M3.0 earthquake 9 km E of Oak Bay, Canada
A magnitude 3.0 earthquake struck 9 km E of Oak Bay, Canada on Fri, Sep 24, 1971, 2:16 AM PDT (09:16 UTC), 30 km (19 mi) below the surface.
A larger quake followed: M3.2 20 km NNE of Jamestown, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.0 (Md, duration), minor
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1971-09-24 09:16:43 UTC
- Depth
- 29.9 km (18.6 mi), shallow
- Epicenter
- 48.437° N, 123.181° 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 5.2 km horizontally, 5.1 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- Operator assigned
- Station coverage gap
- 317°, poorly surrounded by stations
- Stations used
- 5
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 4 in the 30 days before it.
After
- 3.220 km NNE of Jamestown, Washington · 20086 days ago · 23 km deep · 24 km away
- 2.112 km NW of Port Townsend, Washington · 20078 days ago · 28 km deep · 35 km away
- 2.42 km WSW of Suquamish, Washington · 20073 days ago · 18 km deep · 91 km away
- 2.81 km ENE of Keyport, Washington · 20069 days ago · 21 km deep · 92 km away
- 3.05 km N of Bangor Trident Base, Washington · 20061 days ago · 54 km deep · 81 km away
- 2.413 km NW of Ault Field, Washington · 20060 days ago · 31 km deep · 27 km away
- 2.80 km ESE of Mukilteo, Washington · 20044 days ago · 62 km deep · 85 km away
- 1.51 km SW of Mountlake Terrace, Washington · 20039 days ago · 27 km deep · 97 km away
Before
- 1.510 km NW of Brinnon, Washington · 20101 days ago · -1 km deep · 78 km away
- 2.25 km E of Coupeville, Washington · 20114 days ago · 4 km deep · 49 km away
- 2.618 km N of Jamestown, Washington · 20115 days ago · 49 km deep · 17 km away
- 1.96 km WSW of Port Hadlock-Irondale, Washington · 20125 days ago · 21 km deep · 52 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10839803. Read Thu, Oct 1, 2026, 2:48 PM UTC.