A landslide susceptibility map forecasts where landslides are expected to occur in the future based on terrain conditions, including local morphological, geological, and land use settings. Using different colors, a landslide susceptibility map shows forecasted levels of landslide susceptibility in a region. Using specific software, LSMMs can be prepared whene new landslides or new environmental (e.g., morphological, geological, land use) data is available for a region of interest. Existing LSMMs can be validated using event inventory maps prepared after a major triggering event.
Methods and technologies
CNR-IRPI prepares LSMMs at scales ranging from 1:100,000 (smaller scale) to 1:25,000 (larger scale) in periods from hours to days after the landslide inventory and terrain (e.g., morphological, geological, land use) data become available. The quality of the landslide and terrain information controls the quality of the LSMMs. Independent landslide information (e.g., an event landslide inventory map) are used to validate the LSMMs
