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 dil | İngilizce |
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Makale numarası | 118085 |
Dergi | Earth and Planetary Science Letters |
Hacim | 608 |
DOI'lar | |
Yayın durumu | Yayınlandı - 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.
Finansörler | Finansör numarası |
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TUBITAK ULAKBIM | |
National Science Foundation | EAR 2019910 |
European Space Agency | |
Japan Aerospace Exploration Agency | P3152002 |
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu | 118Y435, 114Y250 |