Washington earthquakes

M2.1 earthquake 5 km NE of Oso, Washington

A magnitude 2.1 earthquake struck 5 km NE of Oso, Washington on Sun, Jul 21, 2002, 9:26 PM PDT (04:26 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.6 3 km E of Port Hadlock-Irondale, 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
2.1 (md), micro
Local time
UTC
2002-07-22 04:26:32 UTC
Depth
-0.9 km (-0.5 mi), shallow
Epicenter
48.311° N, 121.887° 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, 0.1 km in depth
Magnitude uncertainty
±0.04
Depth from
Operator assigned
Station coverage gap
62°
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: 20 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 1.95 km NE of Oso, Washington · 8837 days ago · -1 km deep · 1 km away
  2. 1.79 km N of Rockport, Washington · 8834 days ago · 3 km deep · 37 km away
  3. 1.5Washington · 8833 days ago · 3 km deep · 2 km away
  4. 1.78 km ENE of Marrowstone, Washington · 8833 days ago · 23 km deep · 58 km away
  5. 1.71 km S of Lochsloy, Washington · 8831 days ago · 0 km deep · 32 km away
  6. 2.63 km E of Port Hadlock-Irondale, Washington · 8828 days ago · 58 km deep · 70 km away
  7. 1.948 km WNW of Granite Falls, Washington · 8824 days ago · 4 km deep · 84 km away
  8. 2.04 km SW of Inglewood-Finn Hill, Washington · 8820 days ago · 21 km deep · 75 km away
  9. 1.85 km SSW of Sultan, Washington · 8816 days ago · 17 km deep · 55 km away
  10. 1.84 km NE of Edison, Washington · 8815 days ago · 12 km deep · 49 km away
  11. 1.93 km ENE of Granite Falls, Washington · 8804 days ago · -1 km deep · 25 km away
  12. 1.81 km NNW of Tukwila, Washington · 8801 days ago · 10 km deep · 96 km away
  13. 1.85 km E of North Stanwood, Washington · 8795 days ago · 0 km deep · 29 km away
  14. 1.62 km SE of Alger, Washington · 8793 days ago · 14 km deep · 46 km away
  15. 2.39 km NNE of Hamilton, Washington · 8783 days ago · -1 km deep · 33 km away
  16. 1.510 km N of Hamilton, Washington · 8783 days ago · 3 km deep · 34 km away
  17. 2.39 km N of Hamilton, Washington · 8783 days ago · -1 km deep · 33 km away
  18. 1.611 km NE of Snoqualmie, Washington · 8781 days ago · 5 km deep · 80 km away
  19. 1.71 km SSE of Lyman, Washington · 8780 days ago · -1 km deep · 26 km away
  20. 2.06 km NE of Snoqualmie, Washington · 8779 days ago · 11 km deep · 82 km away

Before

  1. 1.54 km N of Oso, Washington · 8837 days ago · 3 km deep · 3 km away
  2. 1.52 km N of Oso, Washington · 8844 days ago · 0 km deep · 3 km away
  3. 1.74 km NNE of Oso, Washington · 8844 days ago · 3 km deep · 2 km away
  4. 1.52 km E of Oso, Washington · 8849 days ago · 13 km deep · 4 km away
  5. 1.75 km NNE of Oso, Washington · 8851 days ago · 1 km deep · 2 km away
  6. 1.81 km E of North Creek, Washington · 8851 days ago · 23 km deep · 58 km away
  7. 2.17 km E of Deming, Washington · 8853 days ago · 11 km deep · 60 km away
  8. 1.62 km NE of Marrowstone, Washington · 8857 days ago · 31 km deep · 64 km away
  9. 1.74 km NW of Bryant, Washington · 8862 days ago · 12 km deep · 23 km away
  10. 1.94 km SSE of Carnation, Washington · 8864 days ago · 14 km deep · 78 km away
  11. 1.83 km NE of Fall City, Washington · 8866 days ago · 15 km deep · 81 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10564693. Read Wed, Sep 30, 2026, 8:44 PM UTC.