December 26, 1764 Tsunami: Lisbon, Portugal
A tsunami caused by an earthquake began at Lisbon, Portugal on December 26, 1764 at 10:00 UTC.
Where the waves reached
The source of the tsunami. No runup with a place is recorded for it.
- Under 1 m
- 1 to 3 m
- 3 to 10 m
- 10 to 30 m
- 30 m and more
- Height not recorded
The tsunami
- Date
- December 26, 1764, 10:00 UTC
- Source
- Lisbon, Portugal
- Cause
- Earthquake
- Earthquake
- The earthquake
- Runups recorded
- 0
- Waters
- Ocean
- How certain
- Questionable tsunami
- Source location
- 38.700° N, 9.200° 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.
December 26, 1764, 11 a.m., an instantaneous vertical shock of great violence. The sea, though very low and quite calm, rose considerably. (reference #516)
More
Every tsunami in 1764The 1700sTsunamis of PortugalThe earthquakeThis 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 2026-09-24. NCEI tsunami event 3546.