Frequency-dependent body-Q and coda-Q in Karliova Triple Junction and its vicinity, eastern Turkey

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dc.authoridDemirci, Alper/0000-0002-8710-6232
dc.contributor.authorDemirci, Alper
dc.date.accessioned2025-01-27T20:47:40Z
dc.date.available2025-01-27T20:47:40Z
dc.date.issued2019
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractA dataset obtained from six broadband stations of 111 small- to moderate-sized local events that occurred between 2010 and 2018 was analyzed to reveal the frequency-dependent seismic body (body-Q) and coda (coda-Q) wave attenuation characteristics of three tectonic branches of the Karliova Triple Junction: the Varto Fault Zone (VFZ), North Anatolian Fault Zone (NAFZ), and East Anatolian Fault Zone. The magnitude range was between 2.8 and 6.1 with shallow (<10 km) focal depths. The maximum station-event distance was selected as not to exceed 120 km. Frequency-dependent Qc functions were determined using the single back-scattering model with four lapse time lengths (20, 30, 40, 50 s) while the extended coda normalization method was performed to estimate the body wave attenuation functions for seven central frequencies varying from 1.5 Hz to 18 Hz. The minimum and maximum Qp values were 7 at 1.5 Hz for the VFZ and 739 at 18 Hz for the NAFZ, respectively. Qs values were observed between a minimum of 26 for VFZ and maximum of 1259 for NAFZ. Additionally, coda-Q results show a strong lapse time dependency between Q(0) and n; exhibiting a decrease in n by an increase in Q(0), with an ascending lapse time. Comparing the three subregions of the Karliova Triple Junction, VFZ appears to have a significantly higher attenuation for all Q types and Qs/Qp ratios while the NAFZ has relatively low attenuation.
dc.identifier.doi10.3906/yer-1903-2
dc.identifier.endpage919
dc.identifier.issn1300-0985
dc.identifier.issue6
dc.identifier.scopus2-s2.0-85074769019
dc.identifier.scopusqualityQ2
dc.identifier.startpage902
dc.identifier.trdizinid336320
dc.identifier.urihttps://doi.org/10.3906/yer-1903-2
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/336320
dc.identifier.urihttps://hdl.handle.net/20.500.12428/25003
dc.identifier.volume28
dc.identifier.wosWOS:000495980300007
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.publisherTubitak Scientific & Technological Research Council Turkey
dc.relation.ispartofTurkish Journal of Earth Sciences
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectAttenuation
dc.subjectcoda normalization method
dc.subjectsingle backscattering model
dc.subjectKarliova Triple Junction
dc.subjectTurkey
dc.titleFrequency-dependent body-Q and coda-Q in Karliova Triple Junction and its vicinity, eastern Turkey
dc.typeArticle

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