Predisposing and triggering factors of large-scale landslides in Debre Sina area, central Ethiopian highlands

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dc.contributor.authorMebrahtu, T. K.
dc.contributor.authorHussien, B.
dc.contributor.authorBanning, Andre
dc.contributor.authorWohnlich, S.
dc.contributor.funderDeutscher Akademischer Austauschdiensten
dc.contributor.funderResearch School, Ruhr University Bochumen
dc.contributor.funderDeutsche Forschungsgemeinschaften
dc.date.accessioned2021-11-24T13:20:22Z
dc.date.available2021-11-24T13:20:22Z
dc.date.issued2021-08-16
dc.date.updated2021-11-23T14:56:42Z
dc.description.abstractA large number of landslide events have repeatedly struck the border zone of the northwestern plateaus of Ethiopia. Debre Sina area is one of the most tectonically active areas located along the western margin of the Afar depression, which is frequently affected by landslides. Despite that, urban and rural development is currently active in almost the entire area. It is crucial, therefore, to understand the main causes and failure mechanisms of landslides in the Debre Sina area and its surroundings. The present study investigated landslides using field mapping of geological and geomorphological features, remote sensing, geo-morphometric analysis, structural analysis, rainfall data, landslide inventory, and earthquake data. The results of the study indicate that large-scale and deep-seated landslide problems appear to be caused by complex geological settings and rugged topography. In particular, the location and morphology of the Yizaba Wein and Shotel Amba landslides are strongly controlled by geological structures. Their flanks are bounded by high angle faults, and their main basal failure surfaces have developed within a W–E striking eastward-dipping normal fault zone. The complex litho-structural and morphologic settings play a vital role in controlling the geometry of the slip surfaces and the stability of the landslides.en
dc.description.sponsorshipProjekt DEAL (Open Access funding); Deutscher Akademischer Austauschdienst (German Academic Exchange Service (DAAD), PhD scholarship grant); Research School, Ruhr University Bochum (Ruhr University Research School PLUS, funded by Germany’s Excellence Initiative (DFG GSC 98/3))en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMebrahtu, T.K., Hussien, B., Banning, A. and Wohnlich, S. (2021) ‘Predisposing and triggering factors of large-scale landslides in Debre Sina area, central Ethiopian highlands’, Bulletin of Engineering Geology and the Environment, 80, pp. 365–383. doi: 10.1007/s10064-020-01961-1en
dc.identifier.doi10.1007/s10064-020-01961-1en
dc.identifier.endpage383en
dc.identifier.issn1435-9529
dc.identifier.issued1en
dc.identifier.journaltitleBulletin Of Engineering Geology And The Environmenten
dc.identifier.startpage365en
dc.identifier.urihttps://hdl.handle.net/10468/12258
dc.identifier.volume80en
dc.language.isoenen
dc.publisherSpringeren
dc.relation.urihttps://link.springer.com/article/10.1007%2Fs10064-020-01961-1
dc.rights© The Authors 2021. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License.en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectEthiopiaen
dc.subjectFailure mechanismsen
dc.subjectLandslidesen
dc.subjectNatural hazardsen
dc.subjectRift escarpmenten
dc.titlePredisposing and triggering factors of large-scale landslides in Debre Sina area, central Ethiopian highlandsen
dc.typeArticle (peer-reviewed)en
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