April 28, 1752 Tsunami: Portugal
A tsunami caused by an earthquake began at Portugal on April 28, 1752.
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
- April 28, 1752
- Source
- Portugal
- Cause
- Earthquake
- Earthquake
- The earthquake
- Runups recorded
- 0
- Waters
- Ocean
- How certain
- Very doubtful tsunami
- Source location
- 40.400° N, 8.700° 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.
April 28, 1752, Portugal. A violent earthquake at Buarcos (40 deg l0 min N, 08 deg 53 min W) and Aveiro (40 deg 38 min N, 08 deg 39 min W) was accompanied by inundations. (reference #41)
This event is listed in Perrey (1847), Rodriguez (1932) and Berninghausen (1964). The description of Berninghausen (1964), quoting Mallet (1852), says: ”[. . . ] April 28. Portugal. A violent earthquake at Buarcos and Aveiro was accompanied by inundation”. Mendonca (1758) refers only one event in this year (1752) but on 6 September, at Clermont and Rion (France). We checked the answers given to the Inquiry made by the Marques de Pombal for Buarcos, Aveiro and Figueira da Foz. Several answers report an event on 23 August 1753. Moreira (1984) also excludes this event on the basis that it is neither reported by Gazeta de Lisboa nor by Mendonca (1758). The catalog of Martins and Victor (2001) includes 2 events in 1752 and none in 1753. (reference #4649)
More
Every tsunami in 1752The 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 445.