M5.4 earthquake 261 km WSW of Tofino, Canada
A magnitude 5.4 earthquake struck 261 km WSW of Tofino, Canada on Thu, Nov 25, 1971, 3:40 PM PST (23:40 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M6.0 230 km SW of Port McNeill, Canada. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (mw), moderate
- Local time
- UTC
- 1971-11-25 23:40:09 UTC
- Depth
- 5.2 km (3.2 mi), shallow
- Epicenter
- 48.727° N, 129.415° 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.
- Magnitude uncertainty
- ±0.22
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.4 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 6.0230 km SW of Port McNeill, Canada · 20022 days ago · 17 km deep · 82 km away
- 5.7204 km SW of Port McNeill, Canada · 20019 days ago · 18 km deep · 63 km away
Before
Earthquakes todayCanada earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem778837. Read Mon, Sep 28, 2026, 11:40 PM UTC.