Canada earthquakes

M2.8 earthquake 15 km NNE of Oak Bay, Canada

A magnitude 2.8 earthquake struck 15 km NNE of Oak Bay, Canada on Mon, Sep 24, 1973, 12:27 AM PDT (07:27 UTC), 50 km (31 mi) below the surface.

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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
2.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1973-09-24 07:27:33 UTC
Depth
50.0 km (31.1 mi), shallow
Epicenter
48.582° N, 123.259° 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 1.3 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
218°, poorly surrounded by stations
Stations used
8

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 9 in the 30 days before it.

After

  1. 1.67 km NNE of Port Ludlow, Washington · 19361 days ago · 4 km deep · 80 km away
  2. 1.710 km SSE of Port Angeles East, Washington · 19360 days ago · 46 km deep · 61 km away
  3. 1.61 km NNW of Hansville, Washington · 19359 days ago · 20 km deep · 89 km away
  4. 1.78 km SE of Oak Bay, Canada · 19357 days ago · 22 km deep · 21 km away
  5. 2.84 km N of Hansville, Washington · 19355 days ago · 23 km deep · 87 km away
  6. 1.64 km S of Lake Cavanaugh, Washington · 19346 days ago · 13 km deep · 98 km away
  7. 2.10 km SW of Oak Harbor, Washington · 19322 days ago · 16 km deep · 56 km away
  8. 1.95 km ESE of Alger, Washington · 19322 days ago · 14 km deep · 72 km away
  9. 2.02 km SSE of Coupeville, Washington · 19319 days ago · 32 km deep · 61 km away
  10. 2.78 km NW of Friday Harbor, Washington · 19315 days ago · 7 km deep · 13 km away
  11. 1.610 km NNW of Anacortes, Washington · 19315 days ago · 13 km deep · 45 km away
  12. 2.410 km ESE of Deming, Washington · 19309 days ago · 3 km deep · 90 km away

Before

  1. 2.34 km SW of Geneva, Washington · 19373 days ago · 24 km deep · 62 km away
  2. 2.116 km W of Quilcene, Washington · 19375 days ago · 45 km deep · 88 km away
  3. 1.55 km N of Marrowstone, Washington · 19376 days ago · 24 km deep · 68 km away
  4. 1.86 km NW of Friday Harbor, Washington · 19378 days ago · 5 km deep · 14 km away
  5. 1.98 km NW of Friday Harbor, Washington · 19379 days ago · 6 km deep · 13 km away
  6. 2.45 km ESE of Nooksack, Washington · 19379 days ago · 21 km deep · 83 km away
  7. 1.85 km ESE of Nooksack, Washington · 19379 days ago · 15 km deep · 82 km away
  8. 2.15 km ESE of Port Townsend, Washington · 19385 days ago · 59 km deep · 68 km away
  9. 2.313 km W of Quilcene, Washington · 19392 days ago · 48 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10857168. Read Fri, Oct 2, 2026, 6:58 AM UTC.