Modeling Multi-hazard Assessment in the Western Corinthian Gulf, Central Greece, Using Machine Learning and Gis.
Description:
Multi-hazard assessment modeling comprises an essential tool in plans that aim to mitigate the impact of future natural disasters. For a particular area they are generated by combining assessment maps for different types of natural hazards. The HOMEROS project advances the field of multi-hazard assessment by integrating seismological, geodetic, geomorphological, and engineering geological analyses. Leveraging Open Science practices, the project systematically utilizes high-resolution datasets from regions of elevated hazard in Greece, providing a robust framework for the evaluation and mitigation of natural disaster risks. This study reports on multi hazard assessments conducted at the Western Gulf of Corinth (Central Greece) to inform regional risk mitigation strategies. A variety of spatial datasets with recorded landslide and flood events along with delineated hazard zones of the study area were used. Datasets are publicly available through Zenodo. The Random Forest Algorithm supported by a Geographical Information System was utilized to combine seismic, landslide, and flood hazards into a single multi-hazard map. The landslide-prone areas are distributed across the western, southern, and central regions of the study area, while flood-prone zones are predominantly situated in the north. Seismic hazard results (PGA for return period of 475 years) were obtained through a logic tree approach that combines source area and fault sources with Greek Ground Motion Models. The highest values (~400 cm/s2) were obtained in the northwestern section of the study area, close to the Gulf. The study identifies the northern, southern, western, and central areas as exhibiting the highest multi-hazard susceptibility.
Acknowledgements: The authors acknowledge the OSCARS project, which has received funding from the European Commission’s Horizon Europe Research and Innovation programme under grant agreement No. 10112975.
Session: Advancing Seismic Hazard and Risk Assessment through Multi-Disciplinary Approaches [Poster]
Type: Poster
Date: 4/15/2026
Presentation Time: 08:00 AM (local time)
Presenting Author: George Bathrellos
Student Presenter: No
Invited Presentation:
Poster Number: 38
Authors
George Bathrellos Presenting Author Corresponding Author gbathrellos@upatras.gr University of Patras |
Stefania-Alexandra Andriopoulou-Mounteanou s_andriopouloumounteanou@ac.upatras.gr University of Patras |
Zacharo Paliou zaxhpalhou@gmail.com University of Patras |
Hariklia Skilodimou hskilodimou@upatras.gr University of Patras |
Angelos Zymvragakis azymvragakis@geol.uoa.gr National and Kapodistrian University of Athens |
Ioannis Spingos ispingos@geol.uoa.gr National and Kapodistrian University of Athens |
George Kaviris gkaviris@geol.uoa.gr National and Kapodistrian University of Athens |
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Modeling Multi-hazard Assessment in the Western Corinthian Gulf, Central Greece, Using Machine Learning and Gis.
Category
Advancing Seismic Hazard and Risk Assessment through Multi-Disciplinary Approaches