A First Appraisal of the Seismogenic and Tsunamigenic Potential of the Main Active Fault Systems of the Western Mediterranean: Using Fault Characterization to Improve Tsunami Modelling

A First Appraisal of the Seismogenic and Tsunamigenic Potential of the Main Active Fault Systems of the Western Mediterranean: Using Fault Characterization to Improve Tsunami Modelling

American Geophysical Union Fall Meeting, 12-16 December 2022, Chicago

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Main Authors: Gómez de la Peña, L., Ranero, César R., Azañón, José Miguel, Maesano, Francesco, Volpe, Manuela, Scala, Antonio, Booth-Rea, Guillermo, Gràcia, Eulàlia, Basili, Roberto, Romano, Fabrizio, Piatanesi, Alessio
Format: comunicación de congreso biblioteca
Language:English
Published: American Geophysical Union 2022-12-13
Online Access:http://hdl.handle.net/10261/333223
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spelling dig-icm-es-10261-3332232023-08-14T10:33:11Z A First Appraisal of the Seismogenic and Tsunamigenic Potential of the Main Active Fault Systems of the Western Mediterranean: Using Fault Characterization to Improve Tsunami Modelling Gómez de la Peña, L. Ranero, César R. Azañón, José Miguel Maesano, Francesco Volpe, Manuela Scala, Antonio Booth-Rea, Guillermo Gràcia, Eulàlia Basili, Roberto Romano, Fabrizio Piatanesi, Alessio American Geophysical Union Fall Meeting, 12-16 December 2022, Chicago The Alboran Basin is located in the westernmost Mediterranean Sea. This basin was formed during the Miocene, and since the late Miocene, has been deformed due to the Iberia – Africa tectonic plates convergence, producing the contractive reorganization of some structures at the basin. Thus, the Alboran Basin is a seismically active area, which hosts the plate boundary between the European and African tectonic plates. This plate boundary has been traditionally considered a wide deformation zone, in which several small faults are accommodating the deformation. Based on a modern set of active seismic data, we were able for the first time to quantify the total slip accommodated by the most prominent tectonic structures of the area, late Miocene - early Pliocene in age. Our results show that the estimated total slip accommodated by the main fault systems may be similar (with error bounds) to the estimated plate convergence value since the Messinian time (~24 km). Thus, slip on that faults may have accommodated most of the Iberian – African plate convergence during the Plio-Quaternary, revealing that the contractive reorganization of the Alboran basin is focused on a few first-order structures that act as lithospheric boundaries, rather than widespread and diffuse along the entire basin. These results have implications not only for kinematic and geodynamic models, but also for seismic and tsunami hazard assessments. Using the most complete dataset until the date, we performed a revision of the geometry and characteristics of the main fault systems offshore. Based on this data, we perform a first appraisal of the seismogenic and tsunamigenic potential of the main fault systems offshore. Our simulations show that the seismogenic and tsunamigenic potential of the offshore structures of the Alboran Basin may be underestimated, and a further characterization of their associated hazard is needed Peer reviewed 2023-08-14T10:32:45Z 2023-08-14T10:32:45Z 2022-12-13 comunicación de congreso American Geophysical Union Fall Meeting (2022) http://hdl.handle.net/10261/333223 en Sí none American Geophysical Union
institution ICM ES
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country España
countrycode ES
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libraryname Biblioteca del ICM España
language English
description American Geophysical Union Fall Meeting, 12-16 December 2022, Chicago
format comunicación de congreso
author Gómez de la Peña, L.
Ranero, César R.
Azañón, José Miguel
Maesano, Francesco
Volpe, Manuela
Scala, Antonio
Booth-Rea, Guillermo
Gràcia, Eulàlia
Basili, Roberto
Romano, Fabrizio
Piatanesi, Alessio
spellingShingle Gómez de la Peña, L.
Ranero, César R.
Azañón, José Miguel
Maesano, Francesco
Volpe, Manuela
Scala, Antonio
Booth-Rea, Guillermo
Gràcia, Eulàlia
Basili, Roberto
Romano, Fabrizio
Piatanesi, Alessio
A First Appraisal of the Seismogenic and Tsunamigenic Potential of the Main Active Fault Systems of the Western Mediterranean: Using Fault Characterization to Improve Tsunami Modelling
author_facet Gómez de la Peña, L.
Ranero, César R.
Azañón, José Miguel
Maesano, Francesco
Volpe, Manuela
Scala, Antonio
Booth-Rea, Guillermo
Gràcia, Eulàlia
Basili, Roberto
Romano, Fabrizio
Piatanesi, Alessio
author_sort Gómez de la Peña, L.
title A First Appraisal of the Seismogenic and Tsunamigenic Potential of the Main Active Fault Systems of the Western Mediterranean: Using Fault Characterization to Improve Tsunami Modelling
title_short A First Appraisal of the Seismogenic and Tsunamigenic Potential of the Main Active Fault Systems of the Western Mediterranean: Using Fault Characterization to Improve Tsunami Modelling
title_full A First Appraisal of the Seismogenic and Tsunamigenic Potential of the Main Active Fault Systems of the Western Mediterranean: Using Fault Characterization to Improve Tsunami Modelling
title_fullStr A First Appraisal of the Seismogenic and Tsunamigenic Potential of the Main Active Fault Systems of the Western Mediterranean: Using Fault Characterization to Improve Tsunami Modelling
title_full_unstemmed A First Appraisal of the Seismogenic and Tsunamigenic Potential of the Main Active Fault Systems of the Western Mediterranean: Using Fault Characterization to Improve Tsunami Modelling
title_sort first appraisal of the seismogenic and tsunamigenic potential of the main active fault systems of the western mediterranean: using fault characterization to improve tsunami modelling
publisher American Geophysical Union
publishDate 2022-12-13
url http://hdl.handle.net/10261/333223
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