Washington earthquakes

M2.8 earthquake 3 km SW of Swede Heaven, Washington

A magnitude 2.8 earthquake struck 3 km SW of Swede Heaven, Washington on Tue, Mar 17, 1987, 8:34 AM PST (16:34 UTC), 3 km (2 mi) below the surface.

Swede Heaven 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
2.8 (md), micro
Local time
UTC
1987-03-17 16:34:54 UTC
Depth
2.5 km (1.6 mi), shallow
Epicenter
48.256° N, 121.761° 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 0.9 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.09
Depth from
Operator assigned
Station coverage gap
59°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 1.50 km SSW of Echo Lake, Washington · 14433 days ago · 21 km deep · 57 km away
  2. 2.13 km SSW of Swede Heaven, Washington · 14432 days ago · 3 km deep · 1 km away
  3. 1.77 km SSW of Bellingham, Washington · 14428 days ago · 13 km deep · 74 km away
  4. 2.27 km ENE of Lofall, Washington · 14423 days ago · 8 km deep · 76 km away
  5. 2.83 km SSW of Swede Heaven, Washington · 14416 days ago · 1 km deep · 1 km away
  6. 2.61 km NE of Riverton, Washington · 14413 days ago · 25 km deep · 93 km away
  7. 1.78 km NNE of Snoqualmie, Washington · 14413 days ago · 8 km deep · 73 km away
  8. 1.61 km NE of Riverton, Washington · 14411 days ago · 24 km deep · 93 km away
  9. 2.51 km NE of Riverton, Washington · 14405 days ago · 23 km deep · 93 km away
  10. 1.61 km NNW of Fall City, Washington · 14400 days ago · 8 km deep · 76 km away
  11. 1.520 km SSE of Marblemount, Washington · 14395 days ago · -1 km deep · 32 km away

Before

  1. 1.61 km SSW of Mercer Island, Washington · 14440 days ago · 5 km deep · 85 km away
  2. 2.33 km S of Seattle, Washington · 14440 days ago · 12 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10217153 (also filed as usp00033d2). Read Tue, Sep 22, 2026, 4:51 PM UTC.