Inventory of fluid emissions in Italian Seas

Fluid emissions affecting the seabed derive from the presence of endogenous liquids and gases of volcanic, hydrothermal and biogenic origin, present in areas of extinct or active volcanism, in tectonically active areas and in areas where sedimentation rates are high. The Geological Survey of Italy - ISPRA tackled this topic concerning national submerged areas, within the European Project EMODnet Geology, aimed to gather and harmonize existing data and metadata from European waters, in order to create a national database of geological events, according to European standards. The EMODnet Geology Portal allows to browse through geological databases of European marine areas, including information, represented as digital maps, on seafloor sediments and underlying rocks, coastal migration, geological events, mineral resources, submerged landscapes. Geological events, led by the Geological Survey of Italy, includes submarine landslides, earthquakes, volcanic structures, Quaternary tectonics, tsunamis and fluid emissions. Insofar as submarine fluid emissions are concerned, to date there is no Italian national inventory.
The volume gathers reports from scientists who have observed fluid emissions during their researches aimed at different purposes. For this reason the present inventory only reports surface evidences of the phenomenon and focuses on its geographical distribution.

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