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Comparing European Seismic Hazard Models

| 2024:1013 | Björn Lund, Uppsala University, Päivi Mäntyniemi, Helsinki University, Amir Sadeghi-Bagherabadi, Helsinki University, Annakaisa Korja, Helsinki University, Jan Lundwall, Vattenfall
In this study, an analysis of the differences in results between the European Seismic Hazard Model 2013 and the new, updated version European Seismic Hazard Model 2020, has been performed. Even though the ESH models are not intended for site-specific hazard analysis, they are important to understand since they form a background to international and national definitions and guidelines.
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\u003Cp\u003EThe European Seismic Hazard Model 2020 (ESHM20) succeeds the 2013 model (ESHM13) using the same approach of state-of-the art procedures homogeneously applied to the entire pan-European region, without country-border issues. The models are not intended as sitespecific hazard models, they are not applicable to annual probabilities of exceedance below 2\u00B710-4 and do not replace national hazard models. For Fennoscandia, the update only increases the earthquake data set by eight events, but the seismic source zones were updated, there was a complete change of ground motions models and the logic tree was significantly expanded.\u003C/p\u003E