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Title: Inversão de Registos de Ruído Sísmico Ambiental para Determinação do Modelo de Estrutura do Vale do Tejo
Authors: Borges, José
Furtado, Augusto
Bezzeghud, Mourad
Caldeira, Bento
Silva, Hugo
Keywords: Ruído sísmico
Estrutura do Vale do Tejo
Issue Date: 2011
Publisher: APMG- Associação Portuguesa de Meteorologia e Geofísica
Abstract: The Lower Tagus Valley is located in the Lower Tagus Sedimentary Basin. The occurrence of earthquakes in this area indicates the presence of seismogenic structures at depth that are still deficiently known due to a thick Cenozoic sedimentary cover. To confirm the velocity model obtained by geophysical and geological data, we use broad-band microtremor measurements and the horizontal to vertical (H/V) spectral ratio method. The H/V curves are inverted, with geological and geophysical constraints, in order to obtain the velocity model above stations located along two profiles: Vila-Franca/Xira-Benavente and Vila Franca de Xira-Samora Correia.
Type: lecture
Appears in Collections:FIS - Comunicações - Em Congressos Científicos Nacionais

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