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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Seismicity, seismic input and site effects in the Sahel-Algiers region (North Algeria)
Soil Dynamics and Earthquake Engineering, Volume 27, No. 5, Year 2007
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Description
Algiers city is located in a seismogenic zone. To reduce the impact of seismic risk in this Capital city, a realistic modelling of the seismic ground motion (SGM) is conducted by using the hybrid method that combines the finite differences method and the modal summation. For this purpose, a complete database of geological, geophysical and earthquake data is constructed. A critical re-appraisal of the seismicity of the zone [2.25°E-3.50°E, 36.50°N-37.00°N] is performed and an earthquake list, for the period 1359-2002, is compiled. The analysis of existing and newly retrieved macroseismic information allowed the definition of earthquake parameters of macroseismic events for which a degree of reliability is assigned. Geological cross sections have been built up to model the SGM in the city, caused by the 1989 Mont-Chenoua and the 1924 Douéra earthquakes. Synthetic seismograms and response spectral ratio is produced for Algiers, and they show that the soft sediments in Algiers centre are responsible of the noticed amplification of the SGM. © 2006 Elsevier Ltd. All rights reserved.
Authors & Co-Authors
Harbi, A.
Algeria, Algiers
Centre de Recherche en Astronomie Astrophysique et Géophysique
Italy, Trieste
Abdus Salam International Centre for Theoretical Physics
Maouche, Said
Algeria, Algiers
Centre de Recherche en Astronomie Astrophysique et Géophysique
Vaccari, Franco
Italy, Trieste
Università Degli Studi Di Trieste
Aoudia, Abdelkrim
Italy, Trieste
Abdus Salam International Centre for Theoretical Physics
Ousadou, F.
Algeria, Algiers
Centre de Recherche en Astronomie Astrophysique et Géophysique
Panza, Giuliano F.
Italy, Trieste
Abdus Salam International Centre for Theoretical Physics
Italy, Trieste
Università Degli Studi Di Trieste
Benouar, Djillali
Algeria, Algiers
Université Des Sciences et de la Technologie Houari Boumediene
Statistics
Citations: 47
Authors: 7
Affiliations: 4
Identifiers
Doi:
10.1016/j.soildyn.2006.10.002
ISSN:
02677261
Study Locations
Algeria