Washington earthquakes

M1.8 earthquake 1 km NW of Maple Valley, Washington

A magnitude 1.8 earthquake struck 1 km NW of Maple Valley, Washington on Tue, Oct 7, 2003, 6:26 PM PDT (01:26 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M2.4 2 km NW of Warm Beach, 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
2003-10-08 01:26:38 UTC
Depth
11.0 km (6.8 mi), shallow
Epicenter
47.399° N, 122.058° 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, 1.4 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
88°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.50 km ENE of Maple Valley, Washington · 8394 days ago · 9 km deep · 2 km away
  2. 1.62 km NE of Fall City, Washington · 8390 days ago · 7 km deep · 25 km away
  3. 1.71 km WSW of Mountlake Terrace, Washington · 8387 days ago · 18 km deep · 47 km away
  4. 1.510 km ESE of Riverbend, Washington · 8386 days ago · 12 km deep · 32 km away
  5. 1.65 km WSW of Belfair, Washington · 8385 days ago · 21 km deep · 63 km away
  6. 2.33 km S of Fall City, Washington · 8377 days ago · 18 km deep · 19 km away
  7. 1.60 km SW of Navy Yard City, Washington · 8371 days ago · 17 km deep · 49 km away
  8. 1.68 km SSW of Swede Heaven, Washington · 8361 days ago · 13 km deep · 93 km away
  9. 2.04 km SW of Fall City, Washington · 8359 days ago · 21 km deep · 18 km away
  10. 1.56 km ESE of Oso, Washington · 8358 days ago · 13 km deep · 95 km away
  11. 1.85 km WSW of Lofall, Washington · 8357 days ago · 58 km deep · 67 km away
  12. 1.73 km SW of Clinton, Washington · 8357 days ago · 32 km deep · 67 km away
  13. 2.01 km S of Mirrormont, Washington · 8347 days ago · 19 km deep · 7 km away
  14. 2.42 km NW of Warm Beach, Washington · 8345 days ago · 34 km deep · 91 km away
  15. 1.514 km NNE of Ashford, Washington · 8342 days ago · 9 km deep · 60 km away
  16. 1.55 km NNE of Woods Creek, Washington · 8339 days ago · 15 km deep · 60 km away
  17. 1.813 km E of Wilkeson, Washington · 8336 days ago · 17 km deep · 35 km away

Before

  1. 1.710 km SSE of Mineral, Washington · 8395 days ago · 16 km deep · 86 km away
  2. 1.911 km SE of Skykomish, Washington · 8396 days ago · 5 km deep · 64 km away
  3. 1.61 km NNW of Gig Harbor, Washington · 8398 days ago · 29 km deep · 41 km away
  4. 1.68 km NNW of Freeland, Washington · 8399 days ago · 57 km deep · 85 km away
  5. 1.61 km WNW of Maple Valley, Washington · 8399 days ago · 6 km deep · 1 km away
  6. 1.91 km WSW of Maple Valley, Washington · 8401 days ago · 8 km deep · 1 km away
  7. 1.78 km SW of Sultan, Washington · 8407 days ago · 9 km deep · 46 km away
  8. 1.55 km WSW of Hansville, Washington · 8410 days ago · 21 km deep · 70 km away
  9. 2.06 km NE of Fall City, Washington · 8411 days ago · 17 km deep · 29 km away
  10. 1.5Washington · 8412 days ago · 18 km deep · 77 km away
  11. 1.916 km WSW of Skokomish, Washington · 8415 days ago · 19 km deep · 99 km away
  12. 1.618 km ESE of Darrington, Washington · 8416 days ago · 7 km deep · 100 km away
  13. 1.84 km N of Lake Marcel-Stillwater, Washington · 8419 days ago · 6 km deep · 39 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10596548. Read Thu, Oct 1, 2026, 1:00 PM UTC.