Washington earthquakes

M1.5 earthquake Washington

A magnitude 1.5 earthquake struck in Washington on Mon, Jun 22, 1987, 1:59 AM PDT (08:59 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M1.7 7 km S of Bellingham, Washington. This one was a foreshock.

Darrington 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
1.5 (md), micro
Local time
UTC
1987-06-22 08:59:20 UTC
Depth
3.4 km (2.1 mi), shallow
Epicenter
48.145° N, 121.574° 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 1.1 km horizontally, 1.2 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
235°, poorly surrounded by stations
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 1.77 km S of Bellingham, Washington · 14336 days ago · -1 km deep · 91 km away
  2. 2.72 km E of Edmonds, Washington · 14333 days ago · 15 km deep · 68 km away
  3. 1.911 km SSW of Port Hadlock-Irondale, Washington · 14331 days ago · 50 km deep · 97 km away
  4. 2.48 km W of Port Townsend, Washington · 14330 days ago · 45 km deep · 96 km away
  5. 2.26 km WSW of Peaceful Valley, Washington · 14329 days ago · 16 km deep · 98 km away
  6. 1.92 km WNW of City of Sammamish, Washington · 14326 days ago · 0 km deep · 69 km away
  7. 2.45 km ESE of Oak Harbor, Washington · 14324 days ago · 25 km deep · 75 km away
  8. 1.55 km W of Lyman, Washington · 14324 days ago · -1 km deep · 60 km away
  9. 1.54 km SSW of Big Lake, Washington · 14308 days ago · 18 km deep · 57 km away
  10. 1.74 km E of Maple Falls, Washington · 14302 days ago · 0 km deep · 93 km away
  11. 1.85 km NE of Tanner, Washington · 14298 days ago · 13 km deep · 71 km away
  12. 1.61 km ESE of Lake Marcel-Stillwater, Washington · 14293 days ago · 0 km deep · 56 km away
  13. 1.55 km NNE of Duvall, Washington · 14293 days ago · 23 km deep · 49 km away
  14. 2.71 km N of Port Townsend, Washington · 14292 days ago · 22 km deep · 88 km away
  15. 2.06 km SW of Geneva, Washington · 14292 days ago · 12 km deep · 90 km away
  16. 1.55 km SSW of Geneva, Washington · 14291 days ago · 12 km deep · 89 km away
  17. 1.76 km SSW of Geneva, Washington · 14290 days ago · 12 km deep · 89 km away
  18. 1.57 km ESE of Ravensdale, Washington · 14278 days ago · -1 km deep · 95 km away
  19. 1.72 km N of Black Diamond, Washington · 14278 days ago · 18 km deep · 96 km away

Before

  1. 2.32 km W of Wilderness Rim, Washington · 14338 days ago · 21 km deep · 79 km away
  2. 1.51 km SE of Edison, Washington · 14342 days ago · 23 km deep · 77 km away
  3. 1.932 km NNW of Leavenworth, Washington · 14343 days ago · 0 km deep · 66 km away
  4. 2.06 km NE of Duvall, Washington · 14343 days ago · 20 km deep · 48 km away
  5. 1.87 km S of Kendall, Washington · 14349 days ago · 13 km deep · 88 km away
  6. 2.03 km NNW of Ravensdale, Washington · 14351 days ago · 6 km deep · 90 km away
  7. 2.13 km SSW of Clinton, Washington · 14358 days ago · 28 km deep · 63 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10221863. Read Tue, Sep 22, 2026, 3:45 PM UTC.