Frequency Dependent Attenuation Characteristics of Body Waves in Büyük Menderes Graben

In this study, 66 earthquake data, along the faults of northern boundary of the Büyük Menderes Graben and their continuations in the Aegean Sea, were used to reveal the body wave attenuation characterization of the region. The attenuation functions of the P and S waves are calculated by the coda nor...

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Main Authors: Alper Demirci, Tolga Bekler
Format: Article
Language:English
Published: Artvin Coruh University 2019-01-01
Series:Doğal Afetler ve Çevre Dergisi
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Online Access:http://dacd.artvin.edu.tr/tr/download/article-file/552489
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author Alper Demirci
Tolga Bekler
author_facet Alper Demirci
Tolga Bekler
author_sort Alper Demirci
collection DOAJ
description In this study, 66 earthquake data, along the faults of northern boundary of the Büyük Menderes Graben and their continuations in the Aegean Sea, were used to reveal the body wave attenuation characterization of the region. The attenuation functions of the P and S waves are calculated by the coda normalization technique. The results obtained in this study reveal attenuation relations, which are one of the basic parameters required to modelling large earthquakes in the region and to obtain more reliable results from necessary seismic risk studies. The power-law functions were obtained for the S and P seismic phases as Qs=79.2±14.6f 0.9±0.07 and Qp=32.9±13.7f1.05±0.16 respectively. Also the QS / QP ratio is calculated as ~ 1.75. for the frequencies greater than 1 Hz. According to the results, the low Qp and Qs values ​​and their ratios (QS / QP) indicate the abundance of scattering effect, which can be interpreted as a result of intense lateral heterogeneity in the upper crust.
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issn 2528-9640
2528-9640
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publishDate 2019-01-01
publisher Artvin Coruh University
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series Doğal Afetler ve Çevre Dergisi
spelling doaj-art-b30150b8a37c45ebac8270a4107a42512025-02-02T16:15:48ZengArtvin Coruh UniversityDoğal Afetler ve Çevre Dergisi2528-96402528-96402019-01-015111612310.21324/dacd.449551Frequency Dependent Attenuation Characteristics of Body Waves in Büyük Menderes GrabenAlper Demirci0Tolga Bekler1Çanakkale Onsekiz Mart Üniversitesi, Mühendislik Fakültesi, Jeofizik Mühendisliği Bölümü, 17100, ÇanakkaleÇanakkale Onsekiz Mart Üniversitesi, Mühendislik Fakültesi, Jeofizik Mühendisliği Bölümü, 17100, ÇanakkaleIn this study, 66 earthquake data, along the faults of northern boundary of the Büyük Menderes Graben and their continuations in the Aegean Sea, were used to reveal the body wave attenuation characterization of the region. The attenuation functions of the P and S waves are calculated by the coda normalization technique. The results obtained in this study reveal attenuation relations, which are one of the basic parameters required to modelling large earthquakes in the region and to obtain more reliable results from necessary seismic risk studies. The power-law functions were obtained for the S and P seismic phases as Qs=79.2±14.6f 0.9±0.07 and Qp=32.9±13.7f1.05±0.16 respectively. Also the QS / QP ratio is calculated as ~ 1.75. for the frequencies greater than 1 Hz. According to the results, the low Qp and Qs values ​​and their ratios (QS / QP) indicate the abundance of scattering effect, which can be interpreted as a result of intense lateral heterogeneity in the upper crust.http://dacd.artvin.edu.tr/tr/download/article-file/552489attenuationbüyük menderes grabenearthquakep waves wave
spellingShingle Alper Demirci
Tolga Bekler
Frequency Dependent Attenuation Characteristics of Body Waves in Büyük Menderes Graben
Doğal Afetler ve Çevre Dergisi
attenuation
büyük menderes graben
earthquake
p wave
s wave
title Frequency Dependent Attenuation Characteristics of Body Waves in Büyük Menderes Graben
title_full Frequency Dependent Attenuation Characteristics of Body Waves in Büyük Menderes Graben
title_fullStr Frequency Dependent Attenuation Characteristics of Body Waves in Büyük Menderes Graben
title_full_unstemmed Frequency Dependent Attenuation Characteristics of Body Waves in Büyük Menderes Graben
title_short Frequency Dependent Attenuation Characteristics of Body Waves in Büyük Menderes Graben
title_sort frequency dependent attenuation characteristics of body waves in buyuk menderes graben
topic attenuation
büyük menderes graben
earthquake
p wave
s wave
url http://dacd.artvin.edu.tr/tr/download/article-file/552489
work_keys_str_mv AT alperdemirci frequencydependentattenuationcharacteristicsofbodywavesinbuyukmenderesgraben
AT tolgabekler frequencydependentattenuationcharacteristicsofbodywavesinbuyukmenderesgraben