Washington earthquakes

M-0.5 earthquake 22 km ENE of Ashford, Washington

A magnitude -0.5 earthquake struck 22 km ENE of Ashford, Washington on Sun, Sep 20, 2026, 3:16 AM PDT (10:16 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M2.0 3 km ESE of East Renton Highlands, 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
-0.5 (md), micro
Local time
UTC
2026-09-20 10:16:30 UTC
Depth
-0.0 km (-0.0 mi), shallow
Epicenter
46.847° N, 121.766° 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 0.2 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.30
Depth from
From location
Station coverage gap
76°
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: 4 since this one and 17 in the 30 days before it.

After

  1. 2.03 km ESE of East Renton Highlands, Washington · 45 hr ago · 14 km deep · 74 km away
  2. 1.55 km SSW of Morton, Washington · 40 hr ago · 10 km deep · 56 km away
  3. 1.718 km N of Amboy, Washington · 19 hr ago · 10 km deep · 100 km away
  4. 2.45 km SW of Wilderness Rim, Washington · 8 hr ago · 19 km deep · 64 km away · felt by 10

Before

  1. 1.537 km NNE of Amboy, Washington · 3 days ago · -2 km deep · 79 km away
  2. 1.511 km NE of Ashford, Washington · 5 days ago · 5 km deep · 12 km away
  3. 1.720 km E of Castle Rock, Washington · 6 days ago · 17 km deep · 95 km away
  4. 2.14 km SW of Wilderness Rim, Washington · 6 days ago · 21 km deep · 63 km away · felt by 2
  5. 1.57 km NNE of Ashford, Washington · 10 days ago · 8 km deep · 17 km away
  6. 1.710 km ESE of Riverbend, Washington · 12 days ago · 13 km deep · 65 km away
  7. 1.617 km SSW of Nile, Washington · 14 days ago · 9 km deep · 56 km away
  8. 3.820 km E of Castle Rock, Washington · 17 days ago · 18 km deep · 95 km away · felt by 1,025
  9. 2.14 km NNE of Snoqualmie, Washington · 19 days ago · 18 km deep · 80 km away · felt by 4
  10. 1.632 km N of Amboy, Washington · 19 days ago · 10 km deep · 86 km away
  11. 1.68 km E of Ashford, Washington · 23 days ago · -1 km deep · 15 km away
  12. 1.520 km S of Packwood, Washington · 24 days ago · 4 km deep · 48 km away
  13. 1.61 km NNE of Maple Valley, Washington · 24 days ago · 16 km deep · 65 km away
  14. 1.66 km NE of Rochester, Washington · 27 days ago · 6 km deep · 98 km away
  15. 1.827 km N of Amboy, Washington · 28 days ago · 6 km deep · 95 km away
  16. 1.78 km E of Ashford, Washington · 31 days ago · 2 km deep · 16 km away
  17. 2.48 km E of Ashford, Washington · 31 days ago · 4 km deep · 15 km away · felt by 3

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw714005263. Read Tue, Sep 22, 2026, 3:14 PM UTC.