Washington earthquakes

M1.8 earthquake 7 km SE of Enumclaw, Washington

A magnitude 1.8 earthquake struck 7 km SE of Enumclaw, Washington on Thu, Apr 28, 1977, 12:19 AM PDT (07:19 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M1.9 10 km SSW of Seabeck, Washington. This one was a foreshock.

Enumclaw 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), micro
Local time
UTC
1977-04-28 07:19:56 UTC
Depth
19.0 km (11.8 mi), shallow
Epicenter
47.156° N, 121.924° 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, 0.9 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
125°
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: 32 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 1.910 km SSW of Seabeck, Washington · 18040 days ago · 16 km deep · 84 km away
  2. 2.00 km NW of North Puyallup, Washington · 18040 days ago · 15 km deep · 28 km away
  3. 3.229 km S of Morton, Washington · 18037 days ago · 6 km deep · 98 km away
  4. 2.33 km ENE of Enetai, Washington · 18035 days ago · 11 km deep · 69 km away
  5. 3.05 km S of Quilcene, Washington · 18034 days ago · 45 km deep · 99 km away
  6. 2.218 km NNE of Ashford, Washington · 18025 days ago · 8 km deep · 27 km away
  7. 2.24 km E of Cathcart, Washington · 18024 days ago · 3 km deep · 78 km away
  8. 2.66 km SSW of Morton, Washington · 18020 days ago · 19 km deep · 78 km away
  9. 2.33 km WSW of Wilderness Rim, Washington · 18017 days ago · 18 km deep · 32 km away
  10. 2.27 km NW of Kingston, Washington · 18012 days ago · 44 km deep · 90 km away
  11. 3.06 km SSW of Morton, Washington · 18012 days ago · 24 km deep · 78 km away
  12. 2.15 km SW of Gorst, Washington · 18009 days ago · 20 km deep · 73 km away
  13. 1.91 km SW of White Center, Washington · 18009 days ago · 24 km deep · 52 km away
  14. 1.94 km WNW of Wilderness Rim, Washington · 18008 days ago · 23 km deep · 35 km away
  15. 2.69 km SSW of Morton, Washington · 18004 days ago · 0 km deep · 81 km away
  16. 2.420 km NNE of Index, Washington · 18004 days ago · 4 km deep · 99 km away
  17. 2.13 km N of Bonney Lake, Washington · 17999 days ago · 3 km deep · 20 km away
  18. 2.24 km NNE of Bonney Lake, Washington · 17998 days ago · 6 km deep · 20 km away
  19. 2.12 km S of Lakeland North, Washington · 17998 days ago · 8 km deep · 32 km away
  20. 1.80 km N of Normandy Park, Washington · 17997 days ago · 18 km deep · 45 km away
  21. 4.04 km N of Bangor Trident Base, Washington · 17994 days ago · 19 km deep · 90 km away
  22. 2.81 km NNW of Wauna, Washington · 17992 days ago · 44 km deep · 61 km away
  23. 2.47 km SE of Mineral, Washington · 17992 days ago · 16 km deep · 56 km away
  24. 2.318 km ESE of Carbonado, Washington · 17991 days ago · -1 km deep · 19 km away
  25. 2.13 km N of Bonney Lake, Washington · 17991 days ago · 2 km deep · 21 km away
  26. 1.510 km NW of Belfair, Washington · 17991 days ago · 24 km deep · 85 km away
  27. 2.427 km SSE of Morton, Washington · 17990 days ago · 8 km deep · 95 km away
  28. 1.52 km W of Mercer Island, Washington · 17989 days ago · 0 km deep · 52 km away
  29. 1.83 km NNE of Bonney Lake, Washington · 17988 days ago · 7 km deep · 19 km away
  30. 1.56 km WNW of Belfair, Washington · 17988 days ago · 18 km deep · 82 km away
  31. 2.221 km ENE of Packwood, Washington · 17988 days ago · 2 km deep · 64 km away
  32. 1.71 km NNE of Bonney Lake, Washington · 17986 days ago · 14 km deep · 19 km away

Before

  1. 1.92 km ESE of Dash Point, Washington · 18052 days ago · 12 km deep · 40 km away
  2. 1.74 km WSW of White Center, Washington · 18052 days ago · 21 km deep · 53 km away
  3. 2.12 km E of Dash Point, Washington · 18053 days ago · 12 km deep · 40 km away
  4. 2.04 km N of White Center, Washington · 18059 days ago · 2 km deep · 55 km away
  5. 1.94 km NE of Bonney Lake, Washington · 18061 days ago · 24 km deep · 17 km away
  6. 2.1Washington · 18065 days ago · 17 km deep · 27 km away
  7. 2.2Washington · 18066 days ago · 19 km deep · 18 km away
  8. 2.42 km NNE of Bonney Lake, Washington · 18067 days ago · 18 km deep · 20 km away
  9. 2.24 km ENE of Bonney Lake, WA · 18069 days ago · 24 km deep · 17 km away
  10. 1.611 km NE of Snoqualmie, Washington · 18070 days ago · 13 km deep · 52 km away
  11. 2.01 km SSW of Suquamish, Washington · 18071 days ago · 5 km deep · 79 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10843563. Read Tue, Sep 22, 2026, 12:03 AM UTC.