Washington earthquakes

M1.8 earthquake 0 km E of Algona, Washington

A magnitude 1.8 earthquake struck 0 km E of Algona, Washington on Wed, Jul 20, 2005, 11:28 AM PDT (18:28 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M2.9 4 km WSW of Quilcene, Washington. This one was a foreshock.

Algona 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
2005-07-20 18:28:43 UTC
Depth
18.4 km (11.4 mi), shallow
Epicenter
47.279° N, 122.246° 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 0.2 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
55°
Stations used
27

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 25 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 1.59 km NNW of Tanglewilde, Washington · 7742 days ago · 42 km deep · 48 km away
  2. 1.74 km SE of Bethel, Washington · 7733 days ago · 51 km deep · 33 km away
  3. 1.64 km NE of Lake Roesiger, Washington · 7733 days ago · 15 km deep · 86 km away
  4. 2.03 km W of Gorst, Washington · 7732 days ago · 21 km deep · 47 km away
  5. 1.53 km W of Federal Way, Washington · 7728 days ago · 19 km deep · 10 km away
  6. 2.024 km ENE of Ashford, Washington · 7717 days ago · -2 km deep · 63 km away
  7. 2.17 km ENE of Lake Roesiger, WA · 7711 days ago · 12 km deep · 87 km away
  8. 1.59 km NW of Morton, Washington · 7709 days ago · 12 km deep · 75 km away
  9. 1.53 km WNW of Onalaska, Washington · 7708 days ago · 20 km deep · 86 km away
  10. 2.16 km NE of Duvall, Washington · 7707 days ago · 20 km deep · 61 km away
  11. 2.17 km ENE of Quilcene, Washington · 7704 days ago · 22 km deep · 76 km away
  12. 2.02 km ENE of Granite Falls, Washington · 7704 days ago · -1 km deep · 93 km away
  13. 1.73 km SSE of Kingsgate, Washington · 7702 days ago · 2 km deep · 48 km away
  14. 1.84 km SW of Mirrormont, Washington · 7702 days ago · 20 km deep · 24 km away
  15. 1.50 km SW of Maple Valley, Washington · 7701 days ago · 4 km deep · 19 km away
  16. 1.81 km W of Maple Valley, Washington · 7701 days ago · 7 km deep · 19 km away
  17. 1.52 km W of Maple Valley, Washington · 7700 days ago · 7 km deep · 18 km away
  18. 1.84 km E of Dash Point, Washington · 7700 days ago · 28 km deep · 11 km away
  19. 1.82 km ENE of Granite Falls, Washington · 7696 days ago · -1 km deep · 93 km away
  20. 1.62 km WSW of Ronald, Washington · 7695 days ago · 9 km deep · 90 km away
  21. 1.51 km NNW of Maple Valley, Washington · 7694 days ago · 7 km deep · 20 km away
  22. 1.73 km E of Dash Point, Washington · 7694 days ago · 28 km deep · 11 km away
  23. 1.72 km SW of Erlands Point-Kitsap Lake, Washington · 7691 days ago · 19 km deep · 49 km away
  24. 2.94 km WSW of Quilcene, Washington · 7689 days ago · 49 km deep · 78 km away
  25. 1.83 km E of Dash Point, Washington · 7685 days ago · 22 km deep · 11 km away

Before

  1. 1.62 km ESE of Issaquah, Washington · 7744 days ago · 15 km deep · 33 km away
  2. 1.85 km WSW of Gorst, Washington · 7748 days ago · 22 km deep · 48 km away
  3. 1.59 km SSW of Port Hadlock-Irondale, Washington · 7753 days ago · 15 km deep · 88 km away
  4. 1.716 km E of Lake Marcel-Stillwater, Washington · 7755 days ago · 16 km deep · 62 km away
  5. 2.26 km NW of Picnic Point, Washington · 7755 days ago · 33 km deep · 72 km away
  6. 1.84 km ESE of Dash Point, Washington · 7761 days ago · 29 km deep · 10 km away
  7. 2.34 km SW of Woodway, Washington · 7761 days ago · 26 km deep · 57 km away
  8. 2.46 km NNW of Kingston, Washington · 7762 days ago · 26 km deep · 67 km away
  9. 2.25 km SE of Camano, Washington · 7762 days ago · 17 km deep · 97 km away
  10. 1.813 km NNE of Ashford, Washington · 7762 days ago · 4 km deep · 50 km away
  11. 2.01 km WSW of Maplewood, Washington · 7770 days ago · 50 km deep · 28 km away
  12. 1.92 km ENE of Granite Falls, Washington · 7774 days ago · -1 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10668328. Read Fri, Oct 2, 2026, 3:03 PM UTC.