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Article

Geodetic Deformation versus Seismic Crustal Moment-Rates: Insights from the Ibero-Maghrebian Region

1
Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo - Sezione di Catania, 95125 Catania, Italy
2
Department of Physics, University of Jaén, 23071 Jaén, Spain
3
Institute of Geosciences (CSIC, UCM), C/ Doctor Severo Ochoa, 7, Ciudad Universitaria, 28040 Madrid, Spain
*
Author to whom correspondence should be addressed.
Remote Sens. 2020, 12(6), 952; https://doi.org/10.3390/rs12060952
Received: 27 January 2020 / Revised: 11 March 2020 / Accepted: 12 March 2020 / Published: 16 March 2020
(This article belongs to the Special Issue Ground Deformation Patterns Detection by InSAR and GNSS Techniques)
Seismic and geodetic moment-rate comparisons can reveal regions with unexpected potential seismic hazards. We performed such a comparison for the Southeastern Iberia—Maghreb region. Located at the western Mediterranean border along the Eurasia–Nubia plate convergence, the region has been subject to a number of large earthquakes (M ≥ 6.5) in the last millennium. To this end, on the basis of available geological, tectonic, and seismological data, we divided the study area into twenty-five seismogenic source zones. Many of these seismogenic source zones, comprising the Western Betics, the Western Rif mountains, and the High, Middle, and Saharan Atlas, are characterized by seismic/geodetic ratio values lower than 23%, evidencing their prevailing aseismic behavior. Intermediate seismic/geodetic ratio values (between 35% and 60%) have been observed for some zones belonging to the Eastern Betics, the central Rif, and the Middle Atlas, indicating how crustal seismicity accounts only for a moderate fraction of the total deformation-rate budget. High seismic/geodetic ratio values (> 95%) have been observed along the Tell Atlas, highlighting a fully seismic deformation. View Full-Text
Keywords: earthquake catalogs; GNSS; seismic/aseismic behavior; earthquake hazards; Eurasia-Nubia plate earthquake catalogs; GNSS; seismic/aseismic behavior; earthquake hazards; Eurasia-Nubia plate
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MDPI and ACS Style

Sparacino, F.; Palano, M.; Peláez, J.A.; Fernández, J. Geodetic Deformation versus Seismic Crustal Moment-Rates: Insights from the Ibero-Maghrebian Region. Remote Sens. 2020, 12, 952. https://doi.org/10.3390/rs12060952

AMA Style

Sparacino F, Palano M, Peláez JA, Fernández J. Geodetic Deformation versus Seismic Crustal Moment-Rates: Insights from the Ibero-Maghrebian Region. Remote Sensing. 2020; 12(6):952. https://doi.org/10.3390/rs12060952

Chicago/Turabian Style

Sparacino, Federica, Mimmo Palano, José A. Peláez, and José Fernández. 2020. "Geodetic Deformation versus Seismic Crustal Moment-Rates: Insights from the Ibero-Maghrebian Region" Remote Sensing 12, no. 6: 952. https://doi.org/10.3390/rs12060952

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