NOAA / NCEI
Tsunamis in Portugal
6 confirmed tsunamis originating in Portugal. Highest documented wave: 18.3 m (Lisbon, 1755).
Map of observation sites
Tsunami source locations; colour and size show the highest documented water height. Click to open the event.
All documented events
6| Date | Location / station | Magnitude | Maximum documented water height | Deaths | Observation records |
|---|---|---|---|---|---|
| Jan 1, 1980, 4:42 PM UTC | Azores | 6.9 | 0.41 m | 69 | 2 |
| Feb 28, 1969, 2:40 AM UTC | Portugal | 7.8 | 0.90 m | 25 | 31 |
| Mar 4, 1930, 6:03 PM UTC | Madeira Island | — | 5.00 m | 19 | 2 |
| Jul 9, 1847 | Azores | — | 7.00 m | 10 | 2 |
| Nov 1, 1755, 9:30 AM UTC | Lisbon | 8.5 | 18.3 m | 50,000 | 123 |
| December 1530 | Tagus River, Lisbon | 7.7 | — | 30,000 | 1 |
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.