Washington earthquakes

M1.9 earthquake 5 km ENE of Lofall, Washington

A magnitude 1.9 earthquake struck 5 km ENE of Lofall, Washington on Thu, Jul 28, 1988, 2:57 AM PDT (09:57 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M3.1 5 km ENE of Anacortes, Washington. This one was a foreshock.

Lofall 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
1.9 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1988-07-28 09:57:01 UTC
Depth
20.7 km (12.9 mi), shallow
Epicenter
47.822° N, 122.589° 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 0.5 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
43°
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 26 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 1.81 km SE of Parkwood, Washington · 13945 days ago · 42 km deep · 33 km away
  2. 1.69 km NNE of Snoqualmie, Washington · 13944 days ago · 11 km deep · 67 km away
  3. 1.81 km SW of Burlington, Washington · 13941 days ago · 14 km deep · 74 km away
  4. 2.210 km SSE of Skykomish, Washington · 13940 days ago · 0 km deep · 100 km away
  5. 1.74 km ENE of Lake McMurray, Washington · 13934 days ago · 2 km deep · 65 km away
  6. 1.72 km NE of Midland, Washington · 13933 days ago · 26 km deep · 73 km away
  7. 1.516 km E of Verlot, Washington · 13932 days ago · 3 km deep · 82 km away
  8. 2.63 km NNE of Redmond, Washington · 13928 days ago · 13 km deep · 39 km away
  9. 2.67 km WSW of Wilderness Rim, Washington · 13926 days ago · 18 km deep · 70 km away
  10. 1.810 km W of Port Ludlow, Washington · 13926 days ago · 44 km deep · 21 km away
  11. 2.30 km ENE of Inglewood-Finn Hill, Washington · 13922 days ago · 14 km deep · 29 km away
  12. 1.81 km E of Black Diamond, Washington · 13916 days ago · 19 km deep · 73 km away
  13. 2.22 km SSE of Kirkland, Washington · 13913 days ago · 0 km deep · 34 km away
  14. 1.54 km SSW of Wilderness Rim, Washington · 13910 days ago · 28 km deep · 76 km away
  15. 2.913 km ESE of Friday Harbor, Washington · 13905 days ago · 27 km deep · 75 km away
  16. 1.75 km E of Granite Falls, Washington · 13904 days ago · -1 km deep · 60 km away
  17. 2.84 km NNE of Camano, Washington · 13904 days ago · 23 km deep · 43 km away
  18. 1.85 km W of Port Hadlock-Irondale, Washington · 13903 days ago · 20 km deep · 31 km away
  19. 2.43 km WSW of Wilderness Rim, Washington · 13899 days ago · 18 km deep · 72 km away
  20. 1.85 km SSE of Concrete, Washington · 13898 days ago · -1 km deep · 99 km away
  21. 2.31 km NW of Six Mile, Canada · 13897 days ago · 16 km deep · 97 km away
  22. 2.019 km ENE of Amanda Park, Washington · 13889 days ago · 33 km deep · 87 km away
  23. 2.05 km E of Anacortes, Washington · 13888 days ago · 17 km deep · 78 km away
  24. 3.15 km ENE of Anacortes, Washington · 13886 days ago · 15 km deep · 78 km away
  25. 1.55 km ENE of Anacortes, Washington · 13886 days ago · 16 km deep · 78 km away
  26. 1.55 km ENE of Anacortes, Washington · 13886 days ago · 18 km deep · 78 km away

Before

  1. 2.31 km ESE of Edmonds, Washington · 13952 days ago · 22 km deep · 17 km away
  2. 1.91 km WNW of Hansville, Washington · 13954 days ago · 13 km deep · 11 km away
  3. 1.53 km WSW of Artondale, Washington · 13956 days ago · 25 km deep · 60 km away
  4. 1.52 km NW of Woods Creek, Washington · 13956 days ago · 16 km deep · 50 km away
  5. 2.04 km NE of Duvall, Washington · 13959 days ago · 25 km deep · 48 km away
  6. 3.15 km W of Lake Cavanaugh, Washington · 13960 days ago · 12 km deep · 66 km away
  7. 1.91 km E of White Center, Washington · 13964 days ago · 23 km deep · 39 km away
  8. 3.218 km E of Verlot, Washington · 13966 days ago · -1 km deep · 84 km away
  9. 2.14 km WSW of Wilderness Rim, Washington · 13968 days ago · 18 km deep · 71 km away
  10. 2.14 km NNE of Key Center, Washington · 13969 days ago · 23 km deep · 50 km away
  11. 1.72 km W of Tanner, Washington · 13970 days ago · 17 km deep · 72 km away
  12. 2.34 km WSW of Darrington, Washington · 13973 days ago · 1 km deep · 83 km away
  13. 1.617 km ESE of Verlot, Washington · 13973 days ago · 2 km deep · 78 km away
  14. 2.24 km WSW of Darrington, Washington · 13973 days ago · 2 km deep · 83 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10236963. Read Sat, Oct 3, 2026, 5:49 AM UTC.