Washington earthquakes

M2.4 earthquake 2 km NW of Birch Bay, Washington

A magnitude 2.4 earthquake struck 2 km NW of Birch Bay, Washington on Sun, Jun 23, 1985, 12:23 PM PDT (19:23 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M2.8 12 km ENE of Fairwinds, Canada. This one was a foreshock.

Birch Bay 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
2.4 (md), micro
Local time
UTC
1985-06-23 19:23:07 UTC
Depth
14.2 km (8.8 mi), shallow
Epicenter
48.930° N, 122.768° 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 0.5 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
57°
Stations used
29

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 1.615 km N of Glacier, Washington · 15063 days ago · 3 km deep · 61 km away
  2. 1.510 km N of Camano, Washington · 15063 days ago · 53 km deep · 76 km away
  3. 2.03 km N of Bryant, Washington · 15044 days ago · 15 km deep · 86 km away
  4. 1.54 km SSE of Lake McMurray, Washington · 15042 days ago · 13 km deep · 84 km away
  5. 1.53 km N of Bryant, Washington · 15040 days ago · 14 km deep · 86 km away
  6. 2.812 km ENE of Fairwinds, Canada · 15035 days ago · 70 km deep · 98 km away
  7. 3.36 km S of Oak Bay, Canada · 15029 days ago · 18 km deep · 71 km away
  8. 2.13 km SW of Everson, Washington · 15020 days ago · 14 km deep · 29 km away
  9. 1.90 km ENE of Acme, Washington · 15009 days ago · 15 km deep · 48 km away
  10. 1.52 km SE of Acme, Washington · 15009 days ago · -1 km deep · 50 km away
  11. 2.52 km ENE of Acme, Washington · 15009 days ago · 15 km deep · 49 km away
  12. 1.60 km ENE of Acme, Washington · 15009 days ago · 6 km deep · 48 km away
  13. 1.52 km ENE of Acme, Washington · 15008 days ago · 11 km deep · 49 km away
  14. 1.62 km NE of Acme, Washington · 15008 days ago · 8 km deep · 49 km away

Before

  1. 2.26 km SSE of Kendall, Washington · 15077 days ago · 12 km deep · 48 km away
  2. 1.54 km WSW of Richmond, Canada · 15089 days ago · 57 km deep · 40 km away
  3. 1.6Washington · 15093 days ago · 14 km deep · 74 km away
  4. 1.54 km S of Big Lake, Washington · 15093 days ago · 15 km deep · 74 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10198423. Read Tue, Sep 22, 2026, 9:38 AM UTC.