Statistical and seismotectonic analyses of the Marmara region under existing stress regime in the west of the NAFZ

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dc.authoridozturk, serkan/0000-0003-1322-5164
dc.authoridBuyuksarac, Aydin/0000-0002-4279-4158
dc.authoridAlkan, Hamdi/0000-0003-3912-7503
dc.contributor.authorAlkan, Hamdi
dc.contributor.authorOzturk, Serkan
dc.contributor.authorBektas, Ozcan
dc.contributor.authorBuyuksarac, Aydin
dc.date.accessioned2025-01-27T20:47:39Z
dc.date.available2025-01-27T20:47:39Z
dc.date.issued2024
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe Marmara Region is an active tectonic region in northwestern T & uuml;rkiye, which comprises some important strike-slip active fault mechanisms and important tectonic units, located near the western part of the North Anatolian Fault Zone. In the historical and instrumental period, the Marmara Region experienced large/devastating earthquakes. Considering this continuous activity, in this study, we investigate the tectonic structure and performed future seismic hazard estimation of the region based on some seismotectonic parameters. For this evaluation, we plot the Coulomb stress change maps of 1912 M & uuml;refte-& Scedil;ark & ouml;y, 1953 Yenice-G & ouml;nen and 1999 & Idot;zmit mainshocks with the earthquakes (MW >= 4.5) that occurred in the study region after 2003. For the estimation of b-value, occurrence probabilities and return periods of earthquakes, we used a homogenous local seismicity catalogue consisting of 119.029 events for the period between 1912 and 2023. In the findings of this study, the lower b-values and increasing Coulomb stress changes which are trigger stress failure compatible are observed in the west and northwest of the Marmara Sea. In contrast, the higher/moderate b-values and decreasing Coulomb stress values are observed in the east and southeast of the Marmara Sea. The results of probability assessments show that an earthquake with Mw = 6.5 may occur with a probability of 98% in the west of the Marmara Sea after 2025. As a remarkable fact, a comprehensive assessment of these types of variables will supply important findings for earthquake hazard and potential in the study region.
dc.identifier.doi10.1007/s11600-024-01449-6
dc.identifier.issn1895-6572
dc.identifier.issn1895-7455
dc.identifier.scopus2-s2.0-85205293272
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1007/s11600-024-01449-6
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24996
dc.identifier.wosWOS:001324535500007
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer Int Publ Ag
dc.relation.ispartofActa Geophysica
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectMarmara region
dc.subjectCoulomb stress
dc.subjectb-value
dc.subjectProbability
dc.subjectReturn period
dc.titleStatistical and seismotectonic analyses of the Marmara region under existing stress regime in the west of the NAFZ
dc.typeArticle

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