Washington earthquakes

M1.5 earthquake 14 km NE of Ashford, Washington

A magnitude 1.5 earthquake struck 14 km NE of Ashford, Washington on Thu, Jul 28, 1988, 10:11 PM PDT (05:11 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M3.8 13 km NE of Ashford, Washington. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.5 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1988-07-29 05:11:40 UTC
Depth
9.2 km (5.7 mi), shallow
Epicenter
46.853° N, 121.900° 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 0.4 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
71°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 36 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 2.014 km NE of Ashford, Washington · 13943 days ago · 8 km deep · 0 km away
  2. 3.813 km NE of Ashford, Washington · 13943 days ago · 10 km deep · 1 km away
  3. 1.914 km NE of Ashford, Washington · 13943 days ago · 9 km deep · 0 km away
  4. 1.914 km NE of Ashford, Washington · 13943 days ago · 9 km deep · 0 km away
  5. 1.817 km NNE of Ashford, Washington · 13943 days ago · 4 km deep · 7 km away
  6. 1.714 km NE of Ashford, Washington · 13943 days ago · 9 km deep · 0 km away
  7. 1.813 km NE of Ashford, Washington · 13943 days ago · 9 km deep · 1 km away
  8. 1.69 km NNE of Snoqualmie, Washington · 13942 days ago · 11 km deep · 84 km away
  9. 1.813 km NE of Ashford, Washington · 13941 days ago · 7 km deep · 2 km away
  10. 1.514 km NE of Ashford, Washington · 13941 days ago · 9 km deep · 0 km away
  11. 2.210 km SSE of Skykomish, Washington · 13938 days ago · 0 km deep · 98 km away
  12. 2.111 km NE of Ashford, Washington · 13937 days ago · 6 km deep · 3 km away
  13. 1.513 km NE of Ashford, Washington · 13936 days ago · 9 km deep · 1 km away
  14. 1.720 km NE of Ashford, Washington · 13933 days ago · 8 km deep · 6 km away
  15. 1.820 km NE of Ashford, Washington · 13933 days ago · 9 km deep · 6 km away
  16. 1.72 km NE of Midland, Washington · 13931 days ago · 26 km deep · 52 km away
  17. 1.613 km NE of Ashford, Washington · 13930 days ago · 9 km deep · 1 km away
  18. 3.012 km NE of Ashford, Washington · 13929 days ago · 10 km deep · 2 km away
  19. 1.512 km NE of Ashford, Washington · 13929 days ago · 9 km deep · 2 km away
  20. 2.63 km NNE of Redmond, Washington · 13926 days ago · 13 km deep · 96 km away
  21. 2.413 km NNE of Ashford, Washington · 13925 days ago · 10 km deep · 3 km away
  22. 2.67 km WSW of Wilderness Rim, Washington · 13924 days ago · 18 km deep · 64 km away
  23. 2.30 km ENE of Inglewood-Finn Hill, Washington · 13920 days ago · 14 km deep · 100 km away
  24. 1.638 km NNE of Amboy, Washington · 13917 days ago · 3 km deep · 76 km away
  25. 1.625 km N of Trout Lake, Washington · 13916 days ago · -1 km deep · 76 km away
  26. 1.81 km E of Black Diamond, Washington · 13914 days ago · 19 km deep · 51 km away
  27. 1.520 km S of Morton, Washington · 13914 days ago · 10 km deep · 60 km away
  28. 2.22 km SSE of Kirkland, Washington · 13911 days ago · 0 km deep · 93 km away
  29. 1.614 km NE of Ashford, Washington · 13910 days ago · 9 km deep · 0 km away
  30. 1.71 km NNW of Elbe, Washington · 13908 days ago · 17 km deep · 25 km away
  31. 1.54 km SSW of Wilderness Rim, Washington · 13908 days ago · 28 km deep · 62 km away
  32. 1.614 km SSE of Ashford, Washington · 13906 days ago · 6 km deep · 23 km away
  33. 1.93 km ESE of Packwood, Washington · 13903 days ago · 0 km deep · 35 km away
  34. 2.137 km SSE of Morton, Washington · 13901 days ago · 10 km deep · 68 km away
  35. 1.518 km SSE of Greenwater, Washington · 13901 days ago · 9 km deep · 30 km away
  36. 2.43 km WSW of Wilderness Rim, Washington · 13897 days ago · 18 km deep · 65 km away

Before

  1. 1.514 km NE of Ashford, Washington · 13943 days ago · 9 km deep · 0 km away
  2. 4.113 km NE of Ashford, Washington · 13943 days ago · 11 km deep · 1 km away
  3. 1.81 km SE of Parkwood, Washington · 13943 days ago · 42 km deep · 91 km away
  4. 2.224 km ENE of Ashford, Washington · 13948 days ago · -1 km deep · 12 km away
  5. 1.737 km NNE of Amboy, Washington · 13950 days ago · 3 km deep · 76 km away
  6. 1.53 km WSW of Artondale, Washington · 13954 days ago · 25 km deep · 76 km away
  7. 1.713 km NW of Morton, Washington · 13957 days ago · 21 km deep · 45 km away
  8. 2.038 km NNE of Amboy, Washington · 13962 days ago · -1 km deep · 75 km away
  9. 1.91 km E of White Center, Washington · 13962 days ago · 23 km deep · 81 km away
  10. 2.14 km WSW of Wilderness Rim, Washington · 13966 days ago · 18 km deep · 65 km away
  11. 2.14 km NNE of Key Center, Washington · 13967 days ago · 23 km deep · 85 km away
  12. 1.72 km W of Tanner, Washington · 13968 days ago · 17 km deep · 70 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10237253. Read Thu, Oct 1, 2026, 4:07 AM UTC.