Canada earthquakes

M1.7 earthquake 9 km ENE of Maple Ridge, Canada

A magnitude 1.7 earthquake struck 9 km ENE of Maple Ridge, Canada on Sat, Jul 6, 1991, 5:42 AM PDT (12:42 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M2.5 17 km S of Glacier, Washington. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.7 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1991-07-06 12:42:26 UTC
Depth
7.9 km (4.9 mi), shallow
Epicenter
49.261° N, 122.488° 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 0.8 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
152°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 1.83 km ENE of Deming, Washington · 12870 days ago · 1 km deep · 52 km away
  2. 2.03 km WSW of Langley, Canada · 12858 days ago · 12 km deep · 24 km away
  3. 2.14 km NNW of Hamilton, Washington · 12853 days ago · -1 km deep · 86 km away
  4. 2.07 km W of Aldergrove, Canada · 12836 days ago · 71 km deep · 25 km away
  5. 1.56 km ESE of Alger, Washington · 12835 days ago · -1 km deep · 76 km away
  6. 2.517 km S of Glacier, Washington · 12831 days ago · -1 km deep · 71 km away
  7. 1.52 km SSE of Orcas, Washington · 12829 days ago · 56 km deep · 83 km away
  8. 2.04 km N of Friday Harbor, Washington · 12827 days ago · 54 km deep · 86 km away
  9. 2.25 km ESE of Alger, Washington · 12822 days ago · 2 km deep · 75 km away
  10. 1.724 km NNE of Concrete, Washington · 12819 days ago · -1 km deep · 85 km away

Before

  1. 3.06 km ENE of Maple Ridge, Canada · 12876 days ago · 5 km deep · 3 km away
  2. 1.50 km NE of Ferndale, Washington · 12889 days ago · 7 km deep · 46 km away
  3. 1.53 km WNW of Deming, Washington · 12892 days ago · 12 km deep · 50 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10275643. Read Sat, Oct 3, 2026, 6:19 PM UTC.