Research unit of Soil Dynamics and Geotechnical Earthquake Engineering
Published September 7, 2022 | Version v1
Conference paper Open

Probabilistic seismic hazard and risk assessment of Thessaloniki, Greece

Authors/Creators

  • 1. Aristotle University, Thessaloniki, Greece

Description

Seismic hazard and risk assessment are of significant importance for many sectors, e.g., the insurance industry, as they can significantly affect many socio-economic factors. The efficiency of the seismic hazard and risk assessment process is based on the accuracy of the models used and their capability to manage to some extent the multi-nature sources of uncertainties involved in all stages. In this study, we use a fully probabilistic method to evaluate the seismic hazard for Thessaloniki, Greece, and the seismic risk of its residential buildings. For the seismic hazard assessment, we perform an Event-Based PSHA using as input the European Seismic Hazard Model ESHM20 and a very detailed site model developed for Thessaloniki using the available data from the microzonation study. We present seismic hazard maps for two different intensity measures and a set of return periods and hazard curves at four different locations with different site conditions. For the seismic risk, we perform a Stochastic Event-Based Probabilistic Seismic Damage Analysis for the residential buildings of Thessaloniki using the European Seismic Risk Model (ESRM20) vulnerability models. Seismic risk results are presented in terms of expected structural damage and economic losses for various return periods.

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Additional details

Funding

European Commission
ISTOS - CENTER OF INNOVATIVE SOLUTIONS FOR BUILDING SAFETY – ISTOS Center of Excellence 952300

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