Acoustic and seismic imaging of the Adra Fault (NE Alboran Sea): in search of the source of the 1910 Adra earthquake

Recently acquired swath-bathymetry data and high-resolution seismic reflection profiles offshore Adra (Almería, Spain) reveal the surficial expression of a NW–SE trending 20 km-long fault, which we termed the Adra Fault. Seismic imaging across the structure depicts a subvertical fault reaching the s...

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Detalhes bibliográficos
Autores: Gràcia Mont, Eulalia, Bartolomé de la Peña, Rafael, Lo Iacono, C., Moreno, X., Stich, Daniel, Bozzano, G., Martínez Loriente, Sara, Perea, H., Martínez Díaz, José Jesús, Díez Tagarro, Susana, Masana, Eulàlia, Dañobeitia, J.J., Tello, O., Sanz, J.L., Carreño, E., Farran, M., Andara, E., Pérez, S., Román Alpiste, M.J.
Formato: artículo
Fecha de publicación:2012
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/44923
Acesso em linha:https://hdl.handle.net/20.500.14352/44923
Access Level:acceso abierto
Palavra-chave:550.34(460.358)
Adra
Almería
Spain
Earthquake
Geodinámica
2507 Geofísica
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oai_identifier_str oai:docta.ucm.es:20.500.14352/44923
network_acronym_str ES
network_name_str España
repository_id_str
spelling Acoustic and seismic imaging of the Adra Fault (NE Alboran Sea): in search of the source of the 1910 Adra earthquakeGràcia Mont, EulaliaBartolomé de la Peña, RafaelLo Iacono, C.Moreno, X.Stich, DanielBozzano, G.Martínez Loriente, SaraPerea, H.Martínez Díaz, José JesúsDíez Tagarro, SusanaMasana, EulàliaDañobeitia, J.J.Tello, O.Sanz, J.L.Carreño, E.Farran, M.Andara, E.Pérez, S.Román Alpiste, M.J.550.34(460.358)AdraAlmeríaSpainEarthquakeGeodinámica2507 GeofísicaRecently acquired swath-bathymetry data and high-resolution seismic reflection profiles offshore Adra (Almería, Spain) reveal the surficial expression of a NW–SE trending 20 km-long fault, which we termed the Adra Fault. Seismic imaging across the structure depicts a subvertical fault reaching the seafloor surface and slightly dipping to the NE showing an along-axis structural variability. Our new data suggest normal displacement of the uppermost units with probably a lateral component. Radiocarbon dating of a gravity core located in the area indicates that seafloor sediments are of Holocene age, suggesting present-day tectonic activity. The NE Alboran Sea area is characterized by significant low-magnitude earthquakes and by historical records of moderate magnitude, such as the Mw = 6.1 1910 Adra Earthquake. The location, dimension and kinematics of the Adra Fault agree with the fault solution and magnitude of the 1910 Adra Earthquake, whose moment tensor analysis indicates normal-dextral motion. The fault seismic parameters indicate that the Adra Fault is a potential source of large magnitude (Mw = 6.5) earthquakes, which represents an unreported seismic hazard for the neighbouring coastal areas.Copernicus Publ.Universidad Complutense de Madrid20122012-01-0120122012-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/44923reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución 3.0 Españahttps://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/449232026-06-02T12:44:21Z
dc.title.none.fl_str_mv Acoustic and seismic imaging of the Adra Fault (NE Alboran Sea): in search of the source of the 1910 Adra earthquake
title Acoustic and seismic imaging of the Adra Fault (NE Alboran Sea): in search of the source of the 1910 Adra earthquake
spellingShingle Acoustic and seismic imaging of the Adra Fault (NE Alboran Sea): in search of the source of the 1910 Adra earthquake
Gràcia Mont, Eulalia
550.34(460.358)
Adra
Almería
Spain
Earthquake
Geodinámica
2507 Geofísica
title_short Acoustic and seismic imaging of the Adra Fault (NE Alboran Sea): in search of the source of the 1910 Adra earthquake
title_full Acoustic and seismic imaging of the Adra Fault (NE Alboran Sea): in search of the source of the 1910 Adra earthquake
title_fullStr Acoustic and seismic imaging of the Adra Fault (NE Alboran Sea): in search of the source of the 1910 Adra earthquake
title_full_unstemmed Acoustic and seismic imaging of the Adra Fault (NE Alboran Sea): in search of the source of the 1910 Adra earthquake
title_sort Acoustic and seismic imaging of the Adra Fault (NE Alboran Sea): in search of the source of the 1910 Adra earthquake
dc.creator.none.fl_str_mv Gràcia Mont, Eulalia
Bartolomé de la Peña, Rafael
Lo Iacono, C.
Moreno, X.
Stich, Daniel
Bozzano, G.
Martínez Loriente, Sara
Perea, H.
Martínez Díaz, José Jesús
Díez Tagarro, Susana
Masana, Eulàlia
Dañobeitia, J.J.
Tello, O.
Sanz, J.L.
Carreño, E.
Farran, M.
Andara, E.
Pérez, S.
Román Alpiste, M.J.
author Gràcia Mont, Eulalia
author_facet Gràcia Mont, Eulalia
Bartolomé de la Peña, Rafael
Lo Iacono, C.
Moreno, X.
Stich, Daniel
Bozzano, G.
Martínez Loriente, Sara
Perea, H.
Martínez Díaz, José Jesús
Díez Tagarro, Susana
Masana, Eulàlia
Dañobeitia, J.J.
Tello, O.
Sanz, J.L.
Carreño, E.
Farran, M.
Andara, E.
Pérez, S.
Román Alpiste, M.J.
author_role author
author2 Bartolomé de la Peña, Rafael
Lo Iacono, C.
Moreno, X.
Stich, Daniel
Bozzano, G.
Martínez Loriente, Sara
Perea, H.
Martínez Díaz, José Jesús
Díez Tagarro, Susana
Masana, Eulàlia
Dañobeitia, J.J.
Tello, O.
Sanz, J.L.
Carreño, E.
Farran, M.
Andara, E.
Pérez, S.
Román Alpiste, M.J.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 550.34(460.358)
Adra
Almería
Spain
Earthquake
Geodinámica
2507 Geofísica
topic 550.34(460.358)
Adra
Almería
Spain
Earthquake
Geodinámica
2507 Geofísica
description Recently acquired swath-bathymetry data and high-resolution seismic reflection profiles offshore Adra (Almería, Spain) reveal the surficial expression of a NW–SE trending 20 km-long fault, which we termed the Adra Fault. Seismic imaging across the structure depicts a subvertical fault reaching the seafloor surface and slightly dipping to the NE showing an along-axis structural variability. Our new data suggest normal displacement of the uppermost units with probably a lateral component. Radiocarbon dating of a gravity core located in the area indicates that seafloor sediments are of Holocene age, suggesting present-day tectonic activity. The NE Alboran Sea area is characterized by significant low-magnitude earthquakes and by historical records of moderate magnitude, such as the Mw = 6.1 1910 Adra Earthquake. The location, dimension and kinematics of the Adra Fault agree with the fault solution and magnitude of the 1910 Adra Earthquake, whose moment tensor analysis indicates normal-dextral motion. The fault seismic parameters indicate that the Adra Fault is a potential source of large magnitude (Mw = 6.5) earthquakes, which represents an unreported seismic hazard for the neighbouring coastal areas.
publishDate 2012
dc.date.none.fl_str_mv 2012
2012-01-01
2012
2012-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/44923
url https://hdl.handle.net/20.500.14352/44923
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Copernicus Publ.
publisher.none.fl_str_mv Copernicus Publ.
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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