From Global to Local and from Local to Global: Examples of Event Scenarios in Europe

The chapter provides two comprehensive scenarios of hazardous events, impacts and damages referring to two opposite scales: the first one explores the local differences of a global hazard whilst the second addresses the potential regional, national and European implications of a local disaster. In detail, the Italian Authors have focused on the Vesuvius’ scenario, which provides a qualitative description of a potential volcanic event which might occur in the Campania Region, Southern Italy, and of its main consequences. The scenario is addressed at highlighting how, during an eruption, different volcanic phenomena characterized by different lengths and affecting heterogeneous territorial targets, may induce numerous types of damages, failures and troubles at different geographical scales, from the local one, whose extension largely depends on the hazard scale, up to a European or even a global scale, as recently demonstrated by the eruptions of the Icelandicl volcano.