Imaging of shear wave attenuation along the central part of the North Anatolian Fault Zone, Turkey

Peter Gaebler*, Tuna Eken, Hüseyin Önder Bektaş, Tom Eulenfeld, Ulrich Wegler, Tuncay Taymaz

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7 Atıf (Scopus)


This study investigates the 2D-lateral distribution of frequency-dependent crustal seismic attenuation parameters beneath the central part of the North Anatolian Fault Zone in Turkey. Parameter estimations are based on an optimal fit between observed and synthetically computed seismogram envelopes in four different frequency bands (1.5 to 12 Hz). The forward modeling of the synthetic data relies on acoustic radiative transfer theory under the assumption of multiple isotropic scattering. Lateral variations of intrinsic and scattering attenuation clearly separate the main branch of the central part of the fault zone. Comparisons between intrinsic and scattering attenuation imply that seismic energy loss in the region of the central part of the North Anatolian Fault Zone is clearly dominated by the process of intrinsic attenuation. As a by-product of the inversion, moment magnitudes of the investigated events are calculated. Comparison of coda-derived magnitudes with magnitudes obtained from the earthquake catalog indicate that the analytical inversion approach can successfully be applied, even in this tectonically complex regime.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)913-927
Sayfa sayısı15
DergiJournal of Seismology
Basın numarası4
Yayın durumuYayınlandı - 15 Tem 2019

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Publisher Copyright:
© 2019, The Author(s).


We highly appreciate the critical and helpful comments by the reviewers and thank the editor Mariano Garcia-Fernandez for handling the revision process. The python code used for carrying out the inverse modeling is available under the permissive MIT license and is distributed at . The facilities of IRIS Data Services, and specifically the IRIS Data Management Center, were used for access to seismic waveforms, related metadata, and/or derived products used in this study. IRIS Data Services are funded through the Seismological Facilities for the Advancement of Geoscience and EarthScope (SAGE) Proposal of the National Science Foundation under Cooperative Agreement EAR-1261681. Tuna Eken and Tuncay Taymaz acknowledge financial support from Alexander von Humboldt Foundation (AvH) towards computational and peripherals resources.

FinansörlerFinansör numarası
National Science FoundationEAR-1261681
Alexander von Humboldt-Stiftung

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