The Earthquake Risk Model of Switzerland ERM-CH23

• DOI: 10.5194/egusphere-2023-1504
• Publication Date: 2023-07-27T04:45:25Z
• Authors: Athanasios N. Pap...; Philippe Roth; Laurentiu Danciu; Paolo Bergamo; Francesco Panzera; Donat Fäh; Carlo Cauzzi; Blaise Duvernay; Alireza Khodaverdian; Pierino Lestuzzi; Ömer Odabaşi; Ettore Fagà; Paolo Bazzurro; Michèle Marti; Nadja Valenzuela; Irina Dallo; Nicolas Schmid; Philip Kästli; Florian Haslinger; Stefan Wiemer
• Keywords: G; Environmental sciences; QE1-996.5; 13. Climate action; Geography. Anthropology. Recreation; GE1-350; Geology; Environmental technology. Sanitary engineering; TD1-1066

Abstract. Understanding seismic risk at both the national and sub-national levels is essential for devising effective strategies and interventions aimed at its mitigation. The National Earthquake Risk Model of Switzerland (ERM-CH23), released in early 2023, is the culmination of a multidisciplinary effort aiming to achieve, for the first time, a comprehensive assessment of the potential consequences of earthquakes on the Swiss building stock and population. Having been developed as a national model, ERM-CH23 relies on very high-resolution site-amplification and building exposure datasets, which distinguishes it from most regional models to-date. Several loss types are evaluated, ranging from structural/nonstructural and contents economic losses, to human losses, such as deaths, injuries and displaced population. In this paper, we offer a snapshot of ERM-CH23, summarize key details on the development of its components, highlight important results and provide comparisons with other models.