Gràcia, 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.2016-05-102016-05-1020121561-8633https://hdl.handle.net/2445/98460Recently 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 areas18 p.application/pdfengcc-by (c) Gràcia, E. et al., 2012http://creativecommons.org/licenses/by/3.0/esTectònica de plaquesFalles (Geologia)TerratrèmolsSismologiaPlate tectonicsFaults (Geology)EarthquakesSeismologyinfo:eu-repo/semantics/article6180972016-05-10info:eu-repo/semantics/openAccess