Washington earthquakes

M1.7 earthquake 12 km SSW of Alder, Washington

A magnitude 1.7 earthquake struck 12 km SSW of Alder, Washington on Wed, Dec 31, 2025, 7:30 PM PST (03:30 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M2.4 4 km SSW of Gorst, Washington. This one was a foreshock.

Morton 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
1.7 (ML, local (Richter)), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2026-01-01 03:30:14 UTC
Depth
17.5 km (10.9 mi), shallow
Epicenter
46.696° N, 122.346° 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
±0.11
Depth from
From location
Station coverage gap
35°
Stations used
60

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. 1.68 km SSW of Grapeview, Washington · 274 days ago · 23 km deep · 76 km away
  2. 1.85 km ESE of Mossyrock, Washington · 268 days ago · 20 km deep · 20 km away
  3. 1.95 km ESE of Mossyrock, Washington · 267 days ago · 20 km deep · 20 km away
  4. 1.87 km ESE of Mossyrock, Washington · 264 days ago · 17 km deep · 22 km away
  5. 1.54 km ESE of Mossyrock, Washington · 262 days ago · 20 km deep · 21 km away
  6. 2.44 km SSW of Gorst, Washington · 261 days ago · 24 km deep · 93 km away
  7. 2.35 km SW of Gorst, Washington · 261 days ago · 27 km deep · 93 km away
  8. 2.017 km WSW of Nile, Washington · 257 days ago · 1 km deep · 93 km away
  9. 1.617 km SW of Nile, Washington · 256 days ago · 9 km deep · 93 km away
  10. 1.50 km ESE of Browns Point, Washington · 246 days ago · 22 km deep · 67 km away · felt by 1
  11. 1.523 km N of Trout Lake, Washington · 239 days ago · 2 km deep · 84 km away
  12. 1.610 km ENE of Ashford, Washington · 234 days ago · 10 km deep · 35 km away
  13. 1.831 km ENE of Yacolt, Washington · 223 days ago · 5 km deep · 81 km away
  14. 1.87 km SE of Mineral, Washington · 221 days ago · 22 km deep · 18 km away
  15. 2.223 km NNW of Carson, Washington · 221 days ago · 6 km deep · 92 km away
  16. 1.87 km SE of Mineral, Washington · 216 days ago · 22 km deep · 18 km away
  17. 1.56 km SE of Mineral, Washington · 215 days ago · 21 km deep · 17 km away

Before

  1. 1.84 km ESE of McKenna, Washington · 275 days ago · 23 km deep · 28 km away · felt by 1
  2. 2.85 km W of Gorst, Washington · 281 days ago · 23 km deep · 98 km away · felt by 17
  3. 2.65 km WSW of Pe Ell, Washington · 286 days ago · 40 km deep · 80 km away · felt by 11
  4. 2.516 km NE of Ashford, Washington · 287 days ago · 7 km deep · 41 km away · felt by 1
  5. 1.54 km NE of Dash Point, Washington · 298 days ago · 18 km deep · 73 km away
  6. 1.91 km NNW of Mirrormont, Washington · 299 days ago · 23 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw62221106. Read Fri, Oct 2, 2026, 8:44 AM UTC.