Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/4802
Título: The 1531 Lisbon Earthquake: A Tsunami In the Tagus Estuary?
Autor: Baptista, Maria Ana Carvalho Viana
Miranda, Jorge Miguel
Batllo, J.
Palavras-chave: Source Parameters
Intraplate Basin
Data: Out-2014
Editora: Seismological Society of America
Citação: BAPTISTA, Maria Ana Carvalho Viana; MIRANDA, J. M.; BATLLO, J. – the 1531 Lisbon earthquake: a tsunami in the Tagus estuary? Bulletin of the Seismological Society of America. ISSN: 0037-1106. Vol. 104, nr. 5 (2014) p. 2149-2161.
Resumo: On 26 January 1531, a strong-magnitude earthquake heavily impacted Lisbon downtown. Immediately after the earthquake, the eyewitnesses reported large waves in the Tagus estuary, mainly north of the city and along the northern bank of the river. Descriptions include large impacts on ships anchored in the estuary and even morphological changes in the riverbed. We present a synthesis of the available information concerning both the earthquake and the water disturbance as a basis for the discussion of the probable tectonic source and the magnitude of the associated river oscillations. We hypothesize that the initial disturbance of the water can be attributed to the coseismic deformation of the estuary riverbed, and we use a nonlinear shallow water model to simulate the tsunami propagation and inundation. We show that the Vila Franca de Xira fault is the most probable source of the 1531 event. The largest inundation effects of the model correlate well with the historical descriptions: the impact is relevant in the inner Tagus estuary, but inundation in downtown Lisbon is small.
Peer review: yes
URI: http://hdl.handle.net/10400.21/4802
DOI: 10.1785/0120130316
ISSN: 0037-1106
Aparece nas colecções:ISEL - Eng. Civil - Artigos

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