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

doi:10.1016/j.epsl.2023.118085

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

^*Corresponding author for this work

Department of Geological Engineering

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

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.

Original language	English
Article number	118085
Journal	Earth and Planetary Science Letters
Volume	608
DOIs	https://doi.org/10.1016/j.epsl.2023.118085
Publication status	Published - 15 Apr 2023

Bibliographical note

Publisher Copyright:
© 2023 Elsevier B.V.

Funding

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.

Funders	Funder number
TUBITAK ULAKBIM
National Science Foundation	EAR 2019910
European Space Agency
Japan Aerospace Exploration Agency	P3152002
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu	118Y435, 114Y250

Keywords

afterslip
creep
earthquake cycle
rupture arrest

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.epsl.2023.118085

Cite this

Cakir, Z., Doğan, U., Akoğlu, A. M., Ergintav, S., Özarpacı, S., Özdemir, A., Nozadkhalil, T., Çakir, N., Zabcı, C., Erkoç, M. H., Basmenji, M., Köküm, M., & Bilham, R. (2023). Arrest of the Mw 6.8 January 24, 2020 Elaziğ (Turkey) earthquake by shallow fault creep. Earth and Planetary Science Letters, 608, Article 118085. https://doi.org/10.1016/j.epsl.2023.118085

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abstract = "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.",

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AU - Cakir, Ziyadin

AU - Doğan, Uğur

AU - Akoğlu, Ahmet M.

AU - Ergintav, Semih

AU - Özarpacı, Seda

AU - Özdemir, Alpay

AU - Nozadkhalil, Tohid

AU - Çakir, Nurdan

AU - Zabcı, Cengiz

AU - Erkoç, M. Hilmi

AU - Basmenji, Mehran

AU - Köküm, Mehmet

AU - Bilham, Roger

PY - 2023/4/15

Y1 - 2023/4/15

N2 - 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.

AB - 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.

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KW - creep

KW - earthquake cycle

KW - rupture arrest

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DO - 10.1016/j.epsl.2023.118085

M3 - Article

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SN - 0012-821X

VL - 608

JO - Earth and Planetary Science Letters

JF - Earth and Planetary Science Letters

M1 - 118085

ER -

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

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

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