Mezue ahịrịokwu na-esonụ: Southwest Iberian Margin (SIM) bụ mpaghara tectonic na-arụsi ọrụ ike n'akụkụ na n'ụsọ oké osimiri nke Portugal. Ekwenyere na ọ bụ mpaghara subduction na-amalite amalite na isi iyi nke nnukwu
Ala ọma jijiji nke mere na Lisbon n'afọ 1755.