Washington earthquakes

M1.8 earthquake 38 km NNE of Amboy, Washington

A magnitude 1.8 earthquake struck 38 km NNE of Amboy, Washington on Mon, Feb 10, 1986, 3:23 AM PST (11:23 UTC), -2 km (-1 mi) below the surface.

A larger quake followed: M2.1 38 km NNE of Amboy, 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
1.8 (md), micro
Local time
UTC
1986-02-10 11:23:40 UTC
Depth
-1.6 km (-1.0 mi), shallow
Epicenter
46.204° N, 122.190° 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 0.1 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.08
Depth from
Operator assigned
Station coverage gap
90°
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: 15 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.138 km NNE of Amboy, Washington · 14827 days ago · -1 km deep · 0 km away
  2. 1.632 km NE of Amboy, Washington · 14817 days ago · 3 km deep · 12 km away
  3. 1.933 km NE of Amboy, Washington · 14815 days ago · 5 km deep · 13 km away
  4. 1.738 km NNE of Amboy, Washington · 14813 days ago · -1 km deep · 0 km away
  5. 1.838 km NNE of Amboy, Washington · 14811 days ago · -2 km deep · 1 km away
  6. 2.638 km NNE of Amboy, Washington · 14809 days ago · -2 km deep · 0 km away
  7. 2.437 km NNE of Amboy, Washington · 14806 days ago · -1 km deep · 0 km away
  8. 3.14 km NE of Amboy, Washington · 14805 days ago · 13 km deep · 34 km away
  9. 1.833 km NE of Amboy, Washington · 14804 days ago · 3 km deep · 12 km away
  10. 1.95 km SW of La Grande, Washington · 14802 days ago · -1 km deep · 67 km away
  11. 1.538 km NNE of Amboy, Washington · 14801 days ago · -2 km deep · 0 km away
  12. 1.538 km NNE of Amboy, Washington · 14797 days ago · -1 km deep · 0 km away
  13. 1.86 km SSW of Morton, Washington · 14792 days ago · 19 km deep · 35 km away
  14. 1.6Washington · 14791 days ago · 4 km deep · 65 km away
  15. 1.53 km WNW of Ashford, Washington · 14785 days ago · 25 km deep · 64 km away

Before

  1. 1.638 km NNE of Amboy, Washington · 14841 days ago · -2 km deep · 0 km away
  2. 1.638 km NNE of Amboy, Washington · 14843 days ago · -2 km deep · 0 km away
  3. 1.812 km ENE of Yacolt, Washington · 14852 days ago · 6 km deep · 34 km away
  4. 1.620 km S of Morton, Washington · 14856 days ago · 8 km deep · 19 km away
  5. 1.637 km S of Morton, Washington · 14856 days ago · 0 km deep · 3 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10201878. Read Tue, Sep 22, 2026, 3:25 PM UTC.