The research investigates the tsunami hazard in the remote French territory of Wallis and Futuna, Southwest Pacific, using numerical computer modelling of tsunami generation, propagation and inundation. Wallis consists of the inhabited island of Uvéa that is surrounded by a lagoon delimited by a barrier reef, whereas Futuna and the island of Alofi form the Horn Archipelago located ca. 240 km east. Futuna and Alofi are surrounded by a narrow fringing reef and emerge from the North Fiji Transform.