Canada earthquakes

M1.7 earthquake 4 km W of Langford, Canada

A magnitude 1.7 earthquake struck 4 km W of Langford, Canada on Wed, Aug 8, 1984, 3:21 AM PDT (10:21 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M2.0 19 km W of Ault Field, Washington. This one was a foreshock.

Langford 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
1.7 (md), micro
Local time
UTC
1984-08-08 10:21:25 UTC
Depth
2.7 km (1.7 mi), shallow
Epicenter
48.453° N, 123.569° 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 22.0 km horizontally, 48.5 km in depth
Magnitude uncertainty
±0.11
Depth from
Operator assigned
Station coverage gap
232°, 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 6 in the 30 days before it.

After

  1. 2.019 km W of Ault Field, Washington · 15383 days ago · 17 km deep · 48 km away
  2. 2.28 km W of Brinnon, Washington · 15381 days ago · 46 km deep · 96 km away
  3. 1.57 km SW of Camano, Washington · 15378 days ago · 28 km deep · 80 km away
  4. 1.611 km SSW of Port Angeles East, Washington · 15374 days ago · 38 km deep · 50 km away
  5. 2.28 km NNW of Ault Field, Washington · 15365 days ago · 50 km deep · 64 km away
  6. 1.62 km NNW of La Conner, Washington · 15364 days ago · 17 km deep · 78 km away
  7. 2.622 km ENE of North Saanich, Canada · 15361 days ago · 57 km deep · 45 km away
  8. 1.71 km N of Lake Ketchum, Washington · 15356 days ago · 15 km deep · 92 km away
  9. 3.06 km SW of Camano, Washington · 15344 days ago · 2 km deep · 80 km away
  10. 1.67 km WNW of Lofall, Washington · 15336 days ago · 51 km deep · 92 km away
  11. 1.56 km S of Bell Hill, Washington · 15336 days ago · -1 km deep · 62 km away
  12. 1.71 km N of Bay View, Washington · 15336 days ago · 14 km deep · 81 km away

Before

  1. 2.115 km S of Port Angeles East, Washington · 15387 days ago · 38 km deep · 57 km away
  2. 1.65 km SW of Mount Vernon, Washington · 15387 days ago · 7 km deep · 87 km away
  3. 1.85 km WSW of Mount Vernon, Washington · 15390 days ago · 6 km deep · 86 km away
  4. 1.53 km NW of Jamestown, Washington · 15390 days ago · 45 km deep · 47 km away
  5. 2.218 km NE of Ganges, Canada · 15399 days ago · 55 km deep · 61 km away
  6. 1.98 km ESE of Quilcene, Washington · 15414 days ago · 22 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10178458. Read Tue, Sep 22, 2026, 4:03 PM UTC.