Assessment and mapping of earthquake-induced landslides in Tigzirt City, Algeria

Lynda Djerbal (), Ibtissam Khoudi, Nassima Alimrina, Bachir Melbouci and Ramdane Bahar
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Lynda Djerbal: University of Sciences and Technology Houari Boumediene
Ibtissam Khoudi: University Mouloud Mammeri of Tizi-Ouzou
Nassima Alimrina: University of Sciences and Technology Houari Boumediene
Bachir Melbouci: University Mouloud Mammeri of Tizi-Ouzou
Ramdane Bahar: University of Sciences and Technology Houari Boumediene

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2017, vol. 87, issue 3, No 33, 1859-1879

Abstract: Abstract The natural hazard assessment is hampered by many difficulties due to the complexity of the phenomenon and the need to manage simultaneously several natural and/or technological hazards. Such is the case of most unstable urban sites in Algeria. The paper presents a risk analysis study of landslides and their reactivation in Tigzirt coastal city, located in the north of Algeria, which is classified in a moderate seismic zone. The spatial techniques based on geographic information systems are used to assess landslide susceptibility and hazard. Two qualitative studies of landslide hazard assessment are conducted using parameters defining the Algerian landslides context. The hazard is evaluated by performing a combination of the landslide susceptibility and the urban density. Earthquake-induced landslide hazard is assessed taking into account the Algerian seismicity. The study led to determination and mapping of the hazard induced by Tigzirt landslides.

Keywords: Tigzirt; Landslide; Risk; Vulnerability; Regional seismicity; Mapping (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1007/s11069-017-2831-5

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