English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/64147
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

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

AuthorsGràcia, Eulàlia ; Bartolomé, Rafael ; Lo Iacono, Claudio ; Moreno, Ximena ; Martínez-Díaz, J. J. ; Martínez-Loriente, S. ; Perea, Héctor ; Díez Tagarró, Susana ; Dañobeitia, Juan José ; EVENT-SHELF Team
Issue DateNov-2012
PublisherEuropean Geosciences Union
CitationNatural Hazards and Earth System Sciences 12(11): 3255-3267 (2012)
AbstractRecently 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
Description13 pages, 7 figures, 1 table
Publisher version (URL)http://dx.doi.org/10.5194/nhess-12-3255-2012
URIhttp://hdl.handle.net/10261/64147
DOI10.5194/nhess-12-3255-2012
ISSN1561-8633
E-ISSN1684-9981
Appears in Collections:(ICM) Artículos
(UTM) Artículos
(IGEO) Artículos
Files in This Item:
File Description SizeFormat 
Gracia_et_al_2012.pdf8,25 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.