{"id":24409,"date":"2026-03-03T15:17:10","date_gmt":"2026-03-03T14:17:10","guid":{"rendered":"https:\/\/lpg-umr6112.fr\/?post_type=tribe_events&#038;p=24409"},"modified":"2026-03-27T10:52:14","modified_gmt":"2026-03-27T09:52:14","slug":"seminar-by-charlotte-groult","status":"publish","type":"tribe_events","link":"https:\/\/lpg-umr6112.fr\/en\/event\/seminar-by-charlotte-groult\/","title":{"rendered":"Seminar by Charlotte Groult (SHOM) &#8211; &#8220;Seismogenic Landslides in the European Alps and Seismic Risks Assessment of Counter- Blasting Operations along the French Coast&#8221;"},"content":{"rendered":"<p>Recent events, such as the Brienz landslide (June 2023) and the collapse at Piz Scerscen (April 2024),<br \/>\nhave highlighted the hazards associated with large mass movements in the European Alps.<br \/>\nMeteorological conditions are known to play a key role in slope stability and their mechanisms have<br \/>\nbeen documented at local scales. However, the spatial and temporal variability of landslide<br \/>\noccurrence at the regional scale remains poorly understood, largely due to the complexity of<br \/>\ninteracting environmental forcings. Seismology provides a unique opportunity to detect rapid mass<br \/>\nmovements with precise timing and to retrieve key source parameters such as velocity, acceleration<br \/>\nand volume, while also offering approximate locations, including in remote areas. We designed an<br \/>\nautomatic AI-based workflow to build instrumental catalog of seismogenic landslides. We applied it<br \/>\nto seismic data from 849 stations across the European Alps over the 2000-2023 period. The resulting<br \/>\ncatalog, comprising approximately 1,000 seismogenic landslides, offers new insights into the spatial<br \/>\nand temporal patterns of landslide activity and their relationship with meteorological drivers.<br \/>\nBeyond natural hazards, seismology also provides valuable tools to investigate human-induced<br \/>\nprocesses. It is estimated that there are 635,000 underwater explosives from World War II and only<br \/>\nabout 20% of these devices have been neutralized so far. Counter-blasting operations are now<br \/>\nconducted regularly and may impact both terrestrial and marine environments. Leveraging seismic<br \/>\nand acoustic data, the MAESTRIA project aims to develop predictive tools to better assess the<br \/>\nenvironmental effects of these operations and support risk-informed decision-making.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Recent events, such as the Brienz landslide (June 2023) and the collapse at Piz Scerscen (April 2024), have highlighted the hazards associated with large mass movements in the European Alps. 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