Washington earthquakes

M1.8 earthquake 5 km SW of Gorst, Washington

A magnitude 1.8 earthquake struck 5 km SW of Gorst, Washington on Thu, Apr 17, 2003, 5:57 PM PDT (00:57 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M4.8 26 km W of Brinnon, Washington. This one was a foreshock.

Gorst 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
2003-04-18 00:57:46 UTC
Depth
20.6 km (12.8 mi), shallow
Epicenter
47.488° N, 122.752° 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 0.4 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
101°
Stations used
37

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 10 in the 30 days before it.

After

  1. 1.616 km SSE of Carbonado, Washington · 8565 days ago · 5 km deep · 85 km away
  2. 4.826 km W of Brinnon, Washington · 8560 days ago · 51 km deep · 43 km away · felt by 673
  3. 2.925 km W of Brinnon, Washington · 8560 days ago · 49 km deep · 42 km away
  4. 1.80 km WSW of Bellevue, Washington · 8546 days ago · 29 km deep · 43 km away
  5. 1.83 km S of Skokomish, Washington · 8546 days ago · 45 km deep · 36 km away
  6. 1.75 km N of Dash Point, Washington · 8545 days ago · 19 km deep · 29 km away
  7. 1.7Washington · 8535 days ago · 15 km deep · 83 km away
  8. 1.73 km SE of Lake Roesiger, Washington · 8530 days ago · 9 km deep · 83 km away
  9. 1.66 km SW of Coupeville, Washington · 8527 days ago · 24 km deep · 77 km away
  10. 2.513 km SSW of Snoqualmie Pass, WA · 8526 days ago · 16 km deep · 97 km away
  11. 3.74 km SSW of Gorst, Washington · 8525 days ago · 25 km deep · 2 km away · felt by 1,560
  12. 1.63 km N of Dash Point, Washington · 8525 days ago · 22 km deep · 29 km away
  13. 1.95 km SE of Wilderness Rim, Washington · 8524 days ago · 11 km deep · 79 km away
  14. 1.5Puget Sound region, Washington · 8523 days ago · 23 km deep · 2 km away
  15. 1.519 km W of Brinnon, Washington · 8521 days ago · 15 km deep · 36 km away
  16. 1.85 km WSW of Seattle, Washington · 8521 days ago · 26 km deep · 29 km away

Before

  1. 1.811 km NE of Snoqualmie, Washington · 8568 days ago · 13 km deep · 80 km away
  2. 2.72 km NE of Redmond, Washington · 8568 days ago · 14 km deep · 54 km away
  3. 1.92 km NW of Eastmont, Washington · 8569 days ago · 21 km deep · 62 km away
  4. 1.53 km WSW of Eastmont, Washington · 8570 days ago · 19 km deep · 60 km away
  5. 2.11 km NE of Keyport, Washington · 8570 days ago · 24 km deep · 27 km away
  6. 1.76 km N of Belfair, Washington · 8577 days ago · 23 km deep · 7 km away
  7. 1.54 km W of Wauna, Washington · 8588 days ago · 27 km deep · 12 km away
  8. 1.91 km E of Granite Falls, Washington · 8589 days ago · 0 km deep · 90 km away
  9. 1.56 km SSW of Hansville, Washington · 8597 days ago · 27 km deep · 43 km away
  10. 1.76 km WNW of Wauna, Washington · 8597 days ago · 20 km deep · 9 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10581608. Read Thu, Oct 1, 2026, 7:24 AM UTC.