Numerical simulation of submarine landslides and generated tsunamis: application to the on-going Mayotte seismo-volcanic crisis

Poulain, Pablo; Friant, Anne Le; Pedreros, Rodrigo; Mangeney, A.; Filippini, Andrea Gilberto; Grandjean, Gilles; Lemoine, Anne; Fernández-Nieto, Enrique D.; Díáz, Manuel; Peruzzetto, Marc

doi:10.5802/crgeos.138

Cited by 7 publications

(3 citation statements)

References 101 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recent volcano-seismic events in unexpected places or with significant unforeseen impacts challenge our understanding of volcanic activity. First, these events suggest that the role of volcanic activity on local natural hazards should be reconsidered [1][2][3][4][5], promoting specific studies on the reduction in risk [6] associated with volcanic activity [7][8][9][10][11][12]. Second, the potential interrelationship between short-term volcanic activity and long-term volcanotectonic evolution challenges our understanding of volcanic processes and the evolution of Earth's surface.…”

Section: Introductionmentioning

confidence: 99%

Relative Sea Level and Coastal Vertical Movements in Relation to Volcano-Tectonic Processes at Mayotte Island, Indian Ocean

Gargani

2024

GeoHazards

View full text Add to dashboard Cite

During the last 10 kyr, significant subsidence and uplift occurred on Mayotte Island in the Comoros archipelago (Indian Ocean), but the role of volcanic processes in Holocene vertical movements has been neglected in the research so far. Here, we show that an abrupt subsidence of 6–10 m occurred between 9.4 and 10 kyr ago, followed by an uplift of the same amplitude at a rate of 9 mm/yr from 8.1 to 7 kyr ago. A comparison of the relative sea level of Mayotte and a reference sea level curve for the global ocean has been conducted using a modeling approach. This shows that an increasing and decreasing pressure at depth, equivalent to the process caused by a deep magma reservoir (50–70 km), was responsible for ~6–10 m subsidence and 6–10 m uplift, whereas loading by new volcanic edifices caused subsidence during the last few thousand years. Surface movements and deep pressure variations may be caused by pulses from the deep mantle, related to superplume activity, but uncertainties and unknowns about these phenomena are still present and further studies are needed. A better understanding of the volcano-tectonic cycle may improve assessments of volcanic hazards.

show abstract

Section: Introductionmentioning

confidence: 99%

Relative Sea Level and Coastal Vertical Movements in Relation to Volcano-Tectonic Processes at Mayotte Island, Indian Ocean

Gargani

2024

GeoHazards

View full text Add to dashboard Cite

show abstract

“…However, thanks to their relatively low computational cost, they can be used at field scale to reproduce real geophysical events on complex topographies. Since the pioneering work of [35][36][37], they have been widely used for physics-based landslide hazard assessment [38][39][40][41]. Note that unlike the first option using discrete models, the continuous formulation of the Navier-Stokes and thin-layer models cannot represent blocking effects between particles or high frequency fluctuations related to grain-grain and grain-bottom collisions.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulations of granular dam break: Comparison between discrete element, Navier-Stokes, and thin-layer models

Martin,

Peruzzetto,

Viroulet

et al. 2023

Phys. Rev. E

Self Cite

View full text Add to dashboard Cite

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

show abstract

“…Being prepared and preventing damages in case of seismic shaking can be explored for crisis management [Taillefer et al, 2022]. The unstable submarine slopes of Mayotte could be prone to landslides themselves triggering tsunamis [Poulain et al, 2022].…”

mentioning

confidence: 99%

Special issue Comptes-Rendus Geoscience: The Mayotte seismo-volcanic crisis of 2018–2021 in the eastern Comoros archipelago (Mozambique channel)

Woerd¹,

Famin²,

Humler³

2023

Comptes Rendus. Géoscience

View full text Add to dashboard Cite

Numerical simulation of submarine landslides and generated tsunamis: application to the on-going Mayotte seismo-volcanic crisis

Abstract: Numerical simulation of submarine landslides and generated tsunamis: application to the on-going Mayotte seismo-volcanic crisis Simulation numérique de glissements sous-marins et des tsunamis associés : application à la crise sismo-volcanique en cours à Mayotte

Cited by 7 publications

References 101 publications

Relative Sea Level and Coastal Vertical Movements in Relation to Volcano-Tectonic Processes at Mayotte Island, Indian Ocean

Relative Sea Level and Coastal Vertical Movements in Relation to Volcano-Tectonic Processes at Mayotte Island, Indian Ocean

Numerical simulations of granular dam break: Comparison between discrete element, Navier-Stokes, and thin-layer models

Special issue Comptes-Rendus Geoscience: The Mayotte seismo-volcanic crisis of 2018–2021 in the eastern Comoros archipelago (Mozambique channel)

Contact Info

Product

Resources

About