Washington earthquakes

M1.7 earthquake 12 km NNE of Maple Falls, Washington

A magnitude 1.7 earthquake struck 12 km NNE of Maple Falls, Washington on Thu, Aug 14, 1975, 3:53 PM PDT (22:53 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M1.9 8 km S of Chilliwack, Canada. This one was a foreshock.

Peaceful Valley 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
1.7 (md), micro
Local time
UTC
1975-08-14 22:53:33 UTC
Depth
-0.2 km (-0.1 mi), shallow
Epicenter
49.029° N, 122.036° 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 10.3 km horizontally, 12.8 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
283°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 1.98 km S of Chilliwack, Canada · 18641 days ago · 6 km deep · 9 km away
  2. 1.83 km SSE of La Conner, Washington · 18638 days ago · -1 km deep · 81 km away
  3. 2.56 km WSW of Lake Cavanaugh, Washington · 18636 days ago · 3 km deep · 81 km away
  4. 1.853 km SSE of Hope, Canada · 18636 days ago · 0 km deep · 72 km away
  5. 2.66 km WSW of Lake Cavanaugh, Washington · 18634 days ago · 7 km deep · 81 km away
  6. 2.06 km SW of Lake Cavanaugh, Washington · 18634 days ago · 11 km deep · 82 km away
  7. 2.50 km ENE of Peaceful Valley, Washington · 18634 days ago · 11 km deep · 12 km away
  8. 1.96 km WSW of Lake Cavanaugh, Washington · 18633 days ago · 9 km deep · 81 km away
  9. 2.16 km WSW of Lake Cavanaugh, Washington · 18629 days ago · 2 km deep · 81 km away
  10. 1.74 km ENE of Swede Heaven, Washington · 18623 days ago · -1 km deep · 85 km away
  11. 2.56 km SE of Oak Harbor, Washington · 18622 days ago · 17 km deep · 96 km away
  12. 1.98 km NW of Orcas, Washington · 18621 days ago · 16 km deep · 84 km away
  13. 1.65 km SE of Oak Harbor, Washington · 18621 days ago · 17 km deep · 95 km away
  14. 1.83 km S of Orcas, Washington · 18620 days ago · 3 km deep · 84 km away
  15. 3.47 km WNW of Anacortes, Washington · 18617 days ago · 8 km deep · 73 km away
  16. 2.39 km ESE of Alger, Washington · 18607 days ago · 1 km deep · 50 km away

Before

  1. 1.74 km NW of Oso, Washington · 18668 days ago · 8 km deep · 82 km away
  2. 1.82 km NNE of Bay View, Washington · 18679 days ago · 24 km deep · 66 km away
  3. 2.09 km N of Hamilton, Washington · 18691 days ago · 7 km deep · 47 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10861463. Read Tue, Sep 22, 2026, 3:35 PM UTC.