September 11, 1908 Tsunami: Gulf of Saint Lawrence, Canada
A tsunami of unknown cause began at Gulf of Saint Lawrence, Canada on September 11, 1908. Its effects were recorded at 3 places.
Where the waves reached
The source (white) and every runup with a place, colored by the water height recorded there. A ring is a runup NCEI marks doubtful.
- Under 1 m
- 1 to 3 m
- 3 to 10 m
- 10 to 30 m
- 30 m and more
- Height not recorded
Travel times
How long the first wave took to reach each part of the ocean, one line for each hour up to 24, estimated from the source and the depth of the sea.
The travel times are computed in your browser, which needs JavaScript.
- 1 to 4 hours
- 5 to 6 hours
- 7 to 14 hours
- 15 hours and more
Computed in your browser the way NOAA’s own travel time maps are: the wave travels at the square root of gravity times the depth, over NOAA’s ETOPO1 depths averaged to a 10 arc-minute grid. Checked against NOAA NCEI’s maps for 21 tsunamis over the first 24 hours, these lines fall within 10 minutes of NCEI’s at half the points compared and within 52 minutes at 9 in 10. They give when the first wave could arrive, not how high it is; bays, harbors and island chains finer than the grid can see it later. Not for use in a warning: see tsunami.gov.
The tsunami
- Date
- September 11, 1908
- Source
- Gulf of Saint Lawrence, Canada
- Cause
- Unknown
- Runups recorded
- 3
- Waters
- Ocean
- How certain
- Questionable tsunami
- Source location
- 48.958° N, 62.133° W
The toll
The record gives no deaths, injuries or damage for this tsunami.
What the record says
NCEI’s account, from the sources it cites.
An oscillation of sea level was observed in the Bay of Chaleur on the western side of the St. Lawrence Gulf (Reference #3934). It is possible that it also was observed in northern Cape Breton (Reference #3935, #1831). Cause unknown.
Professor Ken B. S. Burke at the Department of Geology at the University of New Brunswick, Fredericton, N. B. has kindly sent us a newspaper reference confirming that this event which occurred on Friday, September 11, 1908 was a tsunami observed iin at least the Baie des Chaleurs region of New Brunswick. (reference #3935)
Every runup
Nearest the source first. Heights are above sea level at the time; a tide gauge reads half the wave’s full height.
| Where | Country | Km from source | Water height, m | Inland, m | Measured by | First wave, UTC | Deaths |
|---|---|---|---|---|---|---|---|
| Douglastown | Canada | 166 | Eyewitness observation of water height | ||||
| Gaspe | Canada | 173 | Eyewitness observation of water height | ||||
| Baie des Chaleurs | Canada | 280 | Eyewitness observation of water height |
More
Every tsunami in 1908The 1900sTsunamis of CanadaThis day in weather historyAlerts in force
Sources
Tsunami events and runups from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-10-01. NCEI tsunami event 3531.