||Auffret Gérard-André, Auzende Jean-Marie, Gennesseaux M., Monti S., Pastouret Léo, Pautot G., Vanney J.R.
||NATO Workshop on Marine Slides and Other Mass Movements, Algarve (Portugal) (Saxov, S; Nieuwenhuis, JK (eds)), 1980-12 , P. 349-354
||On October 19, 1979 off Nice, the upper continental shelf has been affected by a catastrophic event (Gennesseaux et al., 1980). (a) At 2 p.m. (approximate time), following a lowering of the sea level, a tsunami of several meters amplitude reached the Coast line south of Antibes. This was followed during 4 hours by several oscillations of decreasing amplitude, that were felt on a shore length of about 100 km. (b) About the same time, an embanked area 300 m long and wide, collapsed in a few seconds ; after the event the sea-floor in that area was found at a depth of 50 meters. (c) At 17h45 TU and 22h00 TU, two telephone cables have been broken 80 and 110 km off Nice respectively (fig. 1). (d) No earthquake was registered by the Monaco Observatory during this time period. After this event, we surveyed the area with Sea-Beam and observed the walls and canyons floors with the submersible Cyana. [NOT CONTROLLED OCR]