Washington earthquakes

M1.6 earthquake 38 km NE of Amboy, Washington

A magnitude 1.6 earthquake struck 38 km NE of Amboy, Washington on Mon, Sep 24, 1990, 5:56 PM PDT (00:56 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.9 3 km ENE of Kelso, Washington. This one was a foreshock.

Amboy 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
1990-09-25 00:56:35 UTC
Depth
-1.3 km (-0.8 mi), shallow
Epicenter
46.195° N, 122.163° 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
±0.15
Depth from
Operator assigned
Station coverage gap
147°
Stations used
7

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 19 in the 30 days before it.

After

  1. 2.93 km ENE of Kelso, Washington · 13152 days ago · 22 km deep · 54 km away
  2. 2.63 km ENE of Kelso, Washington · 13152 days ago · 21 km deep · 54 km away
  3. 1.65 km ESE of West Side Highway, Washington · 13150 days ago · 19 km deep · 53 km away
  4. 2.15 km NW of Mount Hood, Oregon · 13148 days ago · 5 km deep · 81 km away
  5. 2.019 km S of Morton, Washington · 13148 days ago · 19 km deep · 23 km away
  6. 2.027 km ENE of Ashford, Washington · 13139 days ago · -2 km deep · 84 km away
  7. 1.724 km SE of Carbonado, Washington · 13125 days ago · -1 km deep · 88 km away
  8. 1.736 km NNE of Amboy, Washington · 13124 days ago · -2 km deep · 2 km away
  9. 1.738 km NNE of Amboy, Washington · 13124 days ago · -2 km deep · 3 km away
  10. 2.315 km ESE of Kapowsin, Washington · 13121 days ago · 6 km deep · 80 km away
  11. 1.615 km ESE of Kapowsin, Washington · 13121 days ago · 6 km deep · 80 km away
  12. 1.926 km ENE of Ashford, Washington · 13118 days ago · -2 km deep · 84 km away
  13. 2.036 km S of Morton, Washington · 13114 days ago · 0 km deep · 5 km away
  14. 1.923 km S of Morton, Washington · 13110 days ago · 7 km deep · 18 km away
  15. 1.88 km NNE of Government Camp, Oregon · 13109 days ago · 3 km deep · 99 km away
  16. 1.621 km E of Kelso, Washington · 13109 days ago · 13 km deep · 37 km away
  17. 1.55 km SW of Pe Ell, Washington · 13107 days ago · 25 km deep · 98 km away
  18. 1.723 km ENE of Ashford, Washington · 13106 days ago · -2 km deep · 80 km away
  19. 1.838 km NNE of Amboy, Washington · 13105 days ago · -2 km deep · 2 km away
  20. 2.38 km NW of Longview Heights, Washington · 13097 days ago · 23 km deep · 66 km away

Before

  1. 2.638 km NNE of Amboy, Washington · 13156 days ago · 0 km deep · 2 km away
  2. 1.614 km NNW of Amboy, Washington · 13159 days ago · 19 km deep · 33 km away
  3. 1.525 km ENE of Ashford, Washington · 13162 days ago · -2 km deep · 82 km away
  4. 2.237 km NNE of Amboy, Washington · 13164 days ago · -2 km deep · 2 km away
  5. 2.7Washington · 13165 days ago · 20 km deep · 70 km away
  6. 1.537 km NNE of Amboy, Washington · 13170 days ago · 5 km deep · 2 km away
  7. 1.524 km ENE of Ashford, Washington · 13170 days ago · -2 km deep · 81 km away
  8. 1.717 km ENE of Ashford, Washington · 13170 days ago · -1 km deep · 75 km away
  9. 2.04 km E of Mossyrock, Washington · 13171 days ago · 20 km deep · 42 km away
  10. 2.337 km NNE of Amboy, Washington · 13172 days ago · -1 km deep · 2 km away
  11. 1.537 km NE of Amboy, Washington · 13175 days ago · 14 km deep · 14 km away
  12. 1.637 km NNE of Amboy, Washington · 13176 days ago · 0 km deep · 2 km away
  13. 1.838 km NNE of Amboy, Washington · 13179 days ago · 0 km deep · 2 km away
  14. 2.138 km NNE of Amboy, Washington · 13179 days ago · 0 km deep · 2 km away
  15. 1.537 km NNE of Amboy, Washington · 13179 days ago · 1 km deep · 3 km away
  16. 2.224 km N of Packwood, Washington · 13179 days ago · -1 km deep · 78 km away
  17. 1.538 km NNE of Amboy, Washington · 13182 days ago · 2 km deep · 2 km away
  18. 1.723 km N of Packwood, Washington · 13186 days ago · 3 km deep · 77 km away
  19. 1.537 km NNE of Amboy, Washington · 13186 days ago · 3 km deep · 2 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10265833. Read Thu, Oct 1, 2026, 9:11 PM UTC.