Washington earthquakes

M1.7 earthquake 8 km SE of Mineral, Washington

A magnitude 1.7 earthquake struck 8 km SE of Mineral, Washington on Wed, Feb 28, 1990, 12:58 PM PST (20:58 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M3.0 Puget Sound region, Washington. This one was a foreshock.

Morton 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
1.7 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1990-02-28 20:58:46 UTC
Depth
17.7 km (11.0 mi), shallow
Epicenter
46.654° N, 122.118° 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 0.2 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
84°
Stations used
19

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 15 in the 30 days before it.

After

  1. 1.85 km S of Lake Morton-Berrydale, Washington · 13363 days ago · 21 km deep · 70 km away
  2. 1.613 km E of Wilkeson, Washington · 13360 days ago · 6 km deep · 53 km away
  3. 2.62 km WNW of Mirrormont, Washington · 13358 days ago · 14 km deep · 91 km away
  4. 1.724 km N of Amboy, Washington · 13349 days ago · 6 km deep · 63 km away
  5. 1.51 km ESE of Maple Heights-Lake Desire, Washington · 13348 days ago · 15 km deep · 87 km away
  6. 3.0Puget Sound region, Washington · 13347 days ago · 6 km deep · 76 km away
  7. 3.013 km NE of Ashford, Washington · 13339 days ago · 9 km deep · 27 km away
  8. 1.52 km NNE of Tanner, Washington · 13335 days ago · 14 km deep · 98 km away
  9. 2.14 km WSW of Rosedale, Washington · 13331 days ago · 23 km deep · 86 km away
  10. 1.538 km NNE of Amboy, Washington · 13330 days ago · 3 km deep · 51 km away
  11. 2.637 km NNE of Amboy, Washington · 13328 days ago · -2 km deep · 51 km away
  12. 1.522 km ENE of Ashford, Washington · 13326 days ago · -1 km deep · 34 km away
  13. 2.32 km SE of Maple Heights-Lake Desire, Washington · 13322 days ago · 19 km deep · 86 km away
  14. 2.32 km SE of Maple Heights-Lake Desire, Washington · 13322 days ago · 16 km deep · 86 km away
  15. 1.510 km E of Ashford, Washington · 13319 days ago · 7 km deep · 21 km away
  16. 1.838 km NNE of Amboy, Washington · 13318 days ago · -2 km deep · 51 km away
  17. 1.814 km SE of Mossyrock, Washington · 13318 days ago · 17 km deep · 32 km away
  18. 1.56 km W of Burley, Washington · 13310 days ago · 19 km deep · 95 km away
  19. 2.19 km W of Packwood, Washington · 13308 days ago · 8 km deep · 26 km away
  20. 2.410 km W of Packwood, Washington · 13308 days ago · 7 km deep · 24 km away
  21. 1.837 km NNE of Amboy, Washington · 13307 days ago · -2 km deep · 51 km away
  22. 1.538 km NNE of Amboy, Washington · 13305 days ago · -2 km deep · 51 km away

Before

  1. 1.523 km S of Morton, Washington · 13364 days ago · 7 km deep · 36 km away
  2. 1.612 km SE of Ashford, Washington · 13368 days ago · 7 km deep · 17 km away
  3. 1.538 km NNE of Amboy, Washington · 13370 days ago · 0 km deep · 50 km away
  4. 1.92 km NW of Snoqualmie Pass, Washington · 13372 days ago · 7 km deep · 99 km away
  5. 3.09 km W of Tumwater, Washington · 13372 days ago · 44 km deep · 80 km away
  6. 2.44 km SSE of DuPont, Washington · 13373 days ago · 24 km deep · 58 km away
  7. 1.737 km NNE of Amboy, Washington · 13373 days ago · 3 km deep · 51 km away
  8. 1.728 km SSE of Mossyrock, Washington · 13376 days ago · 6 km deep · 47 km away
  9. 2.237 km NNE of Amboy, Washington · 13377 days ago · 0 km deep · 51 km away
  10. 1.8Washington · 13384 days ago · 0 km deep · 50 km away
  11. 1.838 km NNE of Amboy, Washington · 13384 days ago · -2 km deep · 51 km away
  12. 1.637 km NNE of Amboy, Washington · 13385 days ago · -2 km deep · 51 km away
  13. 1.629 km NNW of Carson, Washington · 13388 days ago · 8 km deep · 78 km away
  14. 2.829 km NNW of Carson, Washington · 13388 days ago · 6 km deep · 78 km away
  15. 1.937 km NNE of Amboy, Washington · 13391 days ago · 5 km deep · 51 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10258413. Read Thu, Oct 1, 2026, 1:08 PM UTC.