Abstract
The purpose of this research is to estimate the rockfall and debris flow hazard assessment of the SW escarpment of the Montagna del Morrone (Abruzzo, Central Italy). The study investigated the geomorphology of the escarpment, focusing on the type and distribution of the present landforms. Particular attention was devoted to the slope gravity landforms widely developed in this area, where the effective activity of the gravitational processes is mainly related to the rockfall and debris flows and documented by numerous landslides over time. Working from orography, hydrography, lithology, and geomorphology, the landslide distribution and their potential invasion areas were evaluated through two specific numerical modeling software. RAMMS and Rockyfor3D calculation codes were used in order to analyze the debris flow and rockfall type of landslides, respectively. The obtained results are of great interest when evaluating the hazard assessment in relation to the potential landslides. Moreover, the geographic information systems (GIS) provide a new geomorphological zonation mapping, with the identification of the detachment and certain and/or possible invasion areas of the landslide blocks. This method provides an effective tool to support the correct territorial planning and the management of the infrastructural settlements present in the area and human safety.
Highlights
Landslides are remarkable natural hazards linked to the combination of geological, geomorphological, and climatic factors in response to triggering mechanisms, mostly represented by heavy rainfall events, seismicity, or human action [1]
The present work focuses on the landslide hazard assessment of the SW escarpment of the Montagna del Morrone, one of the main Central Apennines ridge located in the Abruzzo Region (Central Italy)
Landslide hazard assessment of the SW escarpment of the Montagna del Morrone ridge was estimated through RAMMS and Rockyfor3D software in order to investigate respectively debris-flow and rockfall hazard
Summary
Landslides are remarkable natural hazards linked to the combination of geological, geomorphological, and climatic factors (instability factors) in response to triggering mechanisms, mostly represented by heavy rainfall events, seismicity, or human action [1]. The landslide hazard and risk have become a theme of major interest due to the rising consciousness of the socio-economic implication of the landslides (economic, human, and environmental losses worldwide) and the increased impaction of the urbanization development [2]. The shallow landslides hazard assessment represents an important aspect of land management. It requires the estimate of both the territory propensity to fail and the probability of the occurrence of the phenomena in time [4]. The present work focuses on the landslide hazard assessment of the SW escarpment of the Montagna del Morrone, one of the main Central Apennines ridge located in the Abruzzo Region (Central Italy). The Montagna del Morrone ridge is located between the Maiella Massif to the NE and the Sulmona Basin to the west. It is characterized by a landscape that evolved as a result of the continuous combination of tectonics, regional uplift, and selective erosion [5,6,7,8,9]
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