Historical tsunamis · Aug 11, 1900, 4:40 AM UTC
1900 Lituya Bay, Ak tsunami
United States
The tsunami of Aug 11, 1900, 4:40 AM UTC originated near Lituya Bay, Ak (United States).
Key facts
- Date
- Aug 11, 1900, 4:40 AM UTC
- Cause
- Earthquake and landslide
- Maximum documented water height
- —
- Deaths
- 5
- Damage
- limited (under US$ 1 million)
- Observation records
- 1
- Countries affected
- 1
Cause according to NOAA/NCEI: Earthquake and landslide.
1 observation sites in 1 countries are recorded.
The database records 5 deaths.
Damage is estimated at limited (under US$ 1 million).
Map of observation sites
1Each 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 |
|---|---|---|---|---|
| United States | 1 | — | 5 | — |
Highest documented water heights
1 / 1Individual 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 |
|---|---|---|---|
| Lituya Bay, Ak · Ak | — | 6 km | United States |
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.