New insights on the subsidence of Lipari island (Aeolian islands, southern Italy) from the submerged Roman age pier at Marina Lunga

摘要: Abstract Lipari island belongs to the Aeolian archipelago, located in Southern Tyrrhenian Sea (Italy), which is one of most active volcanic areas Mediterranean basin. Although this region has been settled since prehistory, only during Roman times were coastal installations built these islands. In study, we present and discuss data on relative sea level change estimated from a submerged pier age dated 2100 ± 100 BP. This structure, about 140 × 60 m, along coast Marina Lunga, corresponding location main harbor island. pier, was accidentally discovered 2008 preliminary excavations for construction new valuable indicator changes vertical land movements. Its top surface presently at −9.1 ± 0.05 m, while foundations at outer end are at −11.6 ± 0.05 m, above shoreline placed at −13.0 ± 0.05 m. We studied site through direct archaeological investigations ultra-high resolution multibeam bathymetry. The current submergence can be explained by cumulative effect caused regional glacio-hydro-isostatic signal, last glacial maximum, local volcano-tectonic subsidence. From our investigations, 12.3 ± 0.7 m with subsidence rate 5.79 ± 0.01 mm y −1 an average value contribution 5.17 ± 0.01 m y years BP, comparison against latest predicted model Sea. These rates led disuse after around fourth century AD, agreement interpretations. Our results provide insights recent evolution area.