Washington earthquakes

M1.5 earthquake 18 km SSE of Glacier, Washington

A magnitude 1.5 earthquake struck 18 km SSE of Glacier, Washington on Tue, Aug 29, 1989, 3:55 AM PDT (10:55 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M2.3 3 km NW of Acme, Washington. This one was a foreshock.

Concrete 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, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1989-08-29 10:55:35 UTC
Depth
23.0 km (14.3 mi), shallow
Epicenter
48.755° N, 121.809° 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 1.4 km horizontally, 1.7 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
211°, poorly surrounded by stations
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.06 km SW of Bay View, Washington · 13547 days ago · 24 km deep · 64 km away
  2. 2.33 km NW of Acme, Washington · 13544 days ago · -1 km deep · 31 km away
  3. 1.78 km NNW of Orcas, Washington · 13539 days ago · 18 km deep · 89 km away
  4. 1.516 km E of Verlot, Washington · 13527 days ago · -1 km deep · 78 km away
  5. 1.74 km E of Blaine, Washington · 13527 days ago · 11 km deep · 69 km away
  6. 2.36 km W of Lake Cavanaugh, Washington · 13525 days ago · 10 km deep · 53 km away
  7. 2.26 km W of Lake Cavanaugh, Washington · 13524 days ago · 12 km deep · 53 km away
  8. 1.71 km WNW of Anacortes, Washington · 13514 days ago · 10 km deep · 66 km away
  9. 1.63 km E of Riverside, Washington · 13508 days ago · 3 km deep · 72 km away
  10. 1.55 km SSE of Lake Roesiger, Washington · 13501 days ago · 15 km deep · 91 km away
  11. 1.97 km S of Bellingham, Washington · 13498 days ago · -1 km deep · 50 km away
  12. 1.91 km ESE of Darrington, Washington · 13489 days ago · 9 km deep · 58 km away

Before

  1. 2.019 km SSE of Glacier, Washington · 13549 days ago · 18 km deep · 1 km away
  2. 1.62 km NNE of Big Lake, Washington · 13563 days ago · -1 km deep · 48 km away
  3. 1.53 km NNW of La Conner, Washington · 13569 days ago · 23 km deep · 65 km away
  4. 2.56 km SSE of Swede Heaven, Washington · 13576 days ago · 3 km deep · 59 km away
  5. 1.85 km SSE of Swede Heaven, Washington · 13576 days ago · 8 km deep · 58 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10252288. Read Fri, Oct 2, 2026, 1:41 PM UTC.