Washington earthquakes

M1.8 earthquake 27 km N of Amboy, Washington

A magnitude 1.8 earthquake struck 27 km N of Amboy, Washington on Tue, Aug 25, 2026, 12:41 AM PDT (07:41 UTC), 6 km (4 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
1.8 (md), micro
Local time
UTC
2026-08-25 07:41:25 UTC
Depth
6.4 km (4.0 mi), shallow
Epicenter
46.153° N, 122.480° 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, 1.4 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
122°
Stations used
21

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. 1.66 km NE of Rochester, Washington · 27 days ago · 6 km deep · 90 km away
  2. 1.520 km S of Packwood, Washington · 23 days ago · 4 km deep · 73 km away
  3. 1.68 km E of Ashford, Washington · 23 days ago · -1 km deep · 80 km away
  4. 1.632 km N of Amboy, Washington · 19 days ago · 10 km deep · 10 km away
  5. 3.820 km E of Castle Rock, Washington · 17 days ago · 18 km deep · 16 km away · felt by 1,025
  6. 1.57 km NNE of Ashford, Washington · 10 days ago · 8 km deep · 83 km away
  7. 1.720 km E of Castle Rock, Washington · 6 days ago · 17 km deep · 16 km away
  8. 2.010 km SSE of Scappoose, Oregon · 5 days ago · 23 km deep · 60 km away
  9. 1.511 km NE of Ashford, Washington · 5 days ago · 5 km deep · 87 km away
  10. 2.725 km ENE of Yacolt, Washington · 4 days ago · 9 km deep · 37 km away
  11. 1.537 km NNE of Amboy, Washington · 2 days ago · -2 km deep · 22 km away
  12. 1.55 km SSW of Morton, Washington · 36 hr ago · 10 km deep · 42 km away
  13. 1.718 km N of Amboy, Washington · 15 hr ago · 10 km deep · 10 km away

Before

  1. 1.78 km E of Ashford, Washington · 31 days ago · 2 km deep · 80 km away
  2. 2.48 km E of Ashford, Washington · 31 days ago · 4 km deep · 80 km away · felt by 3
  3. 1.68 km SW of Vernonia, Oregon · 33 days ago · 0 km deep · 73 km away
  4. 2.337 km NNE of Amboy, Washington · 37 days ago · -2 km deep · 23 km away
  5. 2.223 km ENE of Ashford, Washington · 51 days ago · -1 km deep · 96 km away · felt by 1
  6. 1.50 km NNW of Eatonville, Washington · 54 days ago · 0 km deep · 82 km away
  7. 1.537 km NNE of Amboy, Washington · 55 days ago · 0 km deep · 23 km away
  8. 1.620 km E of Castle Rock, Washington · 57 days ago · 17 km deep · 16 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw714085662. Read Tue, Sep 22, 2026, 10:57 AM UTC.