The 1761 Lisbon earthquake and its subsequent tsunami occurred in the north Atlantic Ocean and south of the Iberian Peninsula.

This violent shock which struck just after noon on 31 March 1761, was felt across many parts of Western Europe and in Morocco.

Its direct effects were observed even far north in Scotland and Amsterdam, and to the south in the Canary Islands of Spain.

Records of this disaster are sparse as the Portuguese government censored much information in order to avoid panic in the already ruined city.

Other locations that felt the earthquake included Bayonne, Bordeaux and Roussillon in Southern France, Amsterdam in the Netherlands, Cork in Ireland, the Azores Islands,[1] and Morocco.

In Porto, the city suffered heavy damage worse than that sustained in 1755, resulting in several people being killed.

This prompted an inquiry from the Council of Castile and Roman Catholic Diocese of Cartagena to obtain more information about the earthquake.

[7] In Fort Augustus, Scotland, the water level at Loch Ness rose approximately 2 feet (0.61 m), and then subsided.

[1] One hour and 25 minutes after the earthquake was felt in Lisbon, waves measuring up to 8 feet (2.4 m) were observed approaching the coast and damaging ships.

At Kinsale, at about 18:00, the sea rose suddenly 2 feet (0.61 m) and retreated rapidly in four minutes, this being repeated, though to a less extent, several times.