Washington earthquakes

M1.8 earthquake 20 km W of Quilcene, Washington

A magnitude 1.8 earthquake struck 20 km W of Quilcene, Washington on Mon, Mar 8, 2004, 4:08 PM PST (00:08 UTC), 45 km (28 mi) below the surface.

A larger quake followed: M3.8 3 km SW of Clear Lake, 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
1.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2004-03-09 00:08:11 UTC
Depth
44.7 km (27.8 mi), shallow
Epicenter
47.820° N, 123.153° 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 0.5 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
81°
Stations used
26

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 2.52 km WSW of Orcas, Washington · 8235 days ago · 50 km deep · 86 km away
  2. 3.83 km SW of Clear Lake, Washington · 8234 days ago · 0 km deep · 96 km away · felt by 232
  3. 2.10 km NW of Big Lake, Washington · 8234 days ago · 0 km deep · 94 km away
  4. 1.63 km SW of Lake Marcel-Stillwater, Washington · 8218 days ago · 2 km deep · 91 km away
  5. 1.73 km NNW of Aberdeen Gardens, Washington · 8216 days ago · -1 km deep · 94 km away
  6. 2.15 km SW of Woodway, Washington · 8215 days ago · 26 km deep · 53 km away
  7. 1.83 km WSW of Des Moines, Washington · 8205 days ago · 23 km deep · 76 km away
  8. 1.61 km SSW of Ames Lake, Washington · 8202 days ago · 4 km deep · 91 km away
  9. 1.54 km W of Orcas, Washington · 8197 days ago · 13 km deep · 88 km away
  10. 1.95 km W of North Saanich, Canada · 8196 days ago · 20 km deep · 97 km away
  11. 2.55 km SW of Sultan, Washington · 8195 days ago · 17 km deep · 96 km away
  12. 2.32 km SSE of Maple Heights-Lake Desire, Washington · 8190 days ago · 22 km deep · 92 km away
  13. 1.94 km ESE of Lake Marcel-Stillwater, Washington · 8190 days ago · 13 km deep · 98 km away

Before

  1. 1.74 km W of Ketron, Washington · 8246 days ago · 9 km deep · 82 km away
  2. 1.611 km N of Jamestown, Washington · 8253 days ago · 26 km deep · 46 km away
  3. 2.65 km W of Hoodsport, Washington · 8256 days ago · 45 km deep · 46 km away
  4. 1.63 km E of La Conner, Washington · 8258 days ago · 0 km deep · 82 km away
  5. 1.86 km ENE of Allyn, Washington · 8264 days ago · 25 km deep · 56 km away
  6. 1.73 km SSW of Hoodsport, Washington · 8265 days ago · 46 km deep · 49 km away
  7. 1.94 km ESE of Cathcart, Washington · 8267 days ago · 28 km deep · 83 km away
  8. 1.86 km W of Conway, Washington · 8269 days ago · 10 km deep · 80 km away
  9. 2.44 km ESE of La Conner, Washington · 8270 days ago · -1 km deep · 81 km away
  10. 1.621 km SSW of Blyn, Washington · 8272 days ago · 45 km deep · 5 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10599373. Read Fri, Oct 2, 2026, 7:27 AM UTC.