Washington earthquakes

M1.8 earthquake 12 km E of Carnation, Washington

A magnitude 1.8 earthquake struck 12 km E of Carnation, Washington on Sat, Aug 18, 1990, 1:21 PM PDT (20:21 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M2.7 Washington. This one was a foreshock.

Carnation 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, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1990-08-18 20:21:08 UTC
Depth
-0.8 km (-0.5 mi), shallow
Epicenter
47.652° N, 121.749° 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 0.2 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
87°
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 23 in the 30 days before it.

After

  1. 1.61 km S of Normandy Park, Washington · 13189 days ago · 15 km deep · 51 km away
  2. 1.723 km N of Packwood, Washington · 13186 days ago · 3 km deep · 93 km away
  3. 1.517 km SSW of Skykomish, Washington · 13185 days ago · 95 km deep · 21 km away
  4. 2.02 km SSW of North Bend, Washington · 13183 days ago · -1 km deep · 20 km away
  5. 1.95 km WSW of Black Diamond, Washington · 13181 days ago · 20 km deep · 48 km away
  6. 1.64 km SSE of Bethel, Washington · 13180 days ago · 8 km deep · 68 km away
  7. 2.224 km N of Packwood, Washington · 13180 days ago · -1 km deep · 92 km away
  8. 2.47 km WNW of Allyn, Washington · 13179 days ago · 13 km deep · 92 km away
  9. 2.54 km W of Burley, Washington · 13178 days ago · 22 km deep · 76 km away
  10. 1.85 km SSW of Fall City, Washington · 13178 days ago · 14 km deep · 19 km away
  11. 2.46 km W of Lake Cavanaugh, Washington · 13177 days ago · 8 km deep · 79 km away
  12. 2.14 km ESE of Cathcart, Washington · 13176 days ago · 15 km deep · 30 km away
  13. 1.717 km ENE of Ashford, Washington · 13171 days ago · -1 km deep · 92 km away
  14. 1.524 km ENE of Ashford, Washington · 13171 days ago · -2 km deep · 88 km away
  15. 1.70 km ESE of Cottage Lake, Washington · 13167 days ago · 12 km deep · 26 km away
  16. 2.7Washington · 13166 days ago · 20 km deep · 97 km away
  17. 1.99 km ENE of Hoodsport, Washington · 13164 days ago · 7 km deep · 99 km away
  18. 1.525 km ENE of Ashford, Washington · 13162 days ago · -2 km deep · 87 km away
  19. 1.85 km WSW of Snoqualmie, Washington · 13162 days ago · 20 km deep · 19 km away
  20. 1.84 km WNW of Cliffdell, Washington · 13159 days ago · -1 km deep · 90 km away
  21. 1.60 km ENE of Mercer Island, Washington · 13154 days ago · 20 km deep · 36 km away
  22. 1.57 km NE of Duvall, Washington · 13148 days ago · 8 km deep · 19 km away
  23. 2.621 km ESE of Darrington, Washington · 13148 days ago · 0 km deep · 70 km away
  24. 1.51 km E of Clyde Hill, Washington · 13147 days ago · 24 km deep · 34 km away
  25. 1.83 km SW of Snoqualmie, Washington · 13140 days ago · 19 km deep · 19 km away
  26. 2.027 km ENE of Ashford, Washington · 13139 days ago · -2 km deep · 85 km away
  27. 1.640 km WNW of Granite Falls, Washington · 13135 days ago · 7 km deep · 92 km away

Before

  1. 1.83 km NNW of Kingston, Washington · 13194 days ago · 20 km deep · 61 km away
  2. 1.73 km E of Union Hill-Novelty Hill, Washington · 13194 days ago · 11 km deep · 17 km away
  3. 1.65 km NE of Bryant, Washington · 13195 days ago · 11 km deep · 75 km away
  4. 1.87 km SSE of Darrington, Washington · 13197 days ago · 4 km deep · 61 km away
  5. 1.73 km E of Granite Falls, Washington · 13197 days ago · 0 km deep · 50 km away
  6. 1.82 km WNW of Inglewood-Finn Hill, Washington · 13199 days ago · 21 km deep · 40 km away
  7. 1.58 km NW of Bangor Trident Base, Washington · 13199 days ago · 19 km deep · 78 km away
  8. 1.72 km SW of North Bend, Washington · 13201 days ago · -1 km deep · 20 km away
  9. 1.91 km ESE of Pacific, Washington · 13206 days ago · 10 km deep · 57 km away
  10. 1.89 km S of Carbonado, Washington · 13210 days ago · 12 km deep · 77 km away
  11. 1.539 km WNW of Granite Falls, Washington · 13210 days ago · 6 km deep · 90 km away
  12. 1.715 km ENE of Skykomish, Washington · 13211 days ago · 1 km deep · 45 km away
  13. 2.03 km ENE of Bainbridge Island, Washington · 13211 days ago · 18 km deep · 54 km away
  14. 1.53 km N of May Creek, Washington · 13213 days ago · 10 km deep · 27 km away
  15. 2.33 km WSW of Kingston, Washington · 13213 days ago · 19 km deep · 61 km away
  16. 2.34 km N of Vaughn, Washington · 13213 days ago · 22 km deep · 82 km away
  17. 3.023 km ENE of Ashford, Washington · 13215 days ago · -1 km deep · 88 km away
  18. 3.03 km ENE of Bainbridge Island, Washington · 13215 days ago · 22 km deep · 55 km away
  19. 2.12 km WSW of Normandy Park, Washington · 13217 days ago · 4 km deep · 53 km away
  20. 1.627 km SSE of Greenwater, Washington · 13219 days ago · 3 km deep · 83 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10264818. Read Fri, Oct 2, 2026, 7:24 AM UTC.