Washington earthquakes

M1.6 earthquake 21 km E of Kelso, Washington

A magnitude 1.6 earthquake struck 21 km E of Kelso, Washington on Sat, Nov 10, 1990, 8:35 PM PST (04:35 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M2.3 8 km NW of Longview Heights, 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, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1990-11-11 04:35:09 UTC
Depth
13.4 km (8.3 mi), shallow
Epicenter
46.141° N, 122.634° 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, 0.5 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
107°
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 1.55 km SW of Pe Ell, Washington · 13107 days ago · 25 km deep · 70 km away
  2. 1.838 km NNE of Amboy, Washington · 13105 days ago · -2 km deep · 35 km away
  3. 2.38 km NW of Longview Heights, Washington · 13097 days ago · 23 km deep · 32 km away
  4. 1.837 km NNE of Amboy, Washington · 13094 days ago · 0 km deep · 34 km away
  5. 1.638 km NNE of Amboy, Washington · 13091 days ago · 0 km deep · 35 km away
  6. 1.84 km SSE of Mossyrock, Washington · 13084 days ago · 19 km deep · 40 km away
  7. 1.637 km NNE of Amboy, Washington · 13069 days ago · -1 km deep · 35 km away
  8. 2.136 km NNE of Amboy, Washington · 13069 days ago · 1 km deep · 34 km away
  9. 1.638 km NNE of Amboy, Washington · 13069 days ago · 0 km deep · 35 km away
  10. 1.738 km NNE of Amboy, Washington · 13069 days ago · 0 km deep · 35 km away
  11. 1.638 km NNE of Amboy, Washington · 13069 days ago · -1 km deep · 35 km away
  12. 1.538 km NNE of Amboy, Washington · 13068 days ago · 0 km deep · 35 km away
  13. 2.18 km N of Bethany, Oregon · 13062 days ago · 17 km deep · 59 km away
  14. 1.720 km S of Packwood, Washington · 13058 days ago · -1 km deep · 84 km away
  15. 1.538 km NNE of Amboy, Washington · 13057 days ago · 2 km deep · 35 km away
  16. 1.84 km SSE of Walnut Grove, Washington · 13056 days ago · 17 km deep · 57 km away
  17. 1.938 km NNE of Amboy, Washington · 13054 days ago · 2 km deep · 35 km away

Before

  1. 1.923 km S of Morton, Washington · 13110 days ago · 7 km deep · 38 km away
  2. 2.036 km S of Morton, Washington · 13114 days ago · 0 km deep · 36 km away
  3. 1.615 km ESE of Kapowsin, Washington · 13121 days ago · 6 km deep · 97 km away
  4. 2.315 km ESE of Kapowsin, Washington · 13121 days ago · 6 km deep · 97 km away
  5. 1.738 km NNE of Amboy, Washington · 13125 days ago · -2 km deep · 35 km away
  6. 1.736 km NNE of Amboy, Washington · 13125 days ago · -2 km deep · 34 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10267273. Read Fri, Oct 2, 2026, 2:41 AM UTC.