Canada earthquakes

M1.7 earthquake 4 km ENE of Six Mile, Canada

A magnitude 1.7 earthquake struck 4 km ENE of Six Mile, Canada on Thu, Aug 21, 1980, 6:12 AM PDT (13:12 UTC), 30 km (19 mi) below the surface.

A larger quake followed: M2.1 2 km NNW of Warm Beach, Washington. This one was a foreshock.

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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
1980-08-21 13:12:51 UTC
Depth
30.0 km (18.6 mi), shallow
Epicenter
48.466° N, 123.407° 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 2.4 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
256°, 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: 9 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 1.64 km WSW of Hansville, Washington · 16833 days ago · 16 km deep · 87 km away
  2. 1.719 km SSW of Birch Bay, Washington · 16832 days ago · 11 km deep · 51 km away
  3. 2.12 km NNW of Warm Beach, Washington · 16823 days ago · 29 km deep · 82 km away
  4. 1.75 km SSW of Lake McMurray, Washington · 16802 days ago · 0 km deep · 88 km away
  5. 1.620 km W of Quilcene, Washington · 16800 days ago · 42 km deep · 70 km away
  6. 2.72 km WSW of Big Lake, Washington · 16795 days ago · 15 km deep · 84 km away
  7. 2.32 km WSW of Big Lake, Washington · 16795 days ago · 15 km deep · 84 km away
  8. 2.72 km W of Big Lake, Washington · 16791 days ago · 15 km deep · 84 km away
  9. 3.011 km S of Friday Harbor, Washington · 16786 days ago · 25 km deep · 27 km away

Before

  1. 1.57 km WNW of Anacortes, Washington · 16844 days ago · 52 km deep · 52 km away
  2. 1.59 km WNW of Orcas, Washington · 16845 days ago · 13 km deep · 30 km away
  3. 2.09 km WNW of Orcas, Washington · 16845 days ago · 18 km deep · 30 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10085568. Read Wed, Sep 23, 2026, 10:06 PM UTC.