Washington earthquakes

M1.6 earthquake 3 km S of Seattle, Washington

A magnitude 1.6 earthquake struck 3 km S of Seattle, Washington on Sat, Jul 21, 2001, 7:59 PM PDT (02:59 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M4.3 4 km WSW of DuPont, 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
1.6 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2001-07-22 02:59:08 UTC
Depth
12.7 km (7.9 mi), shallow
Epicenter
47.577° N, 122.335° 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 1.3 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
75°
Stations used
12

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 8 in the 30 days before it.

After

  1. 4.34 km WSW of DuPont, Washington · 9202 days ago · 52 km deep · 60 km away · felt by 740
  2. 2.23 km NNW of Mirrormont, Washington · 9200 days ago · 16 km deep · 25 km away
  3. 2.02 km NNE of Redmond, Washington · 9197 days ago · 2 km deep · 21 km away
  4. 2.24 km SW of Shoreline, Washington · 9191 days ago · 27 km deep · 17 km away
  5. 1.53 km E of Oso, Washington · 9190 days ago · 14 km deep · 84 km away
  6. 1.54 km W of Gorst, Washington · 9181 days ago · 25 km deep · 33 km away
  7. 1.52 km E of Oso, Washington · 9180 days ago · 13 km deep · 84 km away
  8. 2.28 km NW of Seattle, Washington · 9178 days ago · 26 km deep · 11 km away
  9. 1.56 km S of Baring, Washington · 9178 days ago · 9 km deep · 66 km away
  10. 1.523 km ENE of Ashford, Washington · 9175 days ago · 0 km deep · 91 km away
  11. 1.81 km SSW of Auburn, Washington · 9174 days ago · 16 km deep · 32 km away
  12. 3.22 km SW of Darrington, Washington · 9174 days ago · 2 km deep · 91 km away
  13. 1.74 km WNW of Dash Point, Washington · 9174 days ago · 21 km deep · 29 km away
  14. 1.64 km SW of Darrington, Washington · 9173 days ago · 1 km deep · 89 km away
  15. 1.66 km SW of Darrington, Washington · 9168 days ago · 9 km deep · 87 km away
  16. 2.12 km S of Darrington, Washington · 9168 days ago · 2 km deep · 91 km away
  17. 1.73 km NNE of White Center, Washington · 9165 days ago · 30 km deep · 3 km away
  18. 2.73 km SW of Darrington, Washington · 9163 days ago · 4 km deep · 90 km away
  19. 2.115 km ESE of Carbonado, Washington · 9162 days ago · 16 km deep · 71 km away
  20. 2.32 km S of Coupeville, Washington · 9153 days ago · 56 km deep · 74 km away
  21. 2.34 km ESE of Union, Washington · 9152 days ago · 46 km deep · 60 km away
  22. 1.82 km NNW of Belfair, Washington · 9143 days ago · 24 km deep · 40 km away

Before

  1. 1.94 km SE of Burlington, Washington · 9211 days ago · 6 km deep · 97 km away
  2. 1.93 km SW of North Bend, Washington · 9211 days ago · 18 km deep · 40 km away
  3. 2.31 km NNE of Boulevard Park, Washington · 9217 days ago · 25 km deep · 8 km away
  4. 1.6Puget Sound region, Washington · 9218 days ago · 23 km deep · 8 km away
  5. 3.311 km NNE of Ashford, Washington · 9224 days ago · 6 km deep · 85 km away · felt by 20
  6. 1.60 km N of Newport, Washington · 9228 days ago · 22 km deep · 12 km away
  7. 1.74 km ENE of Carnation, Washington · 9229 days ago · 4 km deep · 37 km away
  8. 1.53 km W of Burley, Washington · 9231 days ago · 20 km deep · 31 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10541723. Read Thu, Oct 1, 2026, 9:34 AM UTC.