Central Apennines and its earthquakes: from sedimentology and active tectonics to seismic microzonation studies

The Central Apennines represents a wonderful record of a sll acve complex stragraphic and structural history, as tesfied by recent earthquakes (L'Aquila 2009, Mw 6.1; Amatrice-Norcia 2016, Mw 6.5). Normal faults acvity contributed to the formaon of tectonic basins that hosted connental deposits, which recorded the longterm traces at surface of large earthquakes. Moreover local seismic amplificaon has been observed, as result of peculiar geological and structural condions. The field trip will illustrate examples of earthquakeinduced effects due to the recent seismic sequence, in relaon to the local stragraphic and structural seng. The main steps of the geological evoluon of Central Apennines, from Jurassic up to the Present, will be invesgated which will help define contrasng responses to earthquakes between the cover terrains and the seismic bedrock. Evidences for regional upli and acve faulng, which interplayed with Quaternary climac changes to feed the mountain chain into its present shape will be illustrated. The effects of recent earthquakes on towns and villages will be described considering the contribuon of sediments characterizaon and the results of the recent advanced seismic microzonaon studies.