29 Jun 2023
 | 29 Jun 2023
Status: a revised version of this preprint is currently under review for the journal NHESS.

Regional-scale landslide risk assessment in Central-Asia

Francesco Caleca, Chiara Scaini, William Frodella, and Veronica Tofani

Abstract. Landslides are widespread phenomenon that occur in any terrestrial area with slopes, causing massive property damage and, in the worst-case scenario, human losses. This propension to suffer losses is particularly high for developing countries due to their urban development, population growth and drastic land use changes. Social and economic consequences of landslides can be reduced through detailed planning and management strategies, which can be aided by risk analysis. In this study, we performed a detailed quantitative risk analysis for landslides in the whole Central-Asia (4,000,000 km2). Landslide-induced risk was computed in terms of exposed population and expected economic losses to buildings and linear infrastructures (roads and railways) adopting a 200 m spatial resolution. The purpose of our study is to produce the first regional-scale landslide risk assessment for Central-Asia in order to inform regional-scale risk mitigation strategies and it represents an advance step in the landslide risk analysis for extremely broad areas.

Francesco Caleca et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on nhess-2023-106', Anonymous Referee #1, 12 Jul 2023
    • AC1: 'Reply on RC1', Francesco Caleca, 07 Sep 2023
  • RC2: 'Comment on nhess-2023-106', Mirela-Adriana Anghelache, 20 Jul 2023
    • AC2: 'Reply on RC2', Francesco Caleca, 07 Sep 2023
  • RC3: 'Comment on nhess-2023-106', Anonymous Referee #3, 04 Aug 2023
    • AC3: 'Reply on RC3', Francesco Caleca, 07 Sep 2023

Francesco Caleca et al.

Francesco Caleca et al.


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Short summary
Landslide risk analysis is a powerful tool because it allows to identify where high losses could occur due to a landslide event. The purpose of our work was to provide the first regional-scale analysis of landslide risk for Central-Asia and it surely represents an advance step in the field of risk analysis for very large areas. Our findings show a total risk of about 3.9 billion USD and a mean risk of 0.6 million USD per square kilometer.