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Provedor de dados:  ArchiMer
País:  France
Título:  Deep sea in situ excess pore pressure and sediment deformation off NW Sumatra and its relation with the December 26, 2004 Great Sumatra-Andaman Earthquake
Autores:  Sultan, Nabil
Cattaneo, Antonio
Sibuet, Jean-claude
Schneider, Jean-luc
Data:  2009-06
Ano:  2009
Palavras-chave:  Tsunami
Slope failure
Pore pressure
Resumo:  The swath bathymetric data acquired during the "Sumatra Aftershocks" cruise from the Sunda trench in the Indian Ocean to the north of the Sumatra Island imaged several scars and deposits. In situ pore pressure measurements using the Ifremer piezometer and coring demonstrate that high excess pore pressure and sediment deformation was generated by a recent event in the scar of the slope failure zone identified by J.T. Henstock and co-authors. This excess pore pressure is localized in the upper sedimentary layers and is not related to an interplate subduction process. Numerical simulations of the hydrological system that take into account the hydro-mechanical properties of the upper sediment layer show that the excess pore pressure and sediment deformations could be generated at the time of the December 26, 2004 Great Sumatra Earthquake.
Tipo:  Text
Idioma:  Inglês

Editor:  Springer
Formato:  application/pdf
Fonte:  International Journal of Earth Sciences (1437-3254) (Springer), 2009-06 , Vol. 98 , N. 4 , P. 823-837
Direitos:  2009 Springer. Part of Springer Science+Business Media

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