Washington earthquakes

M2.4 earthquake 8 km SE of Glacier, Washington

A magnitude 2.4 earthquake struck 8 km SE of Glacier, Washington on Fri, Apr 18, 1986, 2:08 AM PST (10:08 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.0 5 km ENE of Ferndale, 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
2.4 (md), micro
Local time
UTC
1986-04-18 10:08:04 UTC
Depth
0.3 km (0.2 mi), shallow
Epicenter
48.839° N, 121.868° 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 4.0 km horizontally, 2.8 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
230°, poorly surrounded by stations
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 18 in the 30 days before it.

After

  1. 3.05 km ENE of Ferndale, Washington · 14765 days ago · 17 km deep · 48 km away
  2. 1.57 km NNE of Lake Cavanaugh, Washington · 14752 days ago · 2 km deep · 51 km away
  3. 1.7Washington · 14745 days ago · 1 km deep · 64 km away
  4. 2.55 km W of Edison, Washington · 14715 days ago · 7 km deep · 57 km away
  5. 3.323 km WSW of Princeton, Canada · 14714 days ago · 18 km deep · 97 km away
  6. 1.55 km N of Friday Harbor, Washington · 14710 days ago · 49 km deep · 90 km away

Before

  1. 1.52 km SSW of Swede Heaven, Washington · 14772 days ago · 3 km deep · 64 km away
  2. 1.72 km SSW of Swede Heaven, Washington · 14772 days ago · 2 km deep · 65 km away
  3. 1.72 km SSW of Swede Heaven, Washington · 14772 days ago · 3 km deep · 65 km away
  4. 1.82 km S of Swede Heaven, Washington · 14773 days ago · 0 km deep · 65 km away
  5. 2.310 km NW of Friday Harbor, Washington · 14775 days ago · 12 km deep · 94 km away
  6. 2.32 km SSW of Swede Heaven, Washington · 14785 days ago · 1 km deep · 65 km away
  7. 2.111 km SSW of Hope, Canada · 14786 days ago · 8 km deep · 56 km away
  8. 3.32 km S of Swede Heaven, Washington · 14787 days ago · 1 km deep · 65 km away
  9. 2.12 km S of Swede Heaven, Washington · 14788 days ago · 1 km deep · 65 km away
  10. 2.4Washington · 14788 days ago · 3 km deep · 66 km away
  11. 3.62 km S of Swede Heaven, Washington · 14789 days ago · 2 km deep · 65 km away
  12. 1.72 km SSW of Swede Heaven, Washington · 14789 days ago · 2 km deep · 65 km away
  13. 3.1Washington · 14789 days ago · 1 km deep · 66 km away
  14. 1.73 km SSW of Swede Heaven, Washington · 14789 days ago · 3 km deep · 65 km away
  15. 2.92 km S of Swede Heaven, Washington · 14789 days ago · 1 km deep · 65 km away
  16. 1.72 km S of Swede Heaven, Washington · 14789 days ago · 0 km deep · 65 km away
  17. 1.9Washington · 14791 days ago · 21 km deep · 99 km away
  18. 1.52 km SW of Swede Heaven, Washington · 14792 days ago · 3 km deep · 64 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10204348. Read Tue, Sep 22, 2026, 4:16 PM UTC.