RT Journal Article T1 A Major Earthquake and Tsunami in the Gulf of Cadiz in the Sixth Century B.C.? A Review of the Historical, Archaeological, and Geological Evidence. A1 Álvarez-Martí-Aguilar, Manuel K1 Maremotos - Cádiz (Golfo) - S. VI A.C. K1 Geofísica en arqueología K1 Terremotos - Cádiz - S. VI A.C. AB This article offers an overview of the published evidence of the possible occurrence of an earthquake and tsunami that, if factual, would have struck the shores of the Gulf of Cadiz sometime in the sixth century B.C. It addresses the oldest literary sources containing accounts of earthquakes and tsunamis in the Iberian peninsula, and their inclusion in the most important seismic catalogs in Spain and Portugal, as well as examining the geoarchaeological evidence of an earthquake and tsunami in the city of Huelva, dating to the first quarter of the sixth century B.C., relating it to geomorphological and sedimentary evidence of extreme wave events in the Gulf of Cadiz in about 2500 B.P. The information provided by Greek authors writing in the fifth and fourth centuries B.C., which depicts the ocean beyond the Strait of Gibraltar as impassable and replete with shallows, might also be an indirect reference to that seismic and high-energy marine event, whose intensity, exact date, and repercussions for the inhabitants of the Gulf of Cadiz are essential objects of research. PB Seismological Society of America YR 2023 FD 2023-01-27 LK https://hdl.handle.net/10630/27968 UL https://hdl.handle.net/10630/27968 LA eng NO Álvarez-Martí-Aguilar, M. 2023. "A Major Earthquake and Tsunami in the Gulf of Cadiz in the Sixth Century B.C.? A Review of the Historical, Archaeological, and Geological Evidence", Seismological Research Letters 94 (2A): 975–982 NO Proyecto de Investigación TSUNIBER – Terremotos y tsunamis en la península ibérica en época antigua: respuestas sociales en la larga duración (PGC2018-093752-B-I00; MCI/AEI/FEDER, UE)Grupo de Estudios Historiográficos (HUM-394) del PAIDI. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 22 ene 2026