Mapping Subaqueous Landslide Hazards in the Central-Western Algerian Margin

Summary Terrestrial landslides are geohazard that can be easily observed and identified whereas subaqueous landslides are not, due to their location, yet they are as destructive and dangerous than their onshore equivalent. Area with active fault can trigger subaqueous landslide, damage and destroy seabed infrastructure and generate tsunami. Many studies have identified subaqueous landslide located in the Algerian margin and Mediterranean Sea and have linked their triggering to active faults earthquakes inland and offshore. The study aims are to map the landslides between Mostaganem and Tipaza and to inventory the different categories identified. Finally, a subaqueous landslide hazard map resumes fifty slides and complex of slides are identified.