The Zannone Giant Pockmark: First evidence of a giant complex seeping structure in shallow-water, central Mediterranean Sea, Italy

Some speculations on processes originating the observed features are explored, including possible occurrence of multiple eruption events, processes of fluidization-liquefaction and minor slides that may have modified the original morphology. Factors peculiar to the study area - shallow depth, thin sedimentary cover resting on a faulted rocky basement, seeping occurring through non-cohesive sandy sediments - appear to have been key to the formation and morphology of the Zannone giant pockmark.