Washington earthquakes

M2.2 earthquake 4 km E of Cathcart, Washington

A magnitude 2.2 earthquake struck 4 km E of Cathcart, Washington on Tue, May 17, 1977, 2:22 PM PDT (21:22 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.0 4 km N of Bangor Trident Base, Washington. This one was a foreshock.

Cathcart 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, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1977-05-17 21:22:24 UTC
Depth
3.2 km (2.0 mi), shallow
Epicenter
47.852° N, 122.041° 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 4.0 km horizontally, 7.7 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
191°, poorly surrounded by stations
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 30 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.34 km NNW of Swede Heaven, Washington · 18030 days ago · 1 km deep · 56 km away
  2. 2.33 km WSW of Wilderness Rim, Washington · 18027 days ago · 18 km deep · 50 km away
  3. 2.27 km NW of Kingston, Washington · 18022 days ago · 44 km deep · 39 km away
  4. 2.15 km SW of Gorst, Washington · 18019 days ago · 20 km deep · 67 km away
  5. 1.91 km SW of White Center, Washington · 18019 days ago · 24 km deep · 46 km away
  6. 1.94 km WNW of Wilderness Rim, Washington · 18018 days ago · 23 km deep · 47 km away
  7. 2.420 km NNE of Index, Washington · 18014 days ago · 4 km deep · 45 km away
  8. 2.13 km N of Bonney Lake, Washington · 18009 days ago · 3 km deep · 72 km away
  9. 2.24 km NNE of Bonney Lake, Washington · 18009 days ago · 6 km deep · 72 km away
  10. 2.12 km S of Lakeland North, Washington · 18008 days ago · 8 km deep · 63 km away
  11. 1.80 km N of Normandy Park, Washington · 18007 days ago · 18 km deep · 51 km away
  12. 4.04 km N of Bangor Trident Base, Washington · 18004 days ago · 19 km deep · 52 km away
  13. 2.04 km WNW of Northwest Stanwood, Washington · 18003 days ago · 21 km deep · 55 km away
  14. 2.81 km NNW of Wauna, Washington · 18002 days ago · 44 km deep · 69 km away
  15. 2.318 km ESE of Carbonado, Washington · 18002 days ago · -1 km deep · 97 km away
  16. 2.13 km N of Bonney Lake, Washington · 18001 days ago · 2 km deep · 72 km away
  17. 1.510 km NW of Belfair, Washington · 18001 days ago · 24 km deep · 75 km away
  18. 1.52 km W of Mercer Island, Washington · 17999 days ago · 0 km deep · 35 km away
  19. 1.83 km NNE of Bonney Lake, Washington · 17999 days ago · 7 km deep · 73 km away
  20. 1.56 km WNW of Belfair, Washington · 17998 days ago · 18 km deep · 77 km away
  21. 1.71 km NNE of Bonney Lake, Washington · 17997 days ago · 14 km deep · 74 km away
  22. 1.77 km SE of Orcas, Washington · 17993 days ago · 0 km deep · 99 km away
  23. 2.10 km SSE of Bryant, Washington · 17990 days ago · 0 km deep · 43 km away
  24. 3.63 km ENE of Edison, Washington · 17981 days ago · 12 km deep · 85 km away
  25. 1.56 km NNE of Duvall, Washington · 17979 days ago · 24 km deep · 9 km away
  26. 2.710 km NE of Snoqualmie, Washington · 17978 days ago · 7 km deep · 38 km away
  27. 2.25 km SSE of Seabeck, Washington · 17978 days ago · 12 km deep · 63 km away
  28. 1.711 km SE of Carbonado, Washington · 17977 days ago · 5 km deep · 95 km away
  29. 1.96 km ESE of Edison, Washington · 17976 days ago · 5 km deep · 80 km away
  30. 3.34 km N of Duvall, Washington · 17976 days ago · 23 km deep · 9 km away

Before

  1. 3.05 km S of Quilcene, Washington · 18044 days ago · 45 km deep · 62 km away
  2. 2.33 km ENE of Enetai, Washington · 18045 days ago · 11 km deep · 48 km away
  3. 2.00 km NW of North Puyallup, Washington · 18050 days ago · 15 km deep · 74 km away
  4. 1.910 km SSW of Seabeck, Washington · 18050 days ago · 16 km deep · 71 km away
  5. 1.60 km W of Port Ludlow, Washington · 18053 days ago · -1 km deep · 49 km away
  6. 1.87 km SE of Enumclaw, Washington · 18054 days ago · 19 km deep · 78 km away
  7. 1.92 km ESE of Dash Point, Washington · 18063 days ago · 12 km deep · 66 km away
  8. 1.74 km WSW of White Center, Washington · 18063 days ago · 21 km deep · 48 km away
  9. 2.12 km E of Dash Point, Washington · 18063 days ago · 12 km deep · 65 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10843698. Read Fri, Oct 2, 2026, 6:21 AM UTC.