2.11 km SE of Big Lake, Washington · 15305 days ago · 13 km deep · 24 km away
  10. 1.710 km NE of Hamilton, Washington · 15306 days ago · 14 km deep · 9 km away
  11. 1.611 km ESE of Verlot, Washington · 15308 days ago · 3 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10183563. Read Tue, Sep 22, 2026, 7:59 AM UTC.