Proceedings of the 12th International INQUA meeting on paleoseismology, active tectonic and archaeoseismology

496 PATA Days 2024 D I S C U S S I O N The results of the analogue experimentation contribute to Stage 1 in Wassaf (2023), which proposes a design strategy involving an alluvial mitigation park based on the hazard of mass removal in the event of earthquakes and/or precipitation (Fig. 5). According to the results, this park should be built on the slopes of Lo Rojas Hill in Coronel, and the material containment measures would be located as part of the park's design. The research, given the location of the case study, includes a Stage 2 where a residential development of "resilient collective housing" is designed (Fig. 6), and measures for vertical evacuation in the event of tsunami flooding are proposed (deeper insight is presented in Wassaf, 2023). Based on the above, it is proposed that these measures in the event of an earthquake will act beneficially in both cases where it triggers mass removal and a tsunami. Analogue experimentation prompts discussions on enhancing the precision and thoroughness of experimentation execution. Specifically, the scaling and analogue materials to be used must be analyzed, as in this case, the landslide was triggered by water flow, but the analogous materials have been previously tested for dry granular collapses. Despite the limitations of the analogue modelling technique, previous authors point out that in Fig. 4: Results of the Case B model, selected as the best alternative for alluvial containment. (1) Fine-grained sand, (2) Coarse-grained sand. Fig. 5: Diagram in profile of an alluvial mitigation park (green area in this figure). Fig. 5: Diagram in profile of an alluvial mitigation park (green area in this figure).