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Landslide‐generated tsunamis runup at the coast of a conical island: New physical model experiments

2009; American Geophysical Union; Volume: 114; Issue: C1 Linguagem: Inglês

10.1029/2008jc004858

2156-2202

Marcello Di Risio, Paolo De Girolamo, Giorgio Bellotti, Andrea Panizzo, Francesco Aristodemo, Matteo Gianluca Molfetta, Antonio Petrillo,

Coastal and Marine Dynamics

This paper presents new physical model experiments on tsunamis generated by landslides at the coast of a conical island. The experiments have been carried out in a large wave tank; the radius of the island coastline and the falling height of the landslide have been varied during the experimental campaign. The landslide is reproduced by a solid body shaped as a half of an ellipsoid. Tsunami runup is measured using special wave gauges; a detailed analysis of the runup along the coastline is presented, with special attention to the role of each wave in the packet and to the evolution of the envelope of the first group of waves.