Washington earthquakes

M1.6 earthquake Washington

A magnitude 1.6 earthquake struck in Washington on Tue, Oct 25, 1988, 11:40 PM PDT (06:40 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M2.7 8 km ESE of Enumclaw, Washington. This one was a foreshock.

Eatonville 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
1.6 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1988-10-26 06:40:07 UTC
Depth
1.2 km (0.8 mi), shallow
Epicenter
46.742° N, 121.865° 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 0.3 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
57°
Stations used
26

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.95 km SSW of Wilderness Rim, Washington · 13849 days ago · 20 km deep · 73 km away
  2. 2.07 km WSW of Wilderness Rim, Washington · 13847 days ago · 19 km deep · 77 km away
  3. 1.72 km ENE of Home, Washington · 13846 days ago · 27 km deep · 89 km away
  4. 1.519 km NNE of Ashford, Washington · 13844 days ago · 13 km deep · 21 km away
  5. 1.79 km NE of Ashford, Washington · 13843 days ago · 5 km deep · 10 km away
  6. 2.226 km S of Morton, Washington · 13842 days ago · 8 km deep · 54 km away
  7. 1.94 km E of Hobart, Washington · 13840 days ago · 3 km deep · 75 km away
  8. 1.56 km ENE of Mossyrock, Washington · 13840 days ago · 21 km deep · 47 km away
  9. 1.513 km NE of Ashford, WA · 13839 days ago · 9 km deep · 12 km away
  10. 1.63 km NNW of Mossyrock, Washington · 13838 days ago · 19 km deep · 53 km away
  11. 1.98 km SSE of Carbonado, Washington · 13833 days ago · 2 km deep · 32 km away
  12. 2.210 km NE of Nile, Washington · 13825 days ago · 0 km deep · 80 km away
  13. 1.938 km NNE of Amboy, Washington · 13820 days ago · 0 km deep · 65 km away
  14. 1.51 km WSW of Issaquah, Washington · 13819 days ago · -1 km deep · 88 km away
  15. 1.538 km NE of Amboy, Washington · 13818 days ago · 25 km deep · 66 km away
  16. 2.16 km SSW of Packwood, Washington · 13813 days ago · 8 km deep · 24 km away
  17. 1.68 km ESE of Enumclaw, Washington · 13809 days ago · 13 km deep · 47 km away
  18. 2.78 km ESE of Enumclaw, Washington · 13809 days ago · 14 km deep · 48 km away
  19. 1.89 km ESE of Enumclaw, Washington · 13809 days ago · 13 km deep · 47 km away
  20. 1.631 km NE of Amboy, Washington · 13801 days ago · 8 km deep · 76 km away

Before

  1. 1.614 km SSE of Ashford, Washington · 13858 days ago · 8 km deep · 13 km away
  2. 1.66 km W of Wilderness Rim, Washington · 13859 days ago · 18 km deep · 77 km away
  3. 1.62 km SSE of Klahanie, Washington · 13862 days ago · 14 km deep · 91 km away
  4. 2.112 km W of Easton, Washington · 13864 days ago · 2 km deep · 69 km away
  5. 1.88 km WSW of Packwood, Washington · 13866 days ago · 10 km deep · 18 km away
  6. 2.437 km NNE of Amboy, Washington · 13866 days ago · 0 km deep · 66 km away
  7. 1.73 km ESE of Ravensdale, Washington · 13868 days ago · 9 km deep · 66 km away
  8. 1.79 km NE of Snoqualmie, Washington · 13869 days ago · 5 km deep · 94 km away
  9. 1.61 km NNE of White Center, Washington · 13869 days ago · 23 km deep · 95 km away
  10. 1.738 km NNE of Amboy, Washington · 13871 days ago · 4 km deep · 65 km away
  11. 1.512 km WSW of Packwood, Washington · 13877 days ago · 7 km deep · 20 km away
  12. 1.56 km NNE of Bonney Lake, Washington · 13879 days ago · 18 km deep · 59 km away
  13. 2.333 km NE of Amboy, Washington · 13880 days ago · 0 km deep · 71 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10236588. Read Fri, Oct 2, 2026, 10:31 AM UTC.