Acoustic and seismic imaging of the active Adra Fault (NE Alboran Sea): In search for the source of the 1910 Adra Earthquake

Gràcia, Enric; Bartolomé de la Peña, Rafael; Lo Iacono, Claudio; Moreno Mota, Ximena; Stich, D.; Martínez-Díaz, José J.; Bozzano, Graziella; Martínez Loriente, Sara; Perea Manera, Héctor; Masana, Eulàlia; Dañobeitia, Juan José; Tello, O.; Sanz, J. L.; Carreño, E.

Acoustic and seismic imaging of the active Adra Fault (NE Alboran Sea): In search for 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 sub-vertical fault reaching the...

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Autores:	Gràcia, Enric, Bartolomé de la Peña, Rafael, Lo Iacono, Claudio, Moreno Mota, Ximena, Stich, D., Martínez-Díaz, José J., Bozzano, Graziella, Martínez Loriente, Sara, Perea Manera, Héctor, Masana, Eulàlia, Dañobeitia, Juan José, Tello, O., Sanz, J. L., Carreño, E.
Tipo de recurso:	artículo
Estado:	Versión publicada
Fecha de publicación:	2012
País:	España
Institución:	Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:	Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:	oai:recercat.cat:2445/98460
Acceso en línea:	https://hdl.handle.net/2445/98460
Access Level:	acceso abierto
Palabra clave:	Tectònica de plaques Falles (Geologia) Terratrèmols Sismologia Plate tectonics Faults (Geology) Earthquakes Seismology

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spelling	Acoustic and seismic imaging of the active Adra Fault (NE Alboran Sea): In search for the source of the 1910 Adra EarthquakeGràcia, EnricBartolomé de la Peña, RafaelLo Iacono, ClaudioMoreno Mota, XimenaStich, D.Martínez-Díaz, José J.Bozzano, GraziellaMartínez Loriente, SaraPerea Manera, HéctorMasana, EulàliaDañobeitia, Juan JoséTello, O.Sanz, J. L.Carreño, E.Tectònica de plaquesFalles (Geologia)TerratrèmolsSismologiaPlate tectonicsFaults (Geology)EarthquakesSeismologyRecently 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 sub-vertical 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 areasEuropean Geosciences Union (EGU)2016201620122016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion18 p.application/pdfhttps://hdl.handle.net/2445/98460Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: http://dx.doi.org/10.5194/nhess-12-3255-2012Natural Hazards And Earth System Sciences, 2012, vol. 12, num. 11, p. 3255-3268http://dx.doi.org/10.5194/nhess-12-3255-2012cc-by (c) Gràcia, E. et al., 2012http://creativecommons.org/licenses/by/3.0/esinfo:eu-repo/semantics/openAccessoai:recercat.cat:2445/984602026-05-29T05:05:01Z
dc.title.none.fl_str_mv	Acoustic and seismic imaging of the active Adra Fault (NE Alboran Sea): In search for the source of the 1910 Adra Earthquake
title	Acoustic and seismic imaging of the active Adra Fault (NE Alboran Sea): In search for the source of the 1910 Adra Earthquake
spellingShingle	Acoustic and seismic imaging of the active Adra Fault (NE Alboran Sea): In search for the source of the 1910 Adra Earthquake Gràcia, Enric Tectònica de plaques Falles (Geologia) Terratrèmols Sismologia Plate tectonics Faults (Geology) Earthquakes Seismology
title_short	Acoustic and seismic imaging of the active Adra Fault (NE Alboran Sea): In search for the source of the 1910 Adra Earthquake
title_full	Acoustic and seismic imaging of the active Adra Fault (NE Alboran Sea): In search for the source of the 1910 Adra Earthquake
title_fullStr	Acoustic and seismic imaging of the active Adra Fault (NE Alboran Sea): In search for the source of the 1910 Adra Earthquake
title_full_unstemmed	Acoustic and seismic imaging of the active Adra Fault (NE Alboran Sea): In search for the source of the 1910 Adra Earthquake
title_sort	Acoustic and seismic imaging of the active Adra Fault (NE Alboran Sea): In search for the source of the 1910 Adra Earthquake
dc.creator.none.fl_str_mv	Gràcia, Enric Bartolomé de la Peña, Rafael Lo Iacono, Claudio Moreno Mota, Ximena Stich, D. Martínez-Díaz, José J. Bozzano, Graziella Martínez Loriente, Sara Perea Manera, Héctor Masana, Eulàlia Dañobeitia, Juan José Tello, O. Sanz, J. L. Carreño, E.
author	Gràcia, Enric
author_facet	Gràcia, Enric Bartolomé de la Peña, Rafael Lo Iacono, Claudio Moreno Mota, Ximena Stich, D. Martínez-Díaz, José J. Bozzano, Graziella Martínez Loriente, Sara Perea Manera, Héctor Masana, Eulàlia Dañobeitia, Juan José Tello, O. Sanz, J. L. Carreño, E.
author_role	author
author2	Bartolomé de la Peña, Rafael Lo Iacono, Claudio Moreno Mota, Ximena Stich, D. Martínez-Díaz, José J. Bozzano, Graziella Martínez Loriente, Sara Perea Manera, Héctor Masana, Eulàlia Dañobeitia, Juan José Tello, O. Sanz, J. L. Carreño, E.
author2_role	author author author author author author author author author author author author author
dc.subject.none.fl_str_mv	Tectònica de plaques Falles (Geologia) Terratrèmols Sismologia Plate tectonics Faults (Geology) Earthquakes Seismology
topic	Tectònica de plaques Falles (Geologia) Terratrèmols Sismologia Plate tectonics Faults (Geology) Earthquakes Seismology
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 sub-vertical 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 2016 2016 2016
dc.type.none.fl_str_mv	info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion
format	article
status_str	publishedVersion
dc.identifier.none.fl_str_mv	https://hdl.handle.net/2445/98460
url	https://hdl.handle.net/2445/98460
dc.language.none.fl_str_mv	Inglés
language_invalid_str_mv	Inglés
dc.relation.none.fl_str_mv	Reproducció del document publicat a: http://dx.doi.org/10.5194/nhess-12-3255-2012 Natural Hazards And Earth System Sciences, 2012, vol. 12, num. 11, p. 3255-3268 http://dx.doi.org/10.5194/nhess-12-3255-2012
dc.rights.none.fl_str_mv	cc-by (c) Gràcia, E. et al., 2012 http://creativecommons.org/licenses/by/3.0/es info:eu-repo/semantics/openAccess
rights_invalid_str_mv	cc-by (c) Gràcia, E. et al., 2012 http://creativecommons.org/licenses/by/3.0/es
eu_rights_str_mv	openAccess
dc.format.none.fl_str_mv	18 p. application/pdf
dc.publisher.none.fl_str_mv	European Geosciences Union (EGU)
publisher.none.fl_str_mv	European Geosciences Union (EGU)
dc.source.none.fl_str_mv	Articles publicats en revistes (Dinàmica de la Terra i l'Oceà) reponame:Recercat. Dipósit de la Recerca de Catalunya instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str	Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str	Recercat. Dipósit de la Recerca de Catalunya
collection	Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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Acoustic and seismic imaging of the active Adra Fault (NE Alboran Sea): In search for the source of the 1910 Adra Earthquake

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