A tsunami deposit at Anse Meunier, Martinique Island: Evidence of the 1755 CE Lisbon tsunami and implication for hazard assessment

This study presents the results of paleo-tsunami investigation in marshes southern and eastern coasts Martinique Island (Lesser Antilles, France). A sand unit dated 1726–1813 cal. CE at 30 cm depth Anse Meunier represents most convincing evidence high-energy coastal flooding last 5000 years on island. Sedimentological analyses combined with tsunami simulations demonstrate that this deposit likely corresponds to 1755 Lisbon transatlantic tsunami. No other or hurricane event was identified 11 investigated. The is thus only recorded stratigraphy during 3500 years, even if we cannot exclude possibility larger-magnitude but lower-frequency tsunamis would not be period.