Geodetic Deformation versus Seismic Crustal Moment-Rates: Insights from the Ibero-Maghrebian Region
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...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/12/6/952 |
| _version_ | 1798017627668348928 |
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| author | Federica Sparacino Mimmo Palano José Antonio Peláez José Fernández |
| author_facet | Federica Sparacino Mimmo Palano José Antonio Peláez José Fernández |
| author_sort | Federica Sparacino |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-11T16:10:24Z |
| format | Article |
| id | doaj.art-1685474ecca143faa35bd116866a3ca6 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-04-11T16:10:24Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-1685474ecca143faa35bd116866a3ca62022-12-22T04:14:43ZengMDPI AGRemote Sensing2072-42922020-03-0112695210.3390/rs12060952rs12060952Geodetic Deformation versus Seismic Crustal Moment-Rates: Insights from the Ibero-Maghrebian RegionFederica Sparacino0Mimmo Palano1José Antonio Peláez2José Fernández3Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo - Sezione di Catania, 95125 Catania, ItalyIstituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo - Sezione di Catania, 95125 Catania, ItalyDepartment of Physics, University of Jaén, 23071 Jaén, SpainInstitute of Geosciences (CSIC, UCM), C/ Doctor Severo Ochoa, 7, Ciudad Universitaria, 28040 Madrid, SpainSeismic 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.https://www.mdpi.com/2072-4292/12/6/952earthquake catalogsgnssseismic/aseismic behaviorearthquake hazardseurasia-nubia plate |
| spellingShingle | Federica Sparacino Mimmo Palano José Antonio Peláez José Fernández Geodetic Deformation versus Seismic Crustal Moment-Rates: Insights from the Ibero-Maghrebian Region Remote Sensing earthquake catalogs gnss seismic/aseismic behavior earthquake hazards eurasia-nubia plate |
| title | Geodetic Deformation versus Seismic Crustal Moment-Rates: Insights from the Ibero-Maghrebian Region |
| title_full | Geodetic Deformation versus Seismic Crustal Moment-Rates: Insights from the Ibero-Maghrebian Region |
| title_fullStr | Geodetic Deformation versus Seismic Crustal Moment-Rates: Insights from the Ibero-Maghrebian Region |
| title_full_unstemmed | Geodetic Deformation versus Seismic Crustal Moment-Rates: Insights from the Ibero-Maghrebian Region |
| title_short | Geodetic Deformation versus Seismic Crustal Moment-Rates: Insights from the Ibero-Maghrebian Region |
| title_sort | geodetic deformation versus seismic crustal moment rates insights from the ibero maghrebian region |
| topic | earthquake catalogs gnss seismic/aseismic behavior earthquake hazards eurasia-nubia plate |
| url | https://www.mdpi.com/2072-4292/12/6/952 |
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