Washington earthquakes

M1.5 earthquake 26 km S of Morton, Washington

A magnitude 1.5 earthquake struck 26 km S of Morton, Washington on Fri, Jun 8, 1990, 11:35 AM PDT (18:35 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.0 23 km ENE of Ashford, Washington. This one was a foreshock.

Morton 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
1.5 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1990-06-08 18:35:03 UTC
Depth
8.2 km (5.1 mi), shallow
Epicenter
46.324° N, 122.234° 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, 0.1 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
50°
Stations used
23

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 16 in the 30 days before it.

After

  1. 1.528 km ENE of Ashford, Washington · 13263 days ago · -2 km deep · 75 km away
  2. 1.737 km NNE of Amboy, Washington · 13258 days ago · -1 km deep · 14 km away
  3. 1.737 km NNE of Amboy, Washington · 13255 days ago · 2 km deep · 14 km away
  4. 1.937 km NNE of Amboy, Washington · 13246 days ago · 5 km deep · 15 km away
  5. 1.810 km SW of Packwood, Washington · 13246 days ago · 8 km deep · 43 km away
  6. 1.525 km ENE of Ashford, Washington · 13245 days ago · 0 km deep · 71 km away
  7. 2.338 km NNE of Amboy, Washington · 13244 days ago · 4 km deep · 14 km away
  8. 2.433 km NE of Amboy, Washington · 13242 days ago · 0 km deep · 21 km away
  9. 1.738 km NNE of Amboy, Washington · 13235 days ago · -2 km deep · 14 km away
  10. 2.13 km ENE of Bonney Lake, Washington · 13226 days ago · 16 km deep · 96 km away
  11. 1.938 km NNE of Amboy, Washington · 13225 days ago · 0 km deep · 15 km away
  12. 1.522 km ENE of Ashford, Washington · 13224 days ago · -2 km deep · 69 km away
  13. 1.738 km NNE of Amboy, Washington · 13224 days ago · 0 km deep · 14 km away
  14. 1.827 km SSE of Greenwater, Washington · 13218 days ago · 3 km deep · 84 km away
  15. 1.627 km SSE of Greenwater, Washington · 13218 days ago · 3 km deep · 84 km away
  16. 3.023 km ENE of Ashford, Washington · 13214 days ago · -1 km deep · 70 km away
  17. 1.89 km S of Carbonado, Washington · 13209 days ago · 12 km deep · 76 km away
  18. 1.612 km N of Mossyrock, Washington · 13208 days ago · 20 km deep · 40 km away
  19. 2.012 km S of Ashford, Washington · 13207 days ago · 12 km deep · 39 km away
  20. 1.737 km NNE of Amboy, Washington · 13204 days ago · -2 km deep · 15 km away

Before

  1. 2.0Washington · 13270 days ago · 0 km deep · 14 km away
  2. 1.94 km E of Carson, Washington · 13270 days ago · 4 km deep · 75 km away
  3. 1.74 km E of Carson, Washington · 13270 days ago · 4 km deep · 76 km away
  4. 2.023 km ENE of Ashford, Washington · 13271 days ago · -1 km deep · 69 km away
  5. 1.738 km NNE of Amboy, Washington · 13272 days ago · -1 km deep · 14 km away
  6. 1.738 km NNE of Amboy, Washington · 13272 days ago · -2 km deep · 14 km away
  7. 1.838 km NNE of Amboy, Washington · 13273 days ago · -2 km deep · 14 km away
  8. 1.737 km NNE of Amboy, Washington · 13274 days ago · -2 km deep · 14 km away
  9. 1.838 km NNE of Amboy, Washington · 13277 days ago · -1 km deep · 14 km away
  10. 1.92 km ESE of Alder, Washington · 13278 days ago · 17 km deep · 52 km away
  11. 1.823 km S of Morton, Washington · 13278 days ago · 11 km deep · 2 km away
  12. 2.623 km ENE of Ashford, Washington · 13279 days ago · -2 km deep · 70 km away
  13. 2.224 km S of Morton, Washington · 13283 days ago · 3 km deep · 2 km away
  14. 1.514 km NE of Ashford, Washington · 13285 days ago · 7 km deep · 62 km away
  15. 2.913 km SSW of Morton, Washington · 13285 days ago · 18 km deep · 15 km away
  16. 1.538 km NNE of Amboy, Washington · 13291 days ago · -2 km deep · 14 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10258568. Read Thu, Oct 1, 2026, 3:12 PM UTC.