Washington earthquakes

M2.2 earthquake 2 km S of Monroe, Washington

A magnitude 2.2 earthquake struck 2 km S of Monroe, Washington on Tue, Feb 1, 1977, 2:42 PM PST (22:42 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M2.6 6 km S of Sultan, Washington. This one was a foreshock.

Monroe 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
2.2 (md), micro
Local time
UTC
1977-02-01 22:42:47 UTC
Depth
12.7 km (7.9 mi), shallow
Epicenter
47.836° N, 121.968° 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 1.7 km horizontally, 3.1 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
112°
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 34 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 2.08 km NNE of Tanner, Washington · 18130 days ago · -1 km deep · 39 km away
  2. 2.28 km NE of North Bend, Washington · 18129 days ago · 10 km deep · 36 km away
  3. 1.82 km E of Edmonds, Washington · 18125 days ago · 19 km deep · 28 km away
  4. 1.92 km SSE of Issaquah, Washington · 18123 days ago · -1 km deep · 37 km away
  5. 2.66 km S of Sultan, Washington · 18122 days ago · 16 km deep · 13 km away
  6. 2.23 km NNE of Duvall, Washington · 18122 days ago · 22 km deep · 7 km away
  7. 2.03 km SE of Shoreline, Washington · 18120 days ago · 15 km deep · 28 km away
  8. 1.91 km WNW of SeaTac, Washington · 18113 days ago · 23 km deep · 50 km away
  9. 2.31 km NW of Lake Forest Park, Washington · 18111 days ago · 22 km deep · 26 km away
  10. 1.78 km NNE of Snoqualmie, Washington · 18110 days ago · 3 km deep · 31 km away
  11. 1.8Washington · 18104 days ago · 10 km deep · 33 km away
  12. 2.315 km WSW of Greenwater, Washington · 18098 days ago · 8 km deep · 82 km away
  13. 2.6Puget Sound region, Washington · 18096 days ago · 21 km deep · 78 km away
  14. 2.44 km ESE of Hobart, Washington · 18091 days ago · 12 km deep · 47 km away
  15. 1.57 km SSE of Blyn, Washington · 18091 days ago · 20 km deep · 75 km away
  16. 1.71 km SSW of Federal Way, Washington · 18090 days ago · 20 km deep · 64 km away
  17. 2.1Washington · 18090 days ago · 9 km deep · 37 km away
  18. 2.26 km E of Hobart, Washington · 18089 days ago · 13 km deep · 48 km away
  19. 1.76 km SSE of Wilderness Rim, Washington · 18089 days ago · 26 km deep · 52 km away
  20. 2.24 km N of Woods Creek, Washington · 18089 days ago · 9 km deep · 11 km away
  21. 2.1Puget Sound region, Washington · 18088 days ago · 64 km deep · 59 km away
  22. 2.12 km ESE of Issaquah, Washington · 18087 days ago · 31 km deep · 35 km away
  23. 1.65 km WNW of White Center, Washington · 18086 days ago · 21 km deep · 47 km away
  24. 2.316 km SE of Carbonado, Washington · 18085 days ago · 16 km deep · 96 km away
  25. 2.12 km SSE of Dash Point, Washington · 18082 days ago · 14 km deep · 68 km away
  26. 1.78 km NNE of Lake Marcel-Stillwater, Washington · 18081 days ago · 12 km deep · 12 km away
  27. 1.9Puget Sound region, Washington · 18080 days ago · 25 km deep · 59 km away
  28. 2.22 km S of Lake Roesiger, Washington · 18077 days ago · 8 km deep · 14 km away
  29. 2.33 km NNE of Bonney Lake, Washington · 18077 days ago · 8 km deep · 72 km away
  30. 2.82 km N of Bonney Lake, Washington · 18077 days ago · 13 km deep · 72 km away
  31. 2.02 km SSW of Bonney Lake, Washington · 18077 days ago · 25 km deep · 77 km away
  32. 2.01 km SSW of Suquamish, Washington · 18072 days ago · 5 km deep · 46 km away
  33. 1.611 km NE of Snoqualmie, Washington · 18070 days ago · 13 km deep · 32 km away
  34. 2.24 km ENE of Bonney Lake, WA · 18070 days ago · 24 km deep · 72 km away

Before

  1. 1.52 km W of White Center, Washington · 18132 days ago · 22 km deep · 47 km away
  2. 2.89 km NE of Snoqualmie, Washington · 18132 days ago · 10 km deep · 31 km away
  3. 2.29 km NE of Snoqualmie, Washington · 18133 days ago · 8 km deep · 32 km away
  4. 1.99 km NE of Snoqualmie, Washington · 18133 days ago · 0 km deep · 32 km away
  5. 1.87 km SW of Verlot, Washington · 18134 days ago · -1 km deep · 25 km away
  6. 1.98 km ESE of Hobart, Washington · 18136 days ago · 4 km deep · 51 km away
  7. 1.94 km SSE of Seattle, Washington · 18138 days ago · 18 km deep · 39 km away
  8. 2.010 km NE of Snoqualmie, Washington · 18147 days ago · 8 km deep · 32 km away
  9. 2.013 km NNE of Tanner, Washington · 18147 days ago · 12 km deep · 37 km away
  10. 2.39 km N of Greenwater, Washington · 18151 days ago · 14 km deep · 70 km away
  11. 2.22 km ENE of Lake Marcel-Stillwater, Washington · 18153 days ago · 23 km deep · 17 km away
  12. 1.93 km WSW of White Center, Washington · 18155 days ago · 29 km deep · 49 km away
  13. 2.25 km W of Gorst, Washington · 18156 days ago · 19 km deep · 70 km away
  14. 1.917 km SE of Friday Harbor, Washington · 18157 days ago · 47 km deep · 93 km away
  15. 2.02 km NW of Indianola, Washington · 18158 days ago · 19 km deep · 44 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10843113. Read Tue, Sep 22, 2026, 3:52 PM UTC.