Canada earthquakes

M1.9 earthquake 8 km S of Chilliwack, Canada

A magnitude 1.9 earthquake struck 8 km S of Chilliwack, Canada on Tue, Sep 9, 1975, 3:55 PM PDT (22:55 UTC), 6 km (3 mi) below the surface.

A larger quake followed: M2.5 6 km WSW of Lake Cavanaugh, Washington. This one was a foreshock.

Chilliwack forecastMore in Canada

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.9 (md), micro
Local time
UTC
1975-09-09 22:55:14 UTC
Depth
5.5 km (3.4 mi), shallow
Epicenter
49.092° N, 121.965° W
Region
Canada
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 4.0 km horizontally, 4.9 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
297°, 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: 13 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 1.83 km SSE of La Conner, Washington · 18638 days ago · -1 km deep · 90 km away
  2. 2.56 km WSW of Lake Cavanaugh, Washington · 18636 days ago · 3 km deep · 88 km away
  3. 1.853 km SSE of Hope, Canada · 18636 days ago · 0 km deep · 68 km away
  4. 2.66 km WSW of Lake Cavanaugh, Washington · 18635 days ago · 7 km deep · 89 km away
  5. 2.06 km SW of Lake Cavanaugh, Washington · 18634 days ago · 11 km deep · 90 km away
  6. 2.50 km ENE of Peaceful Valley, Washington · 18634 days ago · 11 km deep · 21 km away
  7. 1.96 km WSW of Lake Cavanaugh, Washington · 18633 days ago · 9 km deep · 89 km away
  8. 2.16 km WSW of Lake Cavanaugh, Washington · 18630 days ago · 2 km deep · 88 km away
  9. 1.74 km ENE of Swede Heaven, Washington · 18623 days ago · -1 km deep · 90 km away
  10. 1.98 km NW of Orcas, Washington · 18621 days ago · 16 km deep · 92 km away
  11. 1.83 km S of Orcas, Washington · 18620 days ago · 3 km deep · 93 km away
  12. 3.47 km WNW of Anacortes, Washington · 18617 days ago · 8 km deep · 81 km away
  13. 2.39 km ESE of Alger, Washington · 18607 days ago · 1 km deep · 59 km away

Before

  1. 1.712 km NNE of Maple Falls, Washington · 18667 days ago · 0 km deep · 9 km away
  2. 1.74 km NW of Oso, Washington · 18668 days ago · 8 km deep · 89 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10861718. Read Tue, Sep 22, 2026, 5:21 PM UTC.