Washington earthquakes

M1.9 earthquake 7 km SSE of Concrete, Washington

A magnitude 1.9 earthquake struck 7 km SSE of Concrete, Washington on Tue, Aug 18, 2026, 5:01 AM PDT (12:01 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M2.6 2 km ENE of Mount Vernon, Washington. This one was a foreshock.

Concrete 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
1.9 (ml), micro
Local time
UTC
2026-08-18 12:01:01 UTC
Depth
5.8 km (3.6 mi), shallow
Epicenter
48.480° N, 121.712° 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 0.3 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
100°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 7 since this one and 13 in the 30 days before it.

After

  1. 1.72 km NNE of May Creek, Washington · 41 days ago · 4 km deep · 68 km away
  2. 1.62 km ESE of Oak Harbor, Washington · 35 days ago · 24 km deep · 70 km away
  3. 1.815 km ESE of Acme, Washington · 34 days ago · 0 km deep · 30 km away
  4. 2.62 km ENE of Mount Vernon, Washington · 19 days ago · 14 km deep · 44 km away · felt by 10
  5. 1.63 km WSW of Lake Cavanaugh, Washington · 16 days ago · 12 km deep · 32 km away
  6. 2.110 km ENE of Fall City, Washington · 8 days ago · 16 km deep · 96 km away · felt by 1
  7. 1.70 km W of Lake Stickney, Washington · 7 days ago · 23 km deep · 79 km away

Before

  1. 1.68 km S of Port Hadlock-Irondale, Washington · 45 days ago · 11 km deep · 100 km away
  2. 1.52 km WNW of Ames Lake, Washington · 47 days ago · 11 km deep · 96 km away
  3. 1.92 km NNE of Lyman, Washington · 47 days ago · 5 km deep · 26 km away
  4. 1.88 km N of Maple Falls, Washington · 49 days ago · -1 km deep · 63 km away
  5. 1.62 km E of Oak Harbor, Washington · 57 days ago · 24 km deep · 70 km away
  6. 2.13 km E of Oak Harbor, Washington · 60 days ago · 26 km deep · 69 km away
  7. 1.73 km E of Oak Harbor, Washington · 60 days ago · 25 km deep · 69 km away
  8. 1.73 km N of Lyman, Washington · 61 days ago · 5 km deep · 27 km away
  9. 2.22 km N of Lyman, Washington · 61 days ago · 6 km deep · 27 km away · felt by 1
  10. 2.210 km NNE of Startup, Washington · 62 days ago · 0 km deep · 58 km away · felt by 4
  11. 2.13 km ESE of Oak Harbor, Washington · 65 days ago · 25 km deep · 69 km away
  12. 1.65 km N of Anacortes, Washington · 67 days ago · 15 km deep · 68 km away
  13. 2.13 km E of Oak Harbor, Washington · 70 days ago · 26 km deep · 69 km away · felt by 2

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw714081141. Read Wed, Sep 30, 2026, 7:15 PM UTC.