The Plio-Quaternary activity of the Yusuf Fault System (Alboran Sea; Westernmost Mediterranean): From 3D deep structure to seafloor geomorphology

The Plio-Quaternary activity of the Yusuf Fault System (Alboran Sea; Westernmost Mediterranean): From 3D deep structure to seafloor geomorphology

European Geosciences Union (EGU) General Assembly, 23-27 May 2022, Vienna, Austria

Saved in:
Bibliographic Details
Main Authors: Perea, Héctor, Martínez-Loriente, S., Llopart, Jaume, Canari Bordoy, Ariadna, Gómez de la Peña, L., Bartolomé, Rafael, Gràcia, Eulàlia
Format: comunicación de congreso biblioteca
Language:English
Published: European Geosciences Union 2022-05-25
Online Access:http://hdl.handle.net/10261/333270
Tags: Add Tag
No Tags, Be the first to tag this record!
id dig-icm-es-10261-333270
record_format koha
spelling dig-icm-es-10261-3332702023-08-16T09:29:21Z The Plio-Quaternary activity of the Yusuf Fault System (Alboran Sea; Westernmost Mediterranean): From 3D deep structure to seafloor geomorphology Perea, Héctor Martínez-Loriente, S. Llopart, Jaume Canari Bordoy, Ariadna Gómez de la Peña, L. Bartolomé, Rafael Gràcia, Eulàlia European Geosciences Union (EGU) General Assembly, 23-27 May 2022, Vienna, Austria The identification and seismic characterization of the active structures in the Alboran Sea (westernmost Mediterranean) are essential to evaluate better the exposure of the South Iberian Peninsula and Maghreb coasts to different natural hazards. The Alboran Sea accommodates part of the present-day crustal deformation related to the NW-SE convergence (4-5 mm/yr) between the African and Eurasian plates. The area is characterized by low to moderate magnitude instrumental seismicity. However, large earthquakes (I > IX and M > 6.0) have occurred in this region in historical and recent times (i.e., 1522 Almeria, 1790 Oran, 1910 Adra, 1994 and 2004 Al-Hoceima or 2016 Al-Idrissi earthquakes). The dextral strike-slip Yusuf Fault System (YFS) is one of the largest active faults in the Alboran Sea and its seismogenic and tsunamigenic hazard needs to be characterized. The fault system trends WNW-ESE and has a length of ~150 km. Using multi-scale bathymetric (ranging from m to cm) and seismic data and different morphological and seismic analysis tools (i.e., slope or relief image maps), we have imaged and characterized the fault system. The analysis of this dataset reveals that the YFS is a complex structure composed of an array of strike-slip faults. The 3D structural model shows that most of the identified faults reach up and offset the seafloor and the Upper Quaternary sedimentary units. The current morphology of the seafloor is a consequence of the Plio-Quaternary tectonic evolution that have resulted in the formation of a large pull-apart basin, which is deeper than the surrounding areas, a topographic ridge, an elongated depression and morphologic lineaments following its trend. The dataset also images several submarine landslides scars, mainly on the steeper slopes surrounding the pull-apart basin. In addition, the analysis of ultra-high resolution data acquired along the Yusuf lineament with AUV has revealed the presence of a series of en-echelon scarps with heights ranging from few centimeters to less than 10 meter. Seismic profiles across these scarps show that they are related to different fault strands of the YFS that are offsetting the seafloor, possibly because of an earthquake occurred in historical times Peer reviewed 2023-08-16T07:47:11Z 2023-08-16T07:47:11Z 2022-05-25 comunicación de congreso European Geosciences Union General Assembly: EGU22-2942 (2022) http://hdl.handle.net/10261/333270 10.5194/egusphere-egu22-2942 en Publisher's version https://doi.org/10.5194/egusphere-egu22-2942 Sí open European Geosciences Union
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
description European Geosciences Union (EGU) General Assembly, 23-27 May 2022, Vienna, Austria
format comunicación de congreso
author Perea, Héctor
Martínez-Loriente, S.
Llopart, Jaume
Canari Bordoy, Ariadna
Gómez de la Peña, L.
Bartolomé, Rafael
Gràcia, Eulàlia
spellingShingle Perea, Héctor
Martínez-Loriente, S.
Llopart, Jaume
Canari Bordoy, Ariadna
Gómez de la Peña, L.
Bartolomé, Rafael
Gràcia, Eulàlia
The Plio-Quaternary activity of the Yusuf Fault System (Alboran Sea; Westernmost Mediterranean): From 3D deep structure to seafloor geomorphology
author_facet Perea, Héctor
Martínez-Loriente, S.
Llopart, Jaume
Canari Bordoy, Ariadna
Gómez de la Peña, L.
Bartolomé, Rafael
Gràcia, Eulàlia
author_sort Perea, Héctor
title The Plio-Quaternary activity of the Yusuf Fault System (Alboran Sea; Westernmost Mediterranean): From 3D deep structure to seafloor geomorphology
title_short The Plio-Quaternary activity of the Yusuf Fault System (Alboran Sea; Westernmost Mediterranean): From 3D deep structure to seafloor geomorphology
title_full The Plio-Quaternary activity of the Yusuf Fault System (Alboran Sea; Westernmost Mediterranean): From 3D deep structure to seafloor geomorphology
title_fullStr The Plio-Quaternary activity of the Yusuf Fault System (Alboran Sea; Westernmost Mediterranean): From 3D deep structure to seafloor geomorphology
title_full_unstemmed The Plio-Quaternary activity of the Yusuf Fault System (Alboran Sea; Westernmost Mediterranean): From 3D deep structure to seafloor geomorphology
title_sort plio-quaternary activity of the yusuf fault system (alboran sea; westernmost mediterranean): from 3d deep structure to seafloor geomorphology
publisher European Geosciences Union
publishDate 2022-05-25
url http://hdl.handle.net/10261/333270
work_keys_str_mv AT pereahector theplioquaternaryactivityoftheyusuffaultsystemalboranseawesternmostmediterraneanfrom3ddeepstructuretoseafloorgeomorphology
AT martinezlorientes theplioquaternaryactivityoftheyusuffaultsystemalboranseawesternmostmediterraneanfrom3ddeepstructuretoseafloorgeomorphology
AT llopartjaume theplioquaternaryactivityoftheyusuffaultsystemalboranseawesternmostmediterraneanfrom3ddeepstructuretoseafloorgeomorphology
AT canaribordoyariadna theplioquaternaryactivityoftheyusuffaultsystemalboranseawesternmostmediterraneanfrom3ddeepstructuretoseafloorgeomorphology
AT gomezdelapenal theplioquaternaryactivityoftheyusuffaultsystemalboranseawesternmostmediterraneanfrom3ddeepstructuretoseafloorgeomorphology
AT bartolomerafael theplioquaternaryactivityoftheyusuffaultsystemalboranseawesternmostmediterraneanfrom3ddeepstructuretoseafloorgeomorphology
AT graciaeulalia theplioquaternaryactivityoftheyusuffaultsystemalboranseawesternmostmediterraneanfrom3ddeepstructuretoseafloorgeomorphology
AT pereahector plioquaternaryactivityoftheyusuffaultsystemalboranseawesternmostmediterraneanfrom3ddeepstructuretoseafloorgeomorphology
AT martinezlorientes plioquaternaryactivityoftheyusuffaultsystemalboranseawesternmostmediterraneanfrom3ddeepstructuretoseafloorgeomorphology
AT llopartjaume plioquaternaryactivityoftheyusuffaultsystemalboranseawesternmostmediterraneanfrom3ddeepstructuretoseafloorgeomorphology
AT canaribordoyariadna plioquaternaryactivityoftheyusuffaultsystemalboranseawesternmostmediterraneanfrom3ddeepstructuretoseafloorgeomorphology
AT gomezdelapenal plioquaternaryactivityoftheyusuffaultsystemalboranseawesternmostmediterraneanfrom3ddeepstructuretoseafloorgeomorphology
AT bartolomerafael plioquaternaryactivityoftheyusuffaultsystemalboranseawesternmostmediterraneanfrom3ddeepstructuretoseafloorgeomorphology
AT graciaeulalia plioquaternaryactivityoftheyusuffaultsystemalboranseawesternmostmediterraneanfrom3ddeepstructuretoseafloorgeomorphology
_version_ 1777668022486433792

Similar Items