Washington earthquakes

M1.8 earthquake 11 km NE of Snoqualmie, Washington

A magnitude 1.8 earthquake struck 11 km NE of Snoqualmie, Washington on Thu, Apr 17, 2003, 3:32 AM PDT (10:32 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M3.7 4 km SSW of Gorst, Washington. This one was a foreshock.

Snoqualmie 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
2003-04-17 10:32:44 UTC
Depth
12.9 km (8.0 mi), shallow
Epicenter
47.591° N, 121.697° 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 0.7 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
43°
Stations used
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 1.85 km SW of Gorst, Washington · 8567 days ago · 21 km deep · 80 km away
  2. 1.616 km SSE of Carbonado, Washington · 8565 days ago · 5 km deep · 75 km away
  3. 1.80 km WSW of Bellevue, Washington · 8546 days ago · 29 km deep · 38 km away
  4. 1.75 km N of Dash Point, Washington · 8545 days ago · 19 km deep · 60 km away
  5. 1.7Washington · 8535 days ago · 15 km deep · 12 km away
  6. 1.73 km SE of Lake Roesiger, Washington · 8530 days ago · 9 km deep · 44 km away
  7. 2.22 km SSE of Big Lake, Washington · 8528 days ago · 15 km deep · 96 km away
  8. 2.513 km SSW of Snoqualmie Pass, WA · 8526 days ago · 16 km deep · 37 km away
  9. 3.74 km SSW of Gorst, Washington · 8525 days ago · 25 km deep · 78 km away · felt by 1,560
  10. 1.63 km N of Dash Point, Washington · 8525 days ago · 22 km deep · 61 km away
  11. 1.95 km SE of Wilderness Rim, Washington · 8524 days ago · 11 km deep · 20 km away
  12. 1.5Puget Sound region, Washington · 8523 days ago · 23 km deep · 78 km away
  13. 1.85 km WSW of Seattle, Washington · 8520 days ago · 26 km deep · 52 km away
  14. 1.524 km ENE of Ashford, Washington · 8511 days ago · -2 km deep · 79 km away

Before

  1. 2.72 km NE of Redmond, Washington · 8568 days ago · 14 km deep · 32 km away
  2. 1.92 km NW of Eastmont, Washington · 8569 days ago · 21 km deep · 53 km away
  3. 1.53 km WSW of Eastmont, Washington · 8570 days ago · 19 km deep · 51 km away
  4. 2.11 km NE of Keyport, Washington · 8570 days ago · 24 km deep · 70 km away
  5. 1.76 km N of Belfair, Washington · 8577 days ago · 23 km deep · 86 km away
  6. 1.97 km SSE of Leavenworth, Washington · 8581 days ago · 6 km deep · 80 km away
  7. 1.54 km W of Wauna, Washington · 8588 days ago · 27 km deep · 79 km away
  8. 1.91 km E of Granite Falls, Washington · 8589 days ago · 0 km deep · 58 km away
  9. 1.56 km SSW of Hansville, Washington · 8597 days ago · 27 km deep · 73 km away
  10. 1.76 km WNW of Wauna, Washington · 8597 days ago · 20 km deep · 80 km away
  11. 2.51 km NNW of Enetai, Washington · 8598 days ago · 27 km deep · 68 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10581463. Read Thu, Oct 1, 2026, 6:49 AM UTC.