Sedimentary evidence of tsunamis in New Caledonia, southwest Pacific

Paris, Raphaël; Pelletier, Bernard; Roger, Jean; Wassmer, Patrick; Sabatier, Pierre

doi:10.1016/j.margeo.2023.107116

Cited by 3 publications

(1 citation statement)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The study of marine paleotsunami sediments has been the focus of attention in recent decades, with numerous publications documenting the investigation of paleotsunamis sediment archives at several marine sites. They investigated the recurrence rate (Kempf et al., 2017; Migeon et al., 2017; Monecke et al., 2008) and runup height (Bondevik et al., 1997; Peterson et al., 2011) and determined the inundation distance of past tsunami events using sedimentary records (Abe et al., 2012; Goto et al., 2019; Ishimura & Yamada, 2019; Paris et al., 2023; Switzer et al., 2012). However, investigating their lacustrine counterparts has received little attention so far (Kremer et al., 2012, 2021; Nigg et al., 2021; Sammartini et al., 2019).…”

Section: Introductionmentioning

confidence: 99%

Numerical Reconstruction of Landslide Paleotsunami Using Geological Records in Alpine Lake Aiguebelette

Zafar,

Dutykh,

Sabatier

et al. 2024

JGR Solid Earth

Self Cite

View full text Add to dashboard Cite

Mass movements and delta collapses are significant sources of tsunamis in lacustrine environments, impacting human societies enormously. Paleotsunamis studies play an essential role in understanding historical events and their consequences, along with their return periods. This study investigates a paleotsunami induced by a subaqueous mass movement during the Younger Dryas to Early Holocene transition, ca. 11,700 years ago in Lake Aiguebelette (NW Alps, France). Utilizing high‐resolution seismic and bathymetric surveys associated with sedimentological, geochemical, and magnetic analyses, we uncovered a paleotsunami triggered by a seismically induced mass transport deposit. Numerical simulations of mass movement have been conducted using a visco‐plastic Herschel‐Bulkley rheological model and corresponding tsunami wave modeled with dispersive and nondispersive models. Our findings reveal for the first time that dispersive effects may be negligible for subaqueous landslides in a relatively small lake. This research reconstructs a previously unreported paleotsunami event and enhances our understanding of tsunami dynamics in lacustrine environments.

show abstract