MALISAR/1

Type Oceanographic cruise
Set This cruise is part of the set MALISAR
Ship Le Suroît
Ship owner Ifremer
Dates 18/08/2006 - 30/08/2006
Chief scientist(s) MIGEON Sébastien , LARROQUE Christophe

LABORATOIRE GEOAZUR - UMR 7329 / UR082

250 rue Albert Einstein

CS 10269

Campus Azur

06905 Sophia-Antipolis

+33 (0)4 92 94 26 02

commesi@geoazur.unice.fr

https://www.oca.eu/fr/acc-geoazur
DOI 10.17600/6020120
Objective The MALISAR cruise aimed to study the French and Italian margins of the Ligurian Basin to jointly analyze issues of active tectonics, mass instabilities and sediment transfers in order to highlight their interactions and better determine the gravity-related and seismic hazards. This region presents a high level of urban development and has indeed been regularly subjected to non-negligible seismic activity as shown by ten strong earthquakes in past (1564, 1644, 1818, 1887) and recent (1963, 1981, 1985, 1989, 1995, 2001) history. This recurrent seismic activity, associated with significant sedimentary inputs from the Var, Paillon and Roya rivers, contributes to the regular destabilization of the sediments of the continental slope. These landslides and slips seem to return every >100 years and can potentially cause tsunamis. Thus, the 16 October 1979 event which took place along the Nice slope, caused material damage and human casualties. In order to meet these objectives, a regional study was carried out through a bathymetric/acoustic imaging survey using an EM300 multibeam echosounder combined with high-speed (24-channel) seismic data, HR (72-channel) seismics and a Chirp sediment sounder. The related programs are: GDR Marges, GIS Curare, ACI Global hazards and changes, and ANR Quantitative seismic hazard assessment.

Data managed by SISMER

Bibliography

Publications

Ritz Jean-François, Baize Stéphane, Audin Laurence, Authémayou Christine, Graveleau Fabien, Kaub Caroline, Lacan Pierre, Leclerc Frédérique, Larroque Christophe, Manchuel Kevin, Mugnier Jean-Louis, Ortuño Maria, Rizza Magali, Vassallo Riccardo, Antoine Pierre, Arroucau Pierre, Billant Jérémy, Bollinger Laurent, Ferry Matthieu, Fillon Charlotte, Geoffroy Laurent, Jomard Hervé, Le Roy Pascal, Locht Jean-Luc, Migeon Sebastien, Perrin Clément, Perrot Julie, Ratzov Gueorgui, Reicherter Klaus, Soubigou OlivierORCID, Vergniault Christophe, Viaplana-Muzas Marc, Van Der Woerd Jérôme (2021). New perspectives in studying active faults in metropolitan France: the “Active faults France” (FACT/ATS) research axis from the Resif-Epos consortium. Comptes Rendus Geoscience, 353(S1), 381-412. Publisher's official version : https://doi.org/10.5802/crgeos.98 , Open Access version : https://archimer.ifremer.fr/doc/00749/86114/


Cattaneo AntonioORCID, Miramontes Elda, Samalens Kevin, Garreau PierreORCID, Caillaud Matthieu, Marsset Bruno, Corradi Nicola, Migeon Sebastien (2017). Contourite identification along Italian margins: The case of the Portofino drift (Ligurian Sea). Marine And Petroleum Geology, 87, 137-147. Publisher's official version : https://doi.org/10.1016/j.marpetgeo.2017.03.026 , Open Access version : https://archimer.ifremer.fr/doc/00378/48977/


Soulet Q., Migeon Sebastien, Gorini C., Rubino J-L, Raisson F., Bourges P. (2016). Erosional versus aggradational canyons along a tectonically-active margin: The northeastern Ligurian margin (western Mediterranean Sea). Marine Geology, 382, 17-36. https://doi.org/10.1016/j.margeo.2016.09.015


Ioualalen Mansour, Larroque Christophe, Scotti Oona, Daubord Camille (2014). Tsunami Mapping Related to Local Earthquakes on the French–Italian Riviera (Western Mediterranean). Pure And Applied Geophysics, 171(7), 1423-1443. https://doi.org/10.1007/s00024-013-0699-1


Hassoun V., Martin J., Migeon S., Larroque C., Cattaneo AntonioORCID, Eriksson M., Sanchez-Cabeza J. A., Mercier De Lepinay B., Liong Wee Kwong L., Levy I., Heimburger L. E., Miquel J. C. (2014). Searching for the Record of Historical Earthquakes, Floods and Anthropogenic Activities in the Var Sedimentary Ridge (NW Mediterranean). Advances in natural and technological hazards research, 37, 571-581. https://doi.org/10.1007/978-3-319-00972-8_51


Larroque Christophe, Scotti Oona, Ioualalen Mansour (2012). Reappraisal of the 1887 Ligurian earthquake (western Mediterranean) from macroseismicity, active tectonics and tsunami modelling. Geophysical Journal International, 190(1), 87-104. https://doi.org/10.1111/j.1365-246X.2012.05498.x


Migeon Sebastien, Mulder Thierry, Savoye Bruno, Sage Francoise (2012). Hydrodynamic processes, velocity structure and stratification in natural turbidity currents: Results inferred from field data in the Var Turbidite System. Sedimentary Geology, 245, 48-62. https://doi.org/10.1016/j.sedgeo.2011.12.007


Migeon Sebastien, Cattaneo AntonioORCID, Hassoun Virginie, Dano Alexandre, Casedevant Aurelie, Ruellan Etienne (2012). Failure Processes and Gravity-Flow Transformation Revealed by High-Resolution AUV Swath Bathymetry on the Nice Continental Slope (Ligurian Sea). Advances in Natural and Technological Hazards Research, 31, 451-461. https://doi.org/10.1007/978-94-007-2162-3_40


Larroque Christophe, Mercier De Lepinay Bernard, Migeon Sebastien (2011). Morphotectonic and fault-earthquake relationships along the northern Ligurian margin (western Mediterranean) based on high resolution, multibeam bathymetry and multichannel seismic-reflection profiles. Marine Geophysical Research, 32(1-2), 163-179. https://doi.org/10.1007/s11001-010-9108-7


Migeon Sebastien, Cattaneo AntonioORCID, Hassoun Virginie, Larroque Christophe, Corradi Nicola, Fanucci Francesco, Dano Alexandre, de Lepinay Bernard Mercier, Sage Francoise, Gorini Christian (2011). Morphology, distribution and origin of recent submarine landslides of the Ligurian Margin (North-western Mediterranean): some insights into geohazard assessment. Marine Geophysical Research, 32(1-2), 225-243. Publisher's official version : https://doi.org/10.1007/s11001-011-9123-3 , Open Access version : https://archimer.ifremer.fr/doc/00043/15387/


Ioualalen M., Migeon Sebastien, Sardoux O. (2010). Landslide tsunami vulnerability in the Ligurian Sea: case study of the 1979 October 16 Nice international airport submarine landslide and of identified geological mass failures. Geophysical Journal International, 181(2), 724-740. https://doi.org/10.1111/j.1365-246X.2010.04572.x


References of Articles published in other Periodicals or Scientific Works acclaimed in the Field

Larroque Christophe, Scotti Oona, Ioualalen Mansour (2013). Un séisme historique revu à la hausse. La Recherche, (473), 55-57.


Migeon Sebastien, Cattaneo AntonioORCID, Hassoun Virginie, Larroque Christophe, Corradi Nicola, Fanucci Francesco, Mercier De Lepinay Bernard, Sage Françoise, Gorini Christian (2011). Distribution and causes of recent submarine landslides along the Ligurian margin (northwestern Mediterranean) inferred from very high-resolution data: some insights into geohazard assessment. CIESM workshop monographs, (42), 67-73.