RT Journal Article
T1 Sismotectónica en relación con la Zona de Fractura Azores –Gibraltar: Análisis del terremoto de 12 de febrero de 2007, SO del Banco de Gorringe
T1 Seismotectonics related to the Azores – Gibraltar Fracture Zone: Analysis of the February 12th 2007 earthquake, SWGorringe Bank
A1 Alonso Chaves, Francisco Manuel
A1 García Navarro, Encarnación
A1 Mantero Romero, Elena María
A1 Fernández Rodríguez, Carlos
A1 Camacho Cerro, Manuel Alejandro
A1 Morales González, Juan Antonio
AB This work deals with the analysis of the seismicity and tectonic evolution of the eastern end of the Azores– Gibraltar Fracture Zone. The location of the main seismogenetic areas in this region is related to thecomplex geometry of the boundary between the Iberian and African lithospheric plates. To the west of theSan Vicente Cape the seismicity can be related to a local compression at the Gorringe Bank. A detailedseismotectonic analysis allows the geological interpretation of the position of the hypocenter for the 12thFebruary 2007 earthquake. It had Mw 6.0 and was placed on a fault having a NNE-SSW strike and a highdip to NW. The fault shows an oblique displacement (sinistral) and locates in the margin of the Horseshoeabyssal basin. Displacement along this fault is here tentatively related to complex deformation in the outerswell of an incipient downgoing plate. This can be the first indication of the beginning of subduction of thenorthern part of the African plate under the continental margin of Iberia. On the other hand, an analysisof the location of earthquakes having Mw >6.0 generated to the SW of the San Vicente Cape and theestimated isoseismal map has been made. It can be noted the importance of the uppermost crustalmaterials on the seismic intensity measurement. Sea waves resulting from these earthquakes and measuredin the littoral of the Huelva province have an average velocity of propagation of approximately 600 km/h
YR 2007
FD 2007
LK http://hdl.handle.net/10272/8378
UL http://hdl.handle.net/10272/8378
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 13 jul 2026