Seismic versus aseismic slip for the 2023 Kahramanmaraş earthquake doublet
Abstract Interplay between seismic and aseismic slip could shed light on the frictional properties and seismic potential of faults. The well-recorded 2023 Kahramanmaraş earthquake doublet provides an excellent opportunity to understand their partitioning on strike-slip faults. Here, we utilize InSAR...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-56350-7 |
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| author | Rumeng Guo Xiongwei Tang Yijun Zhang Wenting Zhang Ming Qin Jianqiao Xu Jiangcun Zhou Xuhao Zou Heping Sun |
| author_facet | Rumeng Guo Xiongwei Tang Yijun Zhang Wenting Zhang Ming Qin Jianqiao Xu Jiangcun Zhou Xuhao Zou Heping Sun |
| author_sort | Rumeng Guo |
| collection | DOAJ |
| description | Abstract Interplay between seismic and aseismic slip could shed light on the frictional properties and seismic potential of faults. The well-recorded 2023 Kahramanmaraş earthquake doublet provides an excellent opportunity to understand their partitioning on strike-slip faults. Here, we utilize InSAR and strong motion data to derive the coseismic rupture during the doublet, ~4-month postseismic afterslip, and slip distributions of two Mw>6.0 aftershocks. Our results show that afterslip appears to be complementary to coseismic slip and aftershocks, accounting for ~11.3% of the coseismic moment. Aftershocks mainly fall within the regions of positive Coulomb stresses caused by afterslip and follow a temporal decay similar to that of afterslip, indicating that aftershock production is the failure of small asperities loaded by the afterslip. The early postseismic afterslip is released ~93.7% aseismically and ~6.3% seismically by aftershocks. Our modeling results thus depict a complex fault system with highly variable slip patterns and stresses. |
| format | Article |
| id | doaj-art-c3b624ae4295442599769bac2bdd4239 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-c3b624ae4295442599769bac2bdd42392025-01-26T12:42:29ZengNature PortfolioNature Communications2041-17232025-01-0116111310.1038/s41467-025-56350-7Seismic versus aseismic slip for the 2023 Kahramanmaraş earthquake doubletRumeng Guo0Xiongwei Tang1Yijun Zhang2Wenting Zhang3Ming Qin4Jianqiao Xu5Jiangcun Zhou6Xuhao Zou7Heping Sun8State Key Laboratory of Precision Geodesy, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of SciencesState Key Laboratory of Precision Geodesy, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of SciencesState Key Laboratory of Precision Geodesy, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of SciencesState Key Laboratory of Precision Geodesy, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of SciencesState Key Laboratory of Precision Geodesy, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of SciencesState Key Laboratory of Precision Geodesy, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of SciencesState Key Laboratory of Precision Geodesy, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of SciencesState Key Laboratory of Geological Processes and Mineral Resources, School of Geophysics and Geomatics, China University of GeosciencesState Key Laboratory of Precision Geodesy, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of SciencesAbstract Interplay between seismic and aseismic slip could shed light on the frictional properties and seismic potential of faults. The well-recorded 2023 Kahramanmaraş earthquake doublet provides an excellent opportunity to understand their partitioning on strike-slip faults. Here, we utilize InSAR and strong motion data to derive the coseismic rupture during the doublet, ~4-month postseismic afterslip, and slip distributions of two Mw>6.0 aftershocks. Our results show that afterslip appears to be complementary to coseismic slip and aftershocks, accounting for ~11.3% of the coseismic moment. Aftershocks mainly fall within the regions of positive Coulomb stresses caused by afterslip and follow a temporal decay similar to that of afterslip, indicating that aftershock production is the failure of small asperities loaded by the afterslip. The early postseismic afterslip is released ~93.7% aseismically and ~6.3% seismically by aftershocks. Our modeling results thus depict a complex fault system with highly variable slip patterns and stresses.https://doi.org/10.1038/s41467-025-56350-7 |
| spellingShingle | Rumeng Guo Xiongwei Tang Yijun Zhang Wenting Zhang Ming Qin Jianqiao Xu Jiangcun Zhou Xuhao Zou Heping Sun Seismic versus aseismic slip for the 2023 Kahramanmaraş earthquake doublet Nature Communications |
| title | Seismic versus aseismic slip for the 2023 Kahramanmaraş earthquake doublet |
| title_full | Seismic versus aseismic slip for the 2023 Kahramanmaraş earthquake doublet |
| title_fullStr | Seismic versus aseismic slip for the 2023 Kahramanmaraş earthquake doublet |
| title_full_unstemmed | Seismic versus aseismic slip for the 2023 Kahramanmaraş earthquake doublet |
| title_short | Seismic versus aseismic slip for the 2023 Kahramanmaraş earthquake doublet |
| title_sort | seismic versus aseismic slip for the 2023 kahramanmaras earthquake doublet |
| url | https://doi.org/10.1038/s41467-025-56350-7 |
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