Canada earthquakes

M1.5 earthquake 16 km NNE of Ganges, Canada

A magnitude 1.5 earthquake struck 16 km NNE of Ganges, Canada on Fri, Sep 20, 2002, 5:42 AM PDT (12:42 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.1 9 km SW of Friday Harbor, 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
1.5 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2002-09-20 12:42:08 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
48.991° N, 123.408° 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 0.2 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.03
Depth from
Operator assigned
Station coverage gap
242°, poorly surrounded by stations
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.19 km SW of Friday Harbor, Washington · 8776 days ago · 23 km deep · 60 km away · felt by 294
  2. 1.99 km WSW of Friday Harbor, Washington · 8776 days ago · 21 km deep · 60 km away
  3. 1.99 km WSW of Friday Harbor, Washington · 8776 days ago · 21 km deep · 59 km away
  4. 1.79 km WSW of Friday Harbor, Washington · 8776 days ago · 21 km deep · 59 km away
  5. 1.59 km SW of Friday Harbor, Washington · 8775 days ago · 20 km deep · 61 km away
  6. 2.910 km SW of Friday Harbor, Washington · 8771 days ago · 23 km deep · 60 km away
  7. 1.95 km SE of Birch Bay, Washington · 8770 days ago · 18 km deep · 54 km away
  8. 2.712 km NE of Mission, Canada · 8765 days ago · 1 km deep · 93 km away
  9. 1.713 km ENE of Mission, Canada · 8765 days ago · 10 km deep · 95 km away
  10. 2.15 km W of Edison, Washington · 8764 days ago · 15 km deep · 81 km away
  11. 1.75 km WSW of Edison, Washington · 8762 days ago · 0 km deep · 82 km away
  12. 1.510 km ESE of Friday Harbor, Washington · 8761 days ago · 0 km deep · 66 km away
  13. 1.98 km SSW of Anacortes, WA · 8739 days ago · 21 km deep · 82 km away
  14. 1.610 km NNW of Ault Field, WA · 8737 days ago · 22 km deep · 81 km away
  15. 2.29 km NNW of Ault Field, Washington · 8736 days ago · 22 km deep · 81 km away
  16. 2.410 km ESE of Friday Harbor, Washington · 8736 days ago · 0 km deep · 67 km away

Before

  1. 1.59 km NNE of Port Angeles East, Washington · 8793 days ago · 41 km deep · 90 km away
  2. 1.62 km SE of Alger, Washington · 8794 days ago · 14 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10565348. Read Thu, Oct 1, 2026, 8:45 AM UTC.