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Regional hazard assessment of earthquake-triggered slope instabilities considering site effects and seismic scenarios in Lorca basin (Spain)

dc.contributor.authorRodríguez Peces, Martín Jesús
dc.contributor.authorGarcía Mayordomo, Julián
dc.contributor.authorAzañón, José M.
dc.contributor.authorJabaloy Sánchez, Antonio
dc.date.accessioned2023-06-20T01:19:20Z
dc.date.available2023-06-20T01:19:20Z
dc.date.issued2011-05-01
dc.description.abstractWe present a regional hazard assessment of earthquake- triggered slope instabilities based on specific seismic scenarios and taking into account soil and topographic amplification effects. We followed Newmark's sliding rigid-block methodology implemented in a geographic information system (GIS) with the aim of producing regional maps in terms of critical acceleration and Newmark displacements for selected seismic scenarios. Strong ground-motion amplification site effects have been considered, particularly the topographic factor, by means of designing a GIS tool based on terrain geometry features and Eurocode-8 provisions. Three different concepts of seismic scenarios are considered in this work: probabilistic, pseudo-probabilistic, and deterministic. The study area is the Lorca Basin, located in the Eastern Betic Cordillera, one of the most seismically active regions of southeast Spain. The obtained Newmark displacement maps are compared to the distribution of known slope instabilities in the area. Future seismically induced slope instabilities in the Lorca Basin appear to be limited to isolated rock slides and rockfalls. Only the deterministic scenario (M w >6.7) seems capable of producing widespread slope instabilities, mainly rock slides, rockfalls, and landslides.
dc.description.departmentDepto. de Geodinámica, Estratigrafía y Paleontología
dc.description.facultyFac. de Ciencias Geológicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Ciencia e Innovación (MICINN)
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/75817
dc.identifier.doi10.2113/gseegeosci.17.2.183
dc.identifier.issn1078-7275
dc.identifier.officialurlhttps://doi.org/10.2113/gseegeosci.17.2.183
dc.identifier.relatedurlhttps://pubs.geoscienceworld.org/eeg
dc.identifier.urihttps://hdl.handle.net/20.500.14352/43502
dc.issue.number2
dc.journal.titleEnvironmental & engineering geoscience (Print)
dc.language.isoeng
dc.page.final196
dc.page.initial183
dc.publisherGeological Society of America
dc.relation.projectID(CGL2008-03249/BTE); TOPOIBERIA CONSOLIDER- INGENIO2010(CSD2006-00041); FASEGEO(CGL2009-09726)
dc.rights.accessRightsrestricted access
dc.subject.cdu551.435.62(460.33)
dc.subject.cdu550.344.094.3(460.33)
dc.subject.keywordBetic Cordillera
dc.subject.keywordGIS
dc.subject.keywordLandslides
dc.subject.keywordNewmark
dc.subject.keywordRockfalls
dc.subject.keywordSite Effects.
dc.subject.ucmSismología (Geología)
dc.subject.unesco2507.05 Sismología y Prospección Sísmica
dc.titleRegional hazard assessment of earthquake-triggered slope instabilities considering site effects and seismic scenarios in Lorca basin (Spain)
dc.typejournal article
dc.volume.number17
dspace.entity.typePublication
relation.isAuthorOfPublicationc7570f72-f355-48f4-8aab-c734b04b9044
relation.isAuthorOfPublication3f878037-f89a-4642-bfc6-019198a4bc46
relation.isAuthorOfPublication.latestForDiscovery3f878037-f89a-4642-bfc6-019198a4bc46

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