Historical tsunamis · Jul 17, 1969, 5:00 AM UTC
1969 Southwest Iberian tsunami
Atlantic Ocean
The tsunami of Jul 17, 1969, 5:00 AM UTC originated near Southwest Iberian (Atlantic Ocean).
Key facts
- Date
- Jul 17, 1969, 5:00 AM UTC
- Cause
- Unknown
- Maximum documented water height
- 0.06 m
- Observation records
- 5
- Countries affected
- 3
The highest documented water height was 0.06 m (Lagos, Portugal).
5 observation sites in 3 countries are recorded.
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 |
|---|---|---|---|---|
 Spain | 2 | 0.19 m Santa Cruz, Tenerife, Canary Is | — | — |
 Portugal | 2 | 0.06 m Lagos | — | — |
| Azores (Portugal) | 1 | — | — | — |
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 |
|---|---|---|---|
| Santa Cruz, Tenerife, Canary Is | 0.19 m | 4 km | Spain |
| Lagos | 0.06 m | 1,193 km | Portugal |
| Arrecife, Lanzarote Island | 0.04 m | 273 km | Spain |
| Angra do Heroismo, Terceira | — | 1,521 km | Azores (Portugal) |
| Cascais | — | 1,301 km | Portugal |
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.