Washington earthquakes

M2.8 earthquake 5 km NE of Blyn, Washington

A magnitude 2.8 earthquake struck 5 km NE of Blyn, Washington on Sun, Sep 20, 1987, 1:53 AM PDT (08:53 UTC), 55 km (34 mi) below the surface.

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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
2.8 (md), micro
Local time
UTC
1987-09-20 08:53:13 UTC
Depth
55.0 km (34.2 mi), shallow
Epicenter
48.056° N, 122.952° 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 0.8 km horizontally, 1.2 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
85°
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: 13 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 1.61 km SW of Lake Marcel-Stillwater, Washington · 14244 days ago · 22 km deep · 87 km away
  2. 2.15 km NE of Kingston, Washington · 14242 days ago · 16 km deep · 45 km away
  3. 1.87 km SSW of Quilcene, Washington · 14236 days ago · 47 km deep · 32 km away
  4. 1.52 km ESE of Ames Lake, Washington · 14231 days ago · 22 km deep · 90 km away
  5. 1.98 km SSE of Sultan, Washington · 14231 days ago · 14 km deep · 93 km away
  6. 1.918 km SE of Oak Bay, Canada · 14220 days ago · 23 km deep · 33 km away
  7. 1.81 km ENE of Vashon, Washington · 14212 days ago · 22 km deep · 77 km away
  8. 1.66 km E of Belfair, Washington · 14208 days ago · 19 km deep · 69 km away
  9. 1.99 km NNW of Ault Field, Washington · 14206 days ago · 52 km deep · 44 km away
  10. 1.91 km SW of Rocky Point, Washington · 14203 days ago · 17 km deep · 57 km away
  11. 2.41 km E of Ferndale, Washington · 14198 days ago · 18 km deep · 92 km away
  12. 1.56 km ENE of Verlot, Washington · 14198 days ago · 14 km deep · 93 km away
  13. 2.210 km N of Quilcene, Washington · 14197 days ago · 19 km deep · 17 km away

Before

  1. 2.82 km N of Port Townsend, Washington · 14247 days ago · 21 km deep · 17 km away
  2. 1.515 km E of North Saanich, Canada · 14258 days ago · 50 km deep · 71 km away
  3. 1.83 km NW of Bainbridge Island, Washington · 14264 days ago · 20 km deep · 54 km away
  4. 2.02 km WSW of Birch Bay, Washington · 14270 days ago · 15 km deep · 96 km away
  5. 1.65 km NNW of Orcas, Washington · 14276 days ago · 18 km deep · 65 km away
  6. 1.72 km SSW of Birch Bay, Washington · 14277 days ago · 13 km deep · 95 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10225053 (also filed as usp00038ja). Read Tue, Sep 22, 2026, 8:17 AM UTC.