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Gràcia, E. [Verfasser:in]; Bartolome, R. [Verfasser:in]; Lo Iacono, C. [Verfasser:in]; Moreno, X. [Verfasser:in]; Stich, D. [Verfasser:in]; Martínez-Diaz, J. J. [Verfasser:in]; Bozzano, G. [Verfasser:in]; Martínez-Loriente, S. [Verfasser:in]; Perea, H. [Verfasser:in]; Diez, S. [Verfasser:in]; Masana, E. [Verfasser:in]; Dañobeitia, J. J. [Verfasser:in]; Tello, O. [Verfasser:in]; Sanz, J. L. [Verfasser:in]; Carreño, E. [Verfasser:in]

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

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  • Medientyp: E-Artikel
  • Titel: Acoustic and seismic imaging of the Adra Fault (NE Alboran Sea): in search of the source of the 1910 Adra earthquake
  • Beteiligte: Gràcia, E. [Verfasser:in]; Bartolome, R. [Verfasser:in]; Lo Iacono, C. [Verfasser:in]; Moreno, X. [Verfasser:in]; Stich, D. [Verfasser:in]; Martínez-Diaz, J. J. [Verfasser:in]; Bozzano, G. [Verfasser:in]; Martínez-Loriente, S. [Verfasser:in]; Perea, H. [Verfasser:in]; Diez, S. [Verfasser:in]; Masana, E. [Verfasser:in]; Dañobeitia, J. J. [Verfasser:in]; Tello, O. [Verfasser:in]; Sanz, J. L. [Verfasser:in]; Carreño, E. [Verfasser:in]
  • Erschienen: Copernicus Publications, 2012
  • Sprache: Englisch
  • DOI: https://doi.org/10.5194/nhess-12-3255-2012
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  • Anmerkungen: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Beschreibung: 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.
  • Zugangsstatus: Freier Zugang