Azimuthal Path Variations of Regional Body Wave Attenuation via Coda-Source Normalized Method: An Example from Eastern Marmara (NW Turkey)

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dc.authoridBEKLER, TOLGA/0000-0002-9475-8626
dc.authoridDemirci, Alper/0000-0002-8710-6232
dc.contributor.authorDemirci, Alper
dc.contributor.authorBekler, Tolga
dc.date.accessioned2025-01-27T20:12:24Z
dc.date.available2025-01-27T20:12:24Z
dc.date.issued2023
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThis study examines the body wave attenuation characteristics for the eastern section of the Marmara Region (NW Turkey). Qp and Qs values were obtained using the vertical and two horizontal components of the three-component broad-band data, respectively that recorded in a circular areal extent with 120 km radius centred at the ARMT station on the Armutlu Peninsula. The database was prepared according to back-azimuthal distributions, and data-packs representing 36 different back-azimuthal slices were subjected to the Extended-Coda-Normalization-Method to examine the azimuthal path-dependence of the attenuation characteristics of direct body waves in the region. While the region corresponding to the basins in the Marmara Sea with relatively low seismicity is represented by high Q values, low Q values were observed in areas with intense faulting and seismicity in the NE of the study area. Additionally, direction-independent attenuation functions for the region were calculated as Qp = 18 +/- 1f(0.92 +/- 0.2) and Qs = 38 +/- 1f(0.87 +/- 0.01) for P and S phases, respectively.
dc.identifier.doi10.1080/13632469.2022.2030435
dc.identifier.endpage463
dc.identifier.issn1363-2469
dc.identifier.issn1559-808X
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85123741812
dc.identifier.scopusqualityQ1
dc.identifier.startpage451
dc.identifier.urihttps://doi.org/10.1080/13632469.2022.2030435
dc.identifier.urihttps://hdl.handle.net/20.500.12428/20934
dc.identifier.volume27
dc.identifier.wosWOS:000746396900001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofJournal of Earthquake Engineering
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectPath-dependent attenuation
dc.subjectdirect body waves
dc.subjectcoda normalization
dc.subjectearthquake hazards
dc.subjectMarmara Sea
dc.titleAzimuthal Path Variations of Regional Body Wave Attenuation via Coda-Source Normalized Method: An Example from Eastern Marmara (NW Turkey)
dc.typeArticle

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