From strike-slip to reverse reactivation: The Crevillente Fault System and seismicity in the Bullas-Mula area (Betic Cordillera, SE Spain)

Several major N80ºE faults occur in the Bullas-Mula area (SE Spain). These faults and the numerous thrust slices of the Sierra de Ricote can be related to the movements of the Crevillente (or Cadiz-Alicante) fault system, which causes the westward displacement of the Betic Internal Zone and part of...

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Detalles Bibliográficos
Autores: Sanz de Galdeano, Carlos, Buforn, Elisa
Tipo de recurso: artículo
Fecha de publicación:2005
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/2477
Acceso en línea:http://hdl.handle.net/10261/2477
Access Level:acceso abierto
Palabra clave:Betic Cordillera
Crevillente Fault
Mula earthquakes
Neotectonics
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spelling From strike-slip to reverse reactivation: The Crevillente Fault System and seismicity in the Bullas-Mula area (Betic Cordillera, SE Spain)Sanz de Galdeano, CarlosBuforn, ElisaBetic CordilleraCrevillente FaultMula earthquakesNeotectonicsSeveral major N80ºE faults occur in the Bullas-Mula area (SE Spain). These faults and the numerous thrust slices of the Sierra de Ricote can be related to the movements of the Crevillente (or Cadiz-Alicante) fault system, which causes the westward displacement of the Betic Internal Zone and part of the External Zone. These faults moved with dextral strike-slip from Late Burdigalian to Early Tortonian. From this time on, the 1 position changed from a WNW-ESE direction to approximately N-S, giving rise to movements with a new reverse character. The focal mechanisms of the 1999 Mula earthquakes indicate a N80ºE nodal plane, and their pressure axes also coincide with the 1 direction existing from the Late Miocene and deduced from mesotectonic analysis at many points of the region. There is also good coincidence between their epicentral position and the fault traces. The Bullas earthquakes that occurred in 2002 are not directly related to the Crevillente faults, although their stress-pressure axes coincide with the 1 direction reported there.This study corresponds to the project REN2003-05178-C03- 01, the research group RNM217 (Junta de Andalucía) and the “Acción Especial BTE2001-5230-E”. The figures have been drawn by A. Caballero. P. Ruano helped in the program of stress determinations. We are grateful for the accurate correction and the suggestions of Drs. González Lodeiro (Granada), Martínez Díaz (Madrid) and Santanach (Barcelona), together with the editor’s corrections which have greatly improved the former version of the manuscript.Peer reviewedConsejo Superior de Investigaciones Científicas (España)Universidad de Barcelona200720072005info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/2477reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/24772026-05-22T06:33:51Z
dc.title.none.fl_str_mv From strike-slip to reverse reactivation: The Crevillente Fault System and seismicity in the Bullas-Mula area (Betic Cordillera, SE Spain)
title From strike-slip to reverse reactivation: The Crevillente Fault System and seismicity in the Bullas-Mula area (Betic Cordillera, SE Spain)
spellingShingle From strike-slip to reverse reactivation: The Crevillente Fault System and seismicity in the Bullas-Mula area (Betic Cordillera, SE Spain)
Sanz de Galdeano, Carlos
Betic Cordillera
Crevillente Fault
Mula earthquakes
Neotectonics
title_short From strike-slip to reverse reactivation: The Crevillente Fault System and seismicity in the Bullas-Mula area (Betic Cordillera, SE Spain)
title_full From strike-slip to reverse reactivation: The Crevillente Fault System and seismicity in the Bullas-Mula area (Betic Cordillera, SE Spain)
title_fullStr From strike-slip to reverse reactivation: The Crevillente Fault System and seismicity in the Bullas-Mula area (Betic Cordillera, SE Spain)
title_full_unstemmed From strike-slip to reverse reactivation: The Crevillente Fault System and seismicity in the Bullas-Mula area (Betic Cordillera, SE Spain)
title_sort From strike-slip to reverse reactivation: The Crevillente Fault System and seismicity in the Bullas-Mula area (Betic Cordillera, SE Spain)
dc.creator.none.fl_str_mv Sanz de Galdeano, Carlos
Buforn, Elisa
author Sanz de Galdeano, Carlos
author_facet Sanz de Galdeano, Carlos
Buforn, Elisa
author_role author
author2 Buforn, Elisa
author2_role author
dc.subject.none.fl_str_mv Betic Cordillera
Crevillente Fault
Mula earthquakes
Neotectonics
topic Betic Cordillera
Crevillente Fault
Mula earthquakes
Neotectonics
description Several major N80ºE faults occur in the Bullas-Mula area (SE Spain). These faults and the numerous thrust slices of the Sierra de Ricote can be related to the movements of the Crevillente (or Cadiz-Alicante) fault system, which causes the westward displacement of the Betic Internal Zone and part of the External Zone. These faults moved with dextral strike-slip from Late Burdigalian to Early Tortonian. From this time on, the 1 position changed from a WNW-ESE direction to approximately N-S, giving rise to movements with a new reverse character. The focal mechanisms of the 1999 Mula earthquakes indicate a N80ºE nodal plane, and their pressure axes also coincide with the 1 direction existing from the Late Miocene and deduced from mesotectonic analysis at many points of the region. There is also good coincidence between their epicentral position and the fault traces. The Bullas earthquakes that occurred in 2002 are not directly related to the Crevillente faults, although their stress-pressure axes coincide with the 1 direction reported there.
publishDate 2005
dc.date.none.fl_str_mv 2005
2007
2007
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/2477
url http://hdl.handle.net/10261/2477
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
Universidad de Barcelona
publisher.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
Universidad de Barcelona
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.81155

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