Washington earthquakes

M1.7 earthquake 7 km NNW of Anacortes, Washington

A magnitude 1.7 earthquake struck 7 km NNW of Anacortes, Washington on Fri, Nov 21, 2003, 12:28 PM PST (20:28 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M2.7 7 km WNW of Alger, Washington. This one was a foreshock.

Anacortes 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
2003-11-21 20:28:00 UTC
Depth
13.7 km (8.5 mi), shallow
Epicenter
48.581° N, 122.636° 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 0.6 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
91°
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: 10 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.42 km NW of Warm Beach, Washington · 8348 days ago · 34 km deep · 47 km away
  2. 1.55 km NNE of Woods Creek, Washington · 8342 days ago · 15 km deep · 93 km away
  3. 2.07 km ENE of Port Townsend, Washington · 8335 days ago · 24 km deep · 48 km away
  4. 2.08 km NNE of Ganges, Canada · 8333 days ago · 18 km deep · 71 km away
  5. 1.55 km S of Lake Roesiger, Washington · 8312 days ago · 14 km deep · 89 km away
  6. 1.91 km NNE of Oak Harbor, Washington · 8309 days ago · 19 km deep · 31 km away
  7. 2.18 km N of Edison, Washington · 8306 days ago · -1 km deep · 15 km away
  8. 2.77 km WNW of Alger, Washington · 8306 days ago · -1 km deep · 16 km away
  9. 1.80 km WNW of Woodway, Washington · 8298 days ago · 28 km deep · 89 km away
  10. 1.71 km NW of Woodway, Washington · 8297 days ago · 20 km deep · 88 km away

Before

  1. 1.86 km WSW of La Conner, Washington · 8354 days ago · 62 km deep · 24 km away
  2. 1.73 km SW of Clinton, Washington · 8359 days ago · 32 km deep · 71 km away
  3. 1.85 km WSW of Lofall, Washington · 8360 days ago · 58 km deep · 87 km away
  4. 1.56 km ESE of Oso, Washington · 8361 days ago · 13 km deep · 69 km away
  5. 1.68 km SSW of Swede Heaven, Washington · 8364 days ago · 13 km deep · 76 km away
  6. 1.711 km W of Coupeville, Washington · 8372 days ago · 15 km deep · 41 km away
  7. 1.932 km NNE of Marblemount, WA · 8373 days ago · -1 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10592138. Read Sun, Oct 4, 2026, 12:22 AM UTC.