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Regional Hazard Assessment of Earthquake-Triggered Slope Instabilities Considering Site Effects and Seismic Scenarios in Lorca Basin (Spain)

2011; Geological Society of America; Volume: 17; Issue: 2 Linguagem: Inglês

10.2113/gseegeosci.17.2.183

1558-9161

Martín Jesús Rodríguez-Peces, Julián García Mayordomo, José Miguel Azañón, A. Jabaloy,

Landslides and related hazards

Research Article| May 01, 2011 Regional Hazard Assessment of Earthquake-Triggered Slope Instabilities Considering Site Effects and Seismic Scenarios in Lorca Basin (Spain) MARTÍN J. RODRÍGUEZ-PECES; MARTÍN J. RODRÍGUEZ-PECES 1Departamento de Geodinámica, Universidad de Granada, Campus de Fuentenueva s/n, 18071 Granada, Spain marpeces@ugr.es Search for other works by this author on: GSW Google Scholar JULIÁN GARCÍA-MAYORDOMO; JULIÁN GARCÍA-MAYORDOMO 2Instituto Geológico y Minero de España (IGME), C/La Calera, 1. 28760, Tres Cantos (Madrid), Spain Search for other works by this author on: GSW Google Scholar JOSÉ M. AZAÑÓN; JOSÉ M. AZAÑÓN 3Instituto Andaluz de Ciencias de la Tierra (UGR-CSIC), Campus de Fuentenueva s/n, 18002 Granada, Spain jazanon@ugr.es Search for other works by this author on: GSW Google Scholar ANTONIO JABALOY ANTONIO JABALOY 4Departamento de Geodinámica, Universidad de Granada, Campus de Fuentenueva s/n, 18071 Granada, Spain Search for other works by this author on: GSW Google Scholar Author and Article Information MARTÍN J. RODRÍGUEZ-PECES 1Departamento de Geodinámica, Universidad de Granada, Campus de Fuentenueva s/n, 18071 Granada, Spain marpeces@ugr.es JULIÁN GARCÍA-MAYORDOMO 2Instituto Geológico y Minero de España (IGME), C/La Calera, 1. 28760, Tres Cantos (Madrid), Spain JOSÉ M. AZAÑÓN 3Instituto Andaluz de Ciencias de la Tierra (UGR-CSIC), Campus de Fuentenueva s/n, 18002 Granada, Spain jazanon@ugr.es ANTONIO JABALOY 4Departamento de Geodinámica, Universidad de Granada, Campus de Fuentenueva s/n, 18071 Granada, Spain Publisher: Association of Environmental & Engineering Geologists First Online: 02 Mar 2017 Online ISSN: 1558-9161 Print ISSN: 1078-7275 Copyright © 2011 EEGS Environmental & Engineering Geoscience (2011) 17 (2): 183–196. https://doi.org/10.2113/gseegeosci.17.2.183 Article history First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation MARTÍN J. RODRÍGUEZ-PECES, JULIÁN GARCÍA-MAYORDOMO, JOSÉ M. AZAÑÓN, ANTONIO JABALOY; Regional Hazard Assessment of Earthquake-Triggered Slope Instabilities Considering Site Effects and Seismic Scenarios in Lorca Basin (Spain). Environmental & Engineering Geoscience 2011;; 17 (2): 183–196. doi: https://doi.org/10.2113/gseegeosci.17.2.183 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyEnvironmental & Engineering Geoscience Search Advanced Search Abstract We 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 (Mw >6.7) seems capable of producing widespread slope instabilities, mainly rock slides, rockfalls, and landslides. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.