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Paparo, Maria Ausilia
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- PublicationOpen AccessAssessment of the 1783 Scilla landslide–tsunami's effects on the Calabrian and Sicilian coasts through numerical modelingThe 1783 Scilla landslide–tsunami (Calabria, southern Italy) is a well-studied event that caused more than 1500 fatalities on the beaches close to the town. This paper complements a previous work that was based on numerical simulations and was focused on the very local effects of the tsunami in Scilla. In this study we extend the computational domain to cover a wider portion of western Calabria and northeastern Sicily, including the western side of the Straits of Messina. This investigation focuses on Capo Peloro area (the easternmost cape of Sicily), where the highest tsunami effects outside Scilla were reported. Important tsunami ob- servations, such as the wave height reaching 6m at Torre degli Inglesi and flooding that reached over 600 m inland, have been successfully modeled but only by means of a high- resolution (10 m) topo-bathymetric grid, since coarser grids were inadequate for the purpose. Interestingly, the inunda- tion of the small lake of Pantano Piccolo could not be repro- duced by using today’s coastal morphology, since a coastal dune now acts as a barrier against tsunamis. Historical anal- ysis suggests that this dune was not in place at the time of the tsunami occurred and that a ground depression extending from the lake to the northern coast is a remnant of an ancient channel that was used as a pathway in Roman times. The re- moval of such an obstacle and the remodeling of the coeval morphology allows the simulations to reproduce the tsunami penetration up to the lake, thus supporting the hypothesis that the 1783 tsunami entered the lake following the Roman chan- nel track. A further result of this study is that the computed regional tsunami propagation pattern provides a useful hint for assessing tsunami hazards in the Straits of Messina area, which is one of the most exposed areas to tsunami threats in Italy and in the Mediterranean Sea overall.
95 23 - PublicationOpen AccessProgetto SPOT - Sismicità Potenzialmente Innescabile Offshore e Tsunami: Report integrato di fine progetto(2020-03-31)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; Il progetto SPOT (Sismicità Potenzialmente innescabile Offshore e Tsunami) è stato sviluppato con lo scopo di supportare le Autorità italiane nell'applicazione della Direttiva Europea sulla sicurezza delle operazioni in mare nel settore degli idrocarburi (2013/30/EU), su fondi di cui art. 35 del Decreto Legge 83/2012, e dei decreti italiani che ne derivano (Antoncecchi et al., 2019). Il progetto, della durata di 21 mesi, è stato ideato e finanziato dal Ministero dello Sviluppo Economico italiano – Direzione Generale per la sicurezza delle attività minerarie ed energetiche (DGS-UNMIG) nell’ambito della rete di ricerca CLYPEA, con il supporto tecnico del Dipartimento della Protezione Civile nazionale.301 178 - PublicationOpen AccessTsunamis From Submarine Collapses Along the Eastern Slope of the Gela Basin (Strait of Sicily)Geophysical surveys in the eastern slope of the Gela Basin (Strait of Sicily, central Mediterranean) contributed to the identification of several episodes of sediment mass transport, recorded by scars and deposits of various dimensions within the Pleistocene succession. In addition to a huge failure called Gela Slide with volume exceeding 600 km3, the most studied events show volumes estimated between 0.5 and 1.5 km3, which is common to many other submarine landslide deposits in this region and that can therefore be considered as a characteristic value. In this work, the tsunamigenic potential of two of such landslides, the so-called Northern Twin Slide and South Gela Basin Slide located about 50 km apart along the eastern slope of the Gela Basin, are investigated using numerical codes that describe the onset and motion of the slide, as well as the ensuing tsunami generation and propagation. The results provide the wave height of these tsunami events on the coast of southern Sicily and Malta and can be taken as representative of the tsunamigenic potential of typical landslides occurring along the slope of the Gela Basin.
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