Washington earthquakes

M1.8 earthquake 6 km WSW of La Conner, Washington

A magnitude 1.8 earthquake struck 6 km WSW of La Conner, Washington on Thu, Nov 20, 2003, 3:15 AM PST (11:15 UTC), 62 km (39 mi) below the surface.

A larger quake followed: M3.6 1 km SSE of Enetai, Washington. This one was a foreshock.

La Conner 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
1.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2003-11-20 11:15:22 UTC
Depth
62.2 km (38.7 mi), shallow
Epicenter
48.372° N, 122.587° 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 0.9 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
68°
Stations used
29

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 1.77 km NNW of Anacortes, Washington · 8350 days ago · 14 km deep · 24 km away
  2. 2.42 km NW of Warm Beach, Washington · 8346 days ago · 34 km deep · 25 km away
  3. 1.55 km NNE of Woods Creek, Washington · 8340 days ago · 15 km deep · 73 km away
  4. 2.07 km ENE of Port Townsend, Washington · 8333 days ago · 24 km deep · 26 km away
  5. 2.08 km NNE of Ganges, Canada · 8331 days ago · 18 km deep · 89 km away
  6. 1.81 km WSW of Silverdale, Washington · 8325 days ago · 25 km deep · 82 km away
  7. 1.59 km SSW of Sultan, Washington · 8323 days ago · 7 km deep · 86 km away
  8. 1.55 km S of Lake Roesiger, Washington · 8311 days ago · 14 km deep · 69 km away
  9. 1.68 km ENE of Carnation, Washington · 8308 days ago · 15 km deep · 97 km away
  10. 1.91 km NNE of Oak Harbor, Washington · 8307 days ago · 19 km deep · 9 km away
  11. 2.18 km N of Edison, Washington · 8304 days ago · -1 km deep · 31 km away
  12. 2.77 km WNW of Alger, Washington · 8304 days ago · -1 km deep · 32 km away
  13. 1.80 km WNW of Woodway, Washington · 8296 days ago · 28 km deep · 65 km away
  14. 1.71 km NW of Woodway, Washington · 8296 days ago · 20 km deep · 65 km away
  15. 3.61 km SSE of Enetai, Washington · 8295 days ago · 55 km deep · 89 km away · felt by 885
  16. 1.60 km ESE of Sammamish, Washington · 8293 days ago · 16 km deep · 90 km away

Before

  1. 1.73 km SW of Clinton, Washington · 8357 days ago · 32 km deep · 48 km away
  2. 1.85 km WSW of Lofall, Washington · 8358 days ago · 58 km deep · 65 km away
  3. 1.56 km ESE of Oso, Washington · 8359 days ago · 13 km deep · 56 km away
  4. 1.68 km SSW of Swede Heaven, Washington · 8362 days ago · 13 km deep · 63 km away
  5. 1.711 km W of Coupeville, Washington · 8371 days ago · 15 km deep · 23 km away
  6. 1.60 km SW of Navy Yard City, Washington · 8372 days ago · 17 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10591993. Read Fri, Oct 2, 2026, 7:24 AM UTC.