Tsunamigenic landslides, southeast Alaska

 

In Oct 2015, a massive landslide struck Tyndall Glacier in southeast Alaska. Most of the debris entered Taan Fiord, an arm of Icy Bay, and triggered one of the largest tsunamis ever recorded on Earth. In summer 2016, the waterSHEDlab took part in an NSF-funded expedition to map the submarine bathymetry of the landslide debris using our Unmanned Surface Vessel Jokull, and to map the landslide debris on dry land.

Check out a story in Hakai Magazine about this event, and others in Norway: https://www.hakaimagazine.com/features/when-mountains-fall-into-the-sea/

Dufresne, A., Geertsema, M., Shugar, D.H.,…ΩBonno, D., and 10 other authors. 2018. Sedimentology and geomorphology of a large tsunamigenic landslide, Taan Fiord, Alaska. Sedimentary Geology. 364: 302-318. DOI: 10.1016/j.sedgeo.2017.10.004