Vs30 Mapping and Soil Classification in Tiznit Region Based On H/V Spectral Ration Method

The average shear wave velocity measured to a depth of 30 meters (VS30) is an important parameter for determining soil characteristics. As part of the seismic risk assessment in the Tiznit region, ambient noise recordings were made during the geophysical investigation campaign using the (H/V) method...

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Main Authors: Cherki Fadoua, Tadili Mehdi, Tadili Benaissa, Mhammdi Nadia
Format: Article
Language:English
Published: EDP Sciences 2025-01-01
Series:E3S Web of Conferences
Subjects:
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/07/e3sconf_errachidia2024_04004.pdf
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author Cherki Fadoua
Tadili Mehdi
Tadili Benaissa
Mhammdi Nadia
author_facet Cherki Fadoua
Tadili Mehdi
Tadili Benaissa
Mhammdi Nadia
author_sort Cherki Fadoua
collection DOAJ
description The average shear wave velocity measured to a depth of 30 meters (VS30) is an important parameter for determining soil characteristics. As part of the seismic risk assessment in the Tiznit region, ambient noise recordings were made during the geophysical investigation campaign using the (H/V) method. The spectral analysis of these recordings enabled the determination of dominant frequencies and the estimation of VS30 values for each site. The aim of this study is to map the spatial variation of VS30 and classify soil types in the Tiznit region. The results show that the soil in the study area is divided into two classes according to the National Earthquake Hazards Reduction Program (NEHRP) classification: Class C refers to soft rock and very dense soils with VS30 greater than 360 m/s, while Class D represents stiff soils with VS30 values between 180 m/s and 360 m/s.
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institution Kabale University
issn 2267-1242
language English
publishDate 2025-01-01
publisher EDP Sciences
record_format Article
series E3S Web of Conferences
spelling doaj-art-42be7282bbc8440487de3ba60a4cbbd82025-02-05T10:49:23ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016070400410.1051/e3sconf/202560704004e3sconf_errachidia2024_04004Vs30 Mapping and Soil Classification in Tiznit Region Based On H/V Spectral Ration MethodCherki Fadoua0Tadili Mehdi1Tadili Benaissa2Mhammdi Nadia3Mohammed V University in Rabat, Institut Scientifique, GEOPAC Research Center, Geophysics and Natural Hazards LaboratoryEngineering Office IserviceProEngineering Office IserviceProMohammed V University in Rabat, Institut Scientifique, GEOPAC Research Center, Geophysics and Natural Hazards LaboratoryThe average shear wave velocity measured to a depth of 30 meters (VS30) is an important parameter for determining soil characteristics. As part of the seismic risk assessment in the Tiznit region, ambient noise recordings were made during the geophysical investigation campaign using the (H/V) method. The spectral analysis of these recordings enabled the determination of dominant frequencies and the estimation of VS30 values for each site. The aim of this study is to map the spatial variation of VS30 and classify soil types in the Tiznit region. The results show that the soil in the study area is divided into two classes according to the National Earthquake Hazards Reduction Program (NEHRP) classification: Class C refers to soft rock and very dense soils with VS30 greater than 360 m/s, while Class D represents stiff soils with VS30 values between 180 m/s and 360 m/s.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/07/e3sconf_errachidia2024_04004.pdfseismic risk assessmenthvsrvs30 mappingtiznitsoil classification
spellingShingle Cherki Fadoua
Tadili Mehdi
Tadili Benaissa
Mhammdi Nadia
Vs30 Mapping and Soil Classification in Tiznit Region Based On H/V Spectral Ration Method
E3S Web of Conferences
seismic risk assessment
hvsr
vs30 mapping
tiznit
soil classification
title Vs30 Mapping and Soil Classification in Tiznit Region Based On H/V Spectral Ration Method
title_full Vs30 Mapping and Soil Classification in Tiznit Region Based On H/V Spectral Ration Method
title_fullStr Vs30 Mapping and Soil Classification in Tiznit Region Based On H/V Spectral Ration Method
title_full_unstemmed Vs30 Mapping and Soil Classification in Tiznit Region Based On H/V Spectral Ration Method
title_short Vs30 Mapping and Soil Classification in Tiznit Region Based On H/V Spectral Ration Method
title_sort vs30 mapping and soil classification in tiznit region based on h v spectral ration method
topic seismic risk assessment
hvsr
vs30 mapping
tiznit
soil classification
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/07/e3sconf_errachidia2024_04004.pdf
work_keys_str_mv AT cherkifadoua vs30mappingandsoilclassificationintiznitregionbasedonhvspectralrationmethod
AT tadilimehdi vs30mappingandsoilclassificationintiznitregionbasedonhvspectralrationmethod
AT tadilibenaissa vs30mappingandsoilclassificationintiznitregionbasedonhvspectralrationmethod
AT mhammdinadia vs30mappingandsoilclassificationintiznitregionbasedonhvspectralrationmethod