Three dimensional shear wave velocity (Vs) structure and dynamic soil properties of Adiyaman-Golbasi basin using HVSR and SPAC methods

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dc.authorid0000-0002-5104-9504
dc.authorid0000-0002-3930-5464
dc.authorid0000-0002-9511-7951
dc.contributor.authorPamuk, Eren
dc.contributor.authorFirat, Seyhan
dc.contributor.authorBuyuksarac, Aydin
dc.contributor.authorCretin, Kemal Onder
dc.contributor.authorBektas, Ozcan
dc.contributor.authorIsik, Nihat Sinan
dc.contributor.authorSaritepe, Halil Erdim
dc.date.accessioned2026-02-03T12:02:32Z
dc.date.available2026-02-03T12:02:32Z
dc.date.issued2026
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractOn February 6, 2023, two devastating earthquakes (M-w 7.8 and M-w 7.6) struck southeastern T & uuml;rkiye, two of the most destructive seismic events in the country's history. This study investigates the structural damage and seismic vulnerability in the G & ouml;lbasi Basin, located in Adiyaman Province-one of the regions most severely affected by these events. Geophysical techniques, the HVSR (Nakamura) and spatial autocorrelation (SPAC) methods, were employed to develop shear wave velocity (Vs) profiles and evaluate the dynamic soil properties of the basin. Shear wave velocities within the G & ouml;lbasi Basin, down to a depth of 300 m, range from 211 to 923 m/s, with the lowest values observed near the lake, indicating weak and loose soil conditions. Natural site periods vary between 0.1 s and 2.86 s, with the longest periods (T > 2.5 s) also concentrated in the vicinity of the lake. In areas where the engineering bedrock (Vs > 760 m/s) lies deeper than 250 m, natural periods frequently exceed 1.5 s. These findings suggest that zones with thick alluvial deposits and low Vs values are particularly susceptible to seismic hazards. Structural damage was most severe in areas where Vs is below 350 m/s, site periods exceed 1 s, and the engineering bedrock lies deeper than 50 m. Notably, low-rise industrial buildings and low-rise structures with basement floors remained intact despite poor soil conditions. In contrast, in areas with more competent ground conditions, structural collapses were more likely caused by deficiencies in engineering design or construction quality.
dc.description.sponsorshipNASA EOSDIS Land Processes DAAC
dc.description.sponsorshipAFAD (Disaster and Emergency Management Presidency)
dc.description.sponsorshipThe authors would like to send their sincere thanks to the Minister of Environment, Urbanization, and Climate Change for valuable support, and to Geodestek Ltd. for their experimental works carried out on site. The authors gratefully acknowledge the use of SRTM-1 digital elevation data, provided by NASA EOSDIS Land Processes DAAC, United States. SPAC data processing and HVSR analyses were performed using Geopsy software [20,51] . The authors acknowledge and appreciate the contri-butions of the researchers involved in the development of Geopsy. Some maps were produced using the Oasis montaj software. The authors would like to thank the editor and the anonymous reviewers for their constructive comments and suggestions during the review process. Their valuable feedback has significantly contributed to the improvement of this study. Damage distribution information was obtained from AFAD (Disaster and Emergency Management Presidency) . The authors would like to express their sincere gratitude to Professor John Kinuthia from the University of South Wales for reviewing and editing the English of the manuscript.
dc.identifier.doi10.1016/j.soildyn.2025.109744
dc.identifier.issn0267-7261
dc.identifier.issn1879-341X
dc.identifier.scopus2-s2.0-105013835930
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.soildyn.2025.109744
dc.identifier.urihttps://hdl.handle.net/20.500.12428/34793
dc.identifier.volume200
dc.identifier.wosWOS:001561522300001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofSoil Dynamics and Earthquake Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20260130
dc.subjectGolbasi basin
dc.subjectSPAC
dc.subjectMicrotremor
dc.subjectKahramanmaras earthquakes
dc.titleThree dimensional shear wave velocity (Vs) structure and dynamic soil properties of Adiyaman-Golbasi basin using HVSR and SPAC methods
dc.typeArticle

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