Impact of landslides on transportation routes during the 2016–2017 Central Italy seismic sequence

摘要: Hundreds of landslides were triggered by the mainshocks (up to Mw 6.5) that occurred in 2016 Central Italy during seismic sequence originated Apennine and ended January 2017. These studied via field-based investigation remote sensing techniques weeks immediately after occurred. EarthQuake-triggered Landslides (EQtLs) mostly consisted rockfalls rockslides. The spatial distribution examined EQtLs with respect epicentres main shocks resulted very good agreement available empirical curves maximum distance vs. magnitude. Based on collected dataset, approximately 70% impacted transportation routes (national, provincial secondary roads linking towns mountain villages) since they principally detached from road cuts. caused traffic interruption, some delayed rescue vehicles reaching zones most damaged earthquakes; moreover, temporary isolation several localities epicentre area. Even if it seems obvious cuts favour slope failure under shaking conditions, dataset reported here is first one for where such an effect quantified. Moreover, a statistical analysis was conducted explore relationships between selected causative factors, including both natural (i.e., earthquake terrain) anthropogenic factors presence trackways). Among considered combinations (both anthropogenic), this study demonstrates occurrence uphill at bottom deep incised V-shaped valleys strongly influenced clustering EQtL Italy.