Active tectonics around the Mediterranean region: site studies and

More than 25 years have passed since the definition of Active Tectonics as "tectonic movements that are expected to
occur within a future time span of concern to society", formulated in a milestone book by the National Research Council
on this topic (Studies in Geophysics, Active Tectonics, National Academy Press, Washington, D.C. 1986), and those words have
still to be considered the most suitable and exhaustive way to explain this branch of the Earth Sciences. Indeed only
bridging together basic studies ("tectonic movements"), rates of occurrence ("time span") and hazard assessment
("society") can we fully evaluate ongoing tectonic activity and its associated hazards. The broad Mediterranean Sea region
is a paradigmatic area from this point of view, as on one hand this region displays in a relatively limited geographic extent a
great variety of tectonic processes such as plate collision, subduction, volcanic activity, large-magnitude earthquakes, active
folding and faulting, vertical uplift and/or subsidence. On the other hand, all the above mentioned tectonic processes can
potentially affect a total population of about 450 million, mostly concentrated in fast-growing urban areas and/or close to
industrial compounds and critical facilities often located nearby hazard sources.