Earthquake history of the yatağan fault (Muğla, sw turkey): Implications for regional seismic hazard assessment and paleoseismology in extensional provinces

Mehran Basmenji*, Hüsnü Serdar Akyüz, Erdem Kirkan, Murat Ersen Aksoy, Gülsen Uçarkuş, Nurettin Yakupoğlu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The southern part of the Western Anatolia Extensional Province is governed by E-W-trending horst-graben systems and NW-SE-oriented active faults. The NW-striking Yatağan Fault is characterised by an almost pure normal sense of motion with a minor dextral strike slip component. Although the settlements within the area have been affected by several earthquake events since ancient times (~2000 BCE), the earthquake potential and history of the Yatağan Fault has remained unknown until a few years ago. Considering the growing dense population within the area, paleoseismology studies were conducted in order to illuminate the historical earthquake activity on the Yatağan Fault. Two trenches were excavated on the fault. Structural and stratigraphic evidence from the both trenches indicated an event horizon of a paleo-earthquake that was dated between 366 and 160 BCE and 342 ± 131 CE. This event horizon most probably reflected the evidence of the latest large earthquake rupture on the Yatağan Fault.

Original languageEnglish
Pages (from-to)161-181
Number of pages21
JournalTurkish Journal of Earth Sciences
Issue number2
Publication statusPublished - 2021

Bibliographical note

Publisher Copyright:


This study is a chapter of the MSc thesis of Mehran Bas-menji, which was funded by the Scientific and Technological Research Council of Turkey (TÜBİTAK; Project No: 116Y179). The authors acknowledge the enthusiastic financial and moral support of Dr. Marjan Basmenji during the studies. We thank Dr. Cengiz Zabcı and Dr. Aynur Dikbaş for their critical comments and suggestions. We are grateful to Prof. Dr. Semih Ergintav and Prof. Dr. Cenk Yaltırak for their advice and fruitful discussions. We are thankful to Dr. Korhan Erturaç, Dr. Eren Şahiner, and Dr. Niyazi Meriç with regards to the OSL dating, and also to Enver Sürmeli and Beste Karatepe for their assistance during the trench studies. We would like to thank 2 anonymous reviewers for their constructive feedback and com-ments, which improved the first version of the manuscript. Some figures in this paper were generated using Generic Mapping Tools (Wessel et al., 2013).

FundersFunder number
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu116Y179


    • Active tectonics
    • Paleoseismology
    • Western Anatolia
    • Yatağan Fault


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