Washington earthquakes

M1.6 earthquake 6 km SSW of Acme, Washington

A magnitude 1.6 earthquake struck 6 km SSW of Acme, Washington on Sat, Apr 20, 1985, 7:14 PM PST (03:14 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M1.9 6 km ENE of Deming, 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
1.6 (md), micro
Local time
UTC
1985-04-21 03:14:15 UTC
Depth
-1.1 km (-0.7 mi), shallow
Epicenter
48.667° N, 122.247° 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, 5.1 km in depth
Magnitude uncertainty
±0.16
Depth from
Operator assigned
Station coverage gap
151°
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: 26 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 1.96 km ENE of Deming, Washington · 15127 days ago · 10 km deep · 21 km away
  2. 1.65 km NNW of Woods Creek, Washington · 15125 days ago · 15 km deep · 86 km away
  3. 1.74 km SSE of Monroe, Washington · 15125 days ago · -1 km deep · 97 km away
  4. 1.74 km SSW of Big Lake, Washington · 15124 days ago · 13 km deep · 34 km away
  5. 3.04 km SSW of Big Lake, Washington · 15124 days ago · 17 km deep · 34 km away
  6. 1.94 km SSW of Big Lake, Washington · 15120 days ago · 18 km deep · 34 km away
  7. 3.35 km SSW of Big Lake, Washington · 15120 days ago · 17 km deep · 34 km away
  8. 2.45 km SSW of Big Lake, Washington · 15120 days ago · 17 km deep · 34 km away
  9. 2.04 km NNW of Lake McMurray, Washington · 15120 days ago · 17 km deep · 35 km away
  10. 1.65 km SE of Monroe, Washington · 15118 days ago · -1 km deep · 97 km away
  11. 2.84 km NW of Kingston, Washington · 15117 days ago · 22 km deep · 96 km away
  12. 2.03 km NW of Kingston, Washington · 15117 days ago · 21 km deep · 96 km away
  13. 2.24 km NW of Kingston, Washington · 15116 days ago · 21 km deep · 96 km away
  14. 1.97 km E of Deming, Washington · 15113 days ago · 9 km deep · 21 km away
  15. 1.55 km E of Deming, Washington · 15113 days ago · 5 km deep · 20 km away
  16. 1.86 km S of Kendall, Washington · 15111 days ago · 3 km deep · 23 km away
  17. 2.25 km ENE of Deming, Washington · 15111 days ago · 0 km deep · 21 km away
  18. 2.614 km E of North Saanich, Canada · 15106 days ago · 21 km deep · 72 km away
  19. 1.88 km E of Deming, Washington · 15105 days ago · 14 km deep · 22 km away
  20. 1.54 km S of Big Lake, Washington · 15093 days ago · 15 km deep · 34 km away
  21. 1.6Washington · 15093 days ago · 14 km deep · 34 km away
  22. 1.54 km WSW of Richmond, Canada · 15089 days ago · 57 km deep · 88 km away
  23. 2.16 km NE of Lake Roesiger, Washington · 15084 days ago · 14 km deep · 76 km away
  24. 2.13 km SE of Lake Roesiger, Washington · 15080 days ago · 18 km deep · 83 km away
  25. 2.26 km SSE of Kendall, Washington · 15077 days ago · 12 km deep · 24 km away
  26. 1.64 km ENE of Granite Falls, Washington · 15074 days ago · -1 km deep · 69 km away

Before

  1. 1.816 km ESE of Verlot, Washington · 15130 days ago · 4 km deep · 86 km away
  2. 1.53 km WNW of North Sultan, Washington · 15132 days ago · 0 km deep · 90 km away
  3. 2.55 km E of Deming, Washington · 15133 days ago · 3 km deep · 20 km away
  4. 1.711 km SSE of Point Roberts, Washington · 15140 days ago · 56 km deep · 60 km away
  5. 1.70 km NW of Lake Roesiger, Washington · 15143 days ago · 13 km deep · 79 km away
  6. 2.53 km SE of Swede Heaven, Washington · 15146 days ago · 0 km deep · 60 km away
  7. 3.36 km WSW of Lake Cavanaugh, Washington · 15150 days ago · 11 km deep · 41 km away
  8. 2.01 km SSE of Swede Heaven, Washington · 15152 days ago · 1 km deep · 58 km away
  9. 1.59 km WNW of Ault Field, Washington · 15157 days ago · 48 km deep · 52 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10188493. Read Tue, Sep 22, 2026, 5:32 AM UTC.