Seismotectonics and crustal structure in the Southern Dominican Republic offshore margin: implications on the tsunami potential

Many coastal areas of the southern Dominican Republic experience considerable population pressure accompanied by important economic activity. The southern offshore margin is characterized by significant seismicity and active geological processes. Because of the proximity of the seismogenic and tsuna...

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Autores: Granja Bruña, José Luis, Gorosabel Araus, J.M., Brink, Uri ten, Muñoz Martín, Alfonso, Rodríguez Zurrunero, Álvaro, Leroy, Sylvie, López Venegas, A., Llorente Isidro, M., Macías Sánchez, J., Sánchez Linares, C., Carbo Gorosabel, Andrés
Tipo de documento: artigo
Data de publicação:2025
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositório:Docta Complutense
Idioma:inglês
OAI Identifier:oai:docta.ucm.es:20.500.14352/121163
Acesso em linha:https://hdl.handle.net/20.500.14352/121163
Access Level:Acceso aberto
Palavra-chave:550.344.4(729.3)
551.24(729.3)
Earthquake
Tsunamigenic potential
Dominican Republic
Geología
Geofísica
Geodinámica
2506.20 Geología Estructural
2507 Geofísica
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spelling Seismotectonics and crustal structure in the Southern Dominican Republic offshore margin: implications on the tsunami potentialGranja Bruña, José LuisGorosabel Araus, J.M.Brink, Uri tenMuñoz Martín, AlfonsoRodríguez Zurrunero, ÁlvaroLeroy, SylvieLópez Venegas, A.Llorente Isidro, M.Macías Sánchez, J.Sánchez Linares, C.Carbo Gorosabel, Andrés550.344.4(729.3)551.24(729.3)EarthquakeTsunamigenic potentialDominican RepublicGeologíaGeofísicaGeodinámica2506.20 Geología Estructural2507 GeofísicaMany coastal areas of the southern Dominican Republic experience considerable population pressure accompanied by important economic activity. The southern offshore margin is characterized by significant seismicity and active geological processes. Because of the proximity of the seismogenic and tsunamigenic areas to the coastal regions, large seismic events are likely to result in significant damage. The interpretation of seismotectonic, structural, and morphological data allowed us to characterize the tsunamigenic features. The major tectonic sources involve large shallow faults that are capable of producing earthquakes with magnitudes ranging from Mw7.0 to Mw8.1. These seismic sources could release enough energy to deform and occasionally rupture the seafloor: Muertos frontal thrust, Muertos mega‐splay and the Muertos Trough fault zone. In addition, these tectonic sources show significant vertical seafloor deformation with the potential to generate tsunamis. The steeper seafloor slopes show frequent active gravitational processes, but generally have a relatively small size and their tsunamigenic potential is therefore low. However, the Complutense slump is an exception showing ≈30 km3 of mobilized material located along a large active fault. If a similar volume is rapidly mobilized in a single slope failure, it could generate a significant tsunami. The southern coast of the Dominican Republic faces a clear risk due to its proximity to potential tsunamigenic sources (30–50 km), resulting in a very short lead‐time for warning. The results of this study provide basic information for future tsunami simulations that ultimately allow practical implementation of tsunami preparedness and protection, and for coastal planning and marine resource use.American Geophysical Union (AGU)Universidad Complutense de Madrid20252025-06-0220252025-06-02journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/121163reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/1211632026-06-02T12:44:21Z
dc.title.none.fl_str_mv Seismotectonics and crustal structure in the Southern Dominican Republic offshore margin: implications on the tsunami potential
title Seismotectonics and crustal structure in the Southern Dominican Republic offshore margin: implications on the tsunami potential
spellingShingle Seismotectonics and crustal structure in the Southern Dominican Republic offshore margin: implications on the tsunami potential
Granja Bruña, José Luis
550.344.4(729.3)
551.24(729.3)
Earthquake
Tsunamigenic potential
Dominican Republic
Geología
Geofísica
Geodinámica
2506.20 Geología Estructural
2507 Geofísica
title_short Seismotectonics and crustal structure in the Southern Dominican Republic offshore margin: implications on the tsunami potential
title_full Seismotectonics and crustal structure in the Southern Dominican Republic offshore margin: implications on the tsunami potential
title_fullStr Seismotectonics and crustal structure in the Southern Dominican Republic offshore margin: implications on the tsunami potential
title_full_unstemmed Seismotectonics and crustal structure in the Southern Dominican Republic offshore margin: implications on the tsunami potential
title_sort Seismotectonics and crustal structure in the Southern Dominican Republic offshore margin: implications on the tsunami potential
dc.creator.none.fl_str_mv Granja Bruña, José Luis
Gorosabel Araus, J.M.
Brink, Uri ten
Muñoz Martín, Alfonso
Rodríguez Zurrunero, Álvaro
Leroy, Sylvie
López Venegas, A.
Llorente Isidro, M.
Macías Sánchez, J.
Sánchez Linares, C.
Carbo Gorosabel, Andrés
author Granja Bruña, José Luis
author_facet Granja Bruña, José Luis
Gorosabel Araus, J.M.
Brink, Uri ten
Muñoz Martín, Alfonso
Rodríguez Zurrunero, Álvaro
Leroy, Sylvie
López Venegas, A.
Llorente Isidro, M.
Macías Sánchez, J.
Sánchez Linares, C.
Carbo Gorosabel, Andrés
author_role author
author2 Gorosabel Araus, J.M.
Brink, Uri ten
Muñoz Martín, Alfonso
Rodríguez Zurrunero, Álvaro
Leroy, Sylvie
López Venegas, A.
Llorente Isidro, M.
Macías Sánchez, J.
Sánchez Linares, C.
Carbo Gorosabel, Andrés
author2_role author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 550.344.4(729.3)
551.24(729.3)
Earthquake
Tsunamigenic potential
Dominican Republic
Geología
Geofísica
Geodinámica
2506.20 Geología Estructural
2507 Geofísica
topic 550.344.4(729.3)
551.24(729.3)
Earthquake
Tsunamigenic potential
Dominican Republic
Geología
Geofísica
Geodinámica
2506.20 Geología Estructural
2507 Geofísica
description Many coastal areas of the southern Dominican Republic experience considerable population pressure accompanied by important economic activity. The southern offshore margin is characterized by significant seismicity and active geological processes. Because of the proximity of the seismogenic and tsunamigenic areas to the coastal regions, large seismic events are likely to result in significant damage. The interpretation of seismotectonic, structural, and morphological data allowed us to characterize the tsunamigenic features. The major tectonic sources involve large shallow faults that are capable of producing earthquakes with magnitudes ranging from Mw7.0 to Mw8.1. These seismic sources could release enough energy to deform and occasionally rupture the seafloor: Muertos frontal thrust, Muertos mega‐splay and the Muertos Trough fault zone. In addition, these tectonic sources show significant vertical seafloor deformation with the potential to generate tsunamis. The steeper seafloor slopes show frequent active gravitational processes, but generally have a relatively small size and their tsunamigenic potential is therefore low. However, the Complutense slump is an exception showing ≈30 km3 of mobilized material located along a large active fault. If a similar volume is rapidly mobilized in a single slope failure, it could generate a significant tsunami. The southern coast of the Dominican Republic faces a clear risk due to its proximity to potential tsunamigenic sources (30–50 km), resulting in a very short lead‐time for warning. The results of this study provide basic information for future tsunami simulations that ultimately allow practical implementation of tsunami preparedness and protection, and for coastal planning and marine resource use.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-06-02
2025
2025-06-02
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/121163
url https://hdl.handle.net/20.500.14352/121163
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Geophysical Union (AGU)
publisher.none.fl_str_mv American Geophysical Union (AGU)
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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