M4.6 earthquake 227 km W of Tofino, Canada
A magnitude 4.6 earthquake struck 227 km W of Tofino, Canada on Mon, Oct 16, 1978, 8:21 PM PDT (03:21 UTC), 18 km (11 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1978-10-17 03:21:06 UTC
- Depth
- 18.0 km (11.2 mi), shallow
- Epicenter
- 48.860° N, 128.990° 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.
- Stations used
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayCanada earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000x16. Read Tue, Sep 22, 2026, 9:31 PM UTC.