Canada earthquakes

M1.6 earthquake 6 km WNW of Tsawwassen, Canada

A magnitude 1.6 earthquake struck 6 km WNW of Tsawwassen, Canada on Fri, Aug 15, 2003, 8:54 AM PDT (15:54 UTC), 25 km (15 mi) below the surface.

A larger quake followed: M2.5 8 km ESE of Oak Bay, Canada. This one was a foreshock.

Point Roberts 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
1.6 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2003-08-15 15:54:25 UTC
Depth
24.5 km (15.3 mi), shallow
Epicenter
49.038° N, 123.166° 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 3.3 km horizontally, 3.0 km in depth
Magnitude uncertainty
±0.03
Depth from
Operator assigned
Station coverage gap
270°, poorly surrounded by stations
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 1.6Washington · 8444 days ago · 7 km deep · 77 km away
  2. 1.93 km NW of Deming, Washington · 8443 days ago · 16 km deep · 70 km away
  3. 1.53 km WNW of Deming, Washington · 8443 days ago · 13 km deep · 70 km away
  4. 1.64 km WNW of Deming, Washington · 8442 days ago · 13 km deep · 69 km away
  5. 2.31 km WNW of Deming, Washington · 8442 days ago · 0 km deep · 71 km away
  6. 1.519 km NNE of Jamestown, Washington · 8439 days ago · 48 km deep · 83 km away
  7. 1.55 km NE of Anacortes, Washington · 8414 days ago · 12 km deep · 70 km away
  8. 2.214 km NE of Jamestown, Washington · 8410 days ago · 24 km deep · 93 km away
  9. 1.55 km SSE of Lynden, Washington · 8410 days ago · 16 km deep · 56 km away
  10. 2.13 km NE of Anacortes, Washington · 8405 days ago · 16 km deep · 70 km away
  11. 2.58 km ESE of Oak Bay, Canada · 8391 days ago · 44 km deep · 69 km away

Before

  1. 1.63 km NNW of Big Lake, Washington · 8459 days ago · 7 km deep · 95 km away
  2. 2.443 km NNE of Anmore, Canada · 8460 days ago · 6 km deep · 82 km away
  3. 2.1Washington · 8461 days ago · 26 km deep · 93 km away
  4. 2.54 km SW of Clear Lake, Washington · 8462 days ago · 8 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10591623. Read Thu, Oct 1, 2026, 5:15 PM UTC.