Historical tsunamis · Apr 27, 1975, 6:05 PM UTC
1975 Kitimat Inlet, British Columbia tsunami
Canada
The tsunami of Apr 27, 1975, 6:05 PM UTC originated near Kitimat Inlet, British Columbia (Canada).
Key facts
- Date
- Apr 27, 1975, 6:05 PM UTC
- Cause
- Landslide
- Maximum documented water height
- 4.10 m
- Damage
- moderate (about US$ 1–5 million)
- Observation records
- 4
- Countries affected
- 1
Cause according to NOAA/NCEI: Landslide.
The highest documented water height was 4.10 m (Kitimat Arm, British Columbia, Canada).
4 observation sites in 1 countries are recorded.
Damage is estimated at moderate (about US$ 1–5 million).
Map of observation sites
4Each dot is a documented observation site; colour and size show the observed water height. The triangle marks the source.
Tsunami arrival times
Documented arrival times from the NOAA/NCEI database, showing the earliest recorded location per country. Coverage is incomplete: a country without an entry was not necessarily spared.
- 0:00 hEarthquake (origin) · Apr 27, 1975, 6:05 PM UTC
- 0:00 hCanada · Kitimat Arm, British Columbia · 4.10 m
1 places with a documented arrival time
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Canada | 4 | 4.10 m Kitimat Arm, British Columbia | — | 0:00 h |
Highest documented water heights
4 / 4Individual 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 |
|---|---|---|---|
| Kitimat Arm, British Columbia · Bc | 4.10 m | 51 km | Canada |
| Clio Bay, British Columbia · Bc | 3.35 m | 9 km | Canada |
| Bish Creek, British Columbia · Bc | — | 0 km | Canada |
| Kildala Arm, British Columbia · Bc | — | 16 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.