Washington earthquakes

M1.6 earthquake 32 km N of Amboy, Washington

A magnitude 1.6 earthquake struck 32 km N of Amboy, Washington on Wed, Sep 2, 2026, 8:57 PM PDT (03:57 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.8 20 km E of Castle Rock, 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), micro
Local time
UTC
2026-09-03 03:57:04 UTC
Depth
10.2 km (6.3 mi), shallow
Epicenter
46.199° N, 122.373° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS. If you felt it, tell the USGS: every report sharpens the shaking map.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.5 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.35
Depth from
From location
Station coverage gap
184°, poorly surrounded by stations
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 since this one and 8 in the 30 days before it.

After

  1. 3.820 km E of Castle Rock, Washington · 25 days ago · 18 km deep · 21 km away · felt by 1,025
  2. 1.720 km E of Castle Rock, Washington · 13 days ago · 17 km deep · 21 km away
  3. 2.010 km SSE of Scappoose, Oregon · 13 days ago · 23 km deep · 69 km away
  4. 1.511 km NE of Ashford, Washington · 12 days ago · 5 km deep · 78 km away
  5. 2.227 km ENE of Yacolt, Washington · 11 days ago · 10 km deep · 35 km away · felt by 1
  6. 1.531 km E of Kelso, Washington · 10 days ago · 14 km deep · 10 km away
  7. 1.537 km NNE of Amboy, Washington · 10 days ago · -2 km deep · 14 km away
  8. 1.55 km SSW of Morton, Washington · 9 days ago · 10 km deep · 35 km away
  9. 1.718 km N of Amboy, Washington · 8 days ago · 10 km deep · 15 km away
  10. 2.13 km NNW of Kapowsin, Washington · 7 days ago · 1 km deep · 91 km away
  11. 2.038 km NNE of Amboy, Washington · 4 days ago · 0 km deep · 15 km away
  12. 2.623 km N of Trout Lake, Washington · 47 hr ago · -1 km deep · 66 km away · felt by 2
  13. 1.638 km NNE of Amboy, Washington · 9 hr ago · 3 km deep · 14 km away

Before

  1. 1.68 km E of Ashford, Washington · 30 days ago · -1 km deep · 71 km away
  2. 1.520 km S of Packwood, Washington · 31 days ago · 4 km deep · 63 km away
  3. 1.66 km NE of Rochester, Washington · 34 days ago · 6 km deep · 90 km away
  4. 1.827 km N of Amboy, Washington · 36 days ago · 6 km deep · 10 km away
  5. 1.78 km E of Ashford, Washington · 38 days ago · 2 km deep · 71 km away
  6. 2.48 km E of Ashford, Washington · 39 days ago · 4 km deep · 71 km away · felt by 3
  7. 1.68 km SW of Vernonia, Oregon · 40 days ago · 0 km deep · 83 km away
  8. 2.337 km NNE of Amboy, Washington · 44 days ago · -2 km deep · 14 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw714094292. Read Tue, Sep 29, 2026, 10:47 PM UTC.