In:
Communications Earth & Environment, Springer Science and Business Media LLC, Vol. 3, No. 1 ( 2022-10-19)
Kurzfassung:
Pre-Holocene landslides and tsunami deposits are commonly observed on continental margins and oceanic islands. However, scarce evidence has thus far linked pre-historic submarine landslides to particular tsunami events. This work focuses on an 839 km 3 submarine landslide that occurred in the South China Sea at 0.54 Ma. Bathymetric restorations show that the paleoshoreline at 0.54 Ma was 180–580 km to the south of its present-day location. In such a setting, the tsunami triggered by the landslide at 0.54 Ma was able to generate larger waves with shorter arrive times when compared to an equivalent landslide-generated tsunami under present-day conditions. This observation proves that tsunamis generated by submarine landslides during sea-level lowstands caused catastrophic damage to the South China Sea coast in the past, and so will do in future sea-level lowstands. This study stresses the importance of restoring paleoshorelines for detailed analysis of historic landslide-generated tsunamis.
Materialart:
Online-Ressource
ISSN:
2662-4435
DOI:
10.1038/s43247-022-00572-w
Sprache:
Englisch
Verlag:
Springer Science and Business Media LLC
Publikationsdatum:
2022
ZDB Id:
3037243-4
