Historical tsunamis · Jun 23, 1946, 5:13 PM UTC
1946 British Columbia tsunami
Canada
The tsunami of Jun 23, 1946, 5:13 PM UTC originated near British Columbia (Canada).
Key facts
- Date
- Jun 23, 1946, 5:13 PM UTC
- Cause
- Earthquake and landslide
- Magnitude
- M7.3
- Maximum documented water height
- 9.00 m
- Deaths
- 1
- Damage
- limited (under US$ 1 million)
- Observation records
- 5
- Countries affected
- 1
It was triggered by a magnitude 7.3 earthquake.
The highest documented water height was 9.00 m (Alberni Bay, British Columbia, Canada).
5 observation sites in 1 countries are recorded.
The database records 1 deaths.
Damage is estimated at limited (under US$ 1 million).
Map of observation sites
5Each dot is a documented observation site; colour and size show the observed water height. The triangle marks the source.
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Canada | 5 | 9.00 m Alberni Bay, British Columbia | — | — |
Highest documented water heights
5 / 5Individual documented observations for this event. Heights come from different measurement types and sources; not every location has a measured height.
| Location / station | Observed height | Distance from source | Country |
|---|---|---|---|
| Alberni Bay, British Columbia · Bc | 9.00 m | 71 km | Canada |
| Quadra Island · Bc | 2.50 m | 40 km | Canada |
| Sisters Rock · Bc | 2.50 m | 55 km | Canada |
| Goose Spit, Comox Harbor · Bc | 1.00 m | 23 km | Canada |
| Read Island · Bc | — | 37 km | Canada |
More tsunamis
Source: NOAA National Centers for Environmental Information (NCEI), Global Historical Tsunami Database. Confirmed events only. Deaths and damage are database estimates; older records are incomplete. Water heights come from different types of observation.