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  4. 中国科学院地球与行星物理重点实验室
Fine Seismogenic Fault Structures and Complex Rupture Characteristics of the 2022 M6.8 Luding, Sichuan Earthquake Sequence Revealed by Deep Learning and Waveform Modeling

文献类型：期刊论文

作者Zhao, Xu2,5; Xiao, Zhuowei2,5; Wang, Wei2,5; Li, Juan1,2,5; Zhao, Ming3; Chen, Shi3; Tang, Lin4
刊名GEOPHYSICAL RESEARCH LETTERS
出版日期2023-09-28
卷号50期号:18页码:11
关键词fault structures spatiotemporal coseismic slip deep learning waveform modeling
ISSN号0094-8276
DOI10.1029/2023GL102976
英文摘要An approximate 236-year interval in major seismic activity near the southern Xianshuihe fault terminated on 5 September 2022 until a destructive M6.8 Luding earthquake. The strike-slip mainshock, accompanied by potent normal-faulting aftershocks, fell short of the previously anticipated M7+ event. Utilizing deep-learning and source inversion techniques, we analyzed dense near-field seismograms to examine detailed fault structures and rupture characteristics. Our high-quality relocated catalog with 7,388 events revealed that the earthquake ruptured an unmapped multiscale fault network. The analysis of the mainshock and 43 M-L = 2.8 aftershocks suggests normal-faulting events relate to the vertical movement of the Gongga Mountain. The sequence length, seismic gaps, and asperities derived from seismicity and waveform modeling imply that the rupture of the M6.8 quake was incomplete, indicating a high risk of a future M6+ event at the northern Moxi segment. These findings hold crucial implications for assessing future seismic hazards in this region.
WOS关键词WENCHUAN EARTHQUAKE ; SOURCE INVERSION
资助项目We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T[IGGCAS-201904] ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS[41974062] ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS[42230111] ; National Natural Science Foundation of China[2022YFF0503101] ; National Key Research and Development Program of China
WOS研究方向Geology
语种英语
WOS记录号WOS:001069392800001
出版者AMER GEOPHYSICAL UNION
资助机构We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; We thank the two anonymous reviewers and editor for their constructive comments. This study benefited from fruitful discussions with William Ellsworth, Jinhai Zhang, Miao Zhang, Huihui Weng, Yen Joe Tan, Jinlai Hao, Lihua Fang, Dun Wang, and Wenkai Chen. T ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; Institute of Geology amp;amp; Geophysics, CAS - Key Research Program of IGGCAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/110856]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Li, Juan
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Heilongjiang Mohe Observ Geophys, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
3.China Earthquake Adm, Inst Geophys, Beijing, Peoples R China
4.Sichuan Earthquake Adm, Chengdu, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Xu,Xiao, Zhuowei,Wang, Wei,et al. Fine Seismogenic Fault Structures and Complex Rupture Characteristics of the 2022 M6.8 Luding, Sichuan Earthquake Sequence Revealed by Deep Learning and Waveform Modeling[J]. GEOPHYSICAL RESEARCH LETTERS,2023,50(18):11.
APA Zhao, Xu.,Xiao, Zhuowei.,Wang, Wei.,Li, Juan.,Zhao, Ming.,...&Tang, Lin.(2023).Fine Seismogenic Fault Structures and Complex Rupture Characteristics of the 2022 M6.8 Luding, Sichuan Earthquake Sequence Revealed by Deep Learning and Waveform Modeling.GEOPHYSICAL RESEARCH LETTERS,50(18),11.
MLA Zhao, Xu,et al."Fine Seismogenic Fault Structures and Complex Rupture Characteristics of the 2022 M6.8 Luding, Sichuan Earthquake Sequence Revealed by Deep Learning and Waveform Modeling".GEOPHYSICAL RESEARCH LETTERS 50.18(2023):11.

入库方式： OAI收割

来源：地质与地球物理研究所

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