Arrest of the Mw 6.8 January 24, 2020 Elaziğ (Turkey) earthquake by shallow fault creep

Ziyadin Cakir*, Uğur Doğan, Ahmet M. Akoğlu, Semih Ergintav, Seda Özarpacı, Alpay Özdemir, Tohid Nozadkhalil, Nurdan Çakir, Cengiz Zabcı, M. Hilmi Erkoç, Mehran Basmenji, Mehmet Köküm, Roger Bilham

*Bu çalışma için yazışmadan sorumlu yazar

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16 Atıf (Scopus)

Özet

It has long been conjectured that creeping sections of strike slip faults arrest or subdue earthquake rupture, partly because of their reduced slip potential and partly because of their velocity-strengthening frictional properties. However, no instrumentally recorded large earthquake (Mw ≥ 6.8) on any well instrumented continental strike-slip fault has thus far occurred that has clearly been arrested at a region of fault creep, rendering it difficult to identify experimentally the parameters that control rupture arrest. Nearfield GPS, InSAR and creepmeter data from the 2020 Elazığ (Turkey) earthquake reveal not only how rupture propagation of a large earthquake is hindered by shallow creep reducing the earthquake size, but also provide important quantitative insights into the late interseismic, coseismic and post seismic behavior of a creeping fault, which has important implications for evaluating hazard potential of a major earthquake on a creeping fault, such as has been forecast for the Hayward fault in California.

Orijinal dilİngilizce
Makale numarası118085
DergiEarth and Planetary Science Letters
Hacim608
DOI'lar
Yayın durumuYayınlandı - 15 Nis 2023

Bibliyografik not

Publisher Copyright:
© 2023 Elsevier B.V.

Finansman

The SAR data are provided by ESA and JAXA (project no. P3152002). This study contains Copernicus Sentinel-1 data (2014-2021). Processing of radar images was performed at TUBITAK ULAKBIM, High Performance and Grid Computing Center (TRUBA resources). This work was supported by TÜBİTAK, Project numbers: 118Y435 and 114Y250. The creepmeter was funded by the National Science Foundation award EAR 2019910. We thank R. Harris and G. Funning for their constructive comments that greatly improved the manuscript. The SAR data are provided by ESA and JAXA (project no. P3152002). This study contains Copernicus Sentinel-1 data (2014-2021). Processing of radar images was performed at TUBITAK ULAKBIM, High Performance and Grid Computing Center (TRUBA resources). This work was supported by TÜBİTAK , Project numbers: 118Y435 and 114Y250 . The creepmeter was funded by the National Science Foundation award EAR 2019910 . We thank R. Harris and G. Funning for their constructive comments that greatly improved the manuscript.

FinansörlerFinansör numarası
TUBITAK ULAKBIM
National Science FoundationEAR 2019910
European Space Agency
Japan Aerospace Exploration AgencyP3152002
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu118Y435, 114Y250

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