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AGU: Geophysical Research Letters

 

Index Terms

  • Marine Geology and Geophysics: Submarine landslides
  • Geographic Location: Europe
  • Volcanology: Volcanic hazards and risks

Abstract

Large submarine landslides offshore Mt. Etna

Maria Teresa Pareschi

Istituto Nazionale di Geofisica e Vulcanologia, Pisa, Italy

Enzo Boschi

Istituto Nazionale di Geofisica e Vulcanologia, Pisa, Italy

Francesco Mazzarini

Istituto Nazionale di Geofisica e Vulcanologia, Pisa, Italy

Massimiliano Favalli

Istituto Nazionale di Geofisica e Vulcanologia, Pisa, Italy

High resolution seismic data, we collected in the Ionian sea, reveal large submarine landslide deposits offshore from Mt. Etna (Italy), spatially consistent with the eastern flank collapse of this volcano. A large debris-avalanche deposit, we relate to the Valle del Bove scar, displays long offshore run-outs (till 20 km) and a volume of a few tens of cubic kilometres (16–21 km3). Other landslide deposits are also imaged, in particular a striking unique record of the relative timing of multiple submarine large slump events.

Received 16 February 2006; accepted 17 May 2006; published 1 July 2006.

Citation: Pareschi, M. T., E. Boschi, F. Mazzarini, and M. Favalli (2006), Large submarine landslides offshore Mt. Etna, Geophys. Res. Lett., 33, L13302, doi:10.1029/2006GL026064.

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