Preliminary Evaluation of Crustal Medium Parameters in Western China
The establishment of attenuation relation of ground motion is always an important research content in engineering earthquake field. In seismology-based ground motion attenuation relationship and ground motion simulation using the stochastic method, regional parameters are necessary. These parameters...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/43/e3sconf_icemee2023_01003.pdf |
| _version_ | 1797756200230584320 |
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| author | Zheng Xingqun Tao Zhengru |
| author_facet | Zheng Xingqun Tao Zhengru |
| author_sort | Zheng Xingqun |
| collection | DOAJ |
| description | The establishment of attenuation relation of ground motion is always an important research content in engineering earthquake field. In seismology-based ground motion attenuation relationship and ground motion simulation using the stochastic method, regional parameters are necessary. These parameters involve stress drop Δσ, two segmentation points R1 and R2 of the geometric spreading item, Q0 and η of the inelastic attenuation item and the near-surface high-frequency decay parameter κ0, which reflect the regional crustal medium and site characteristics and have little relation with the earthquake size. In this paper, we take Sichuan, Yunnan and Xinjiang regions in western China as examples and we inverse the parameters for each region by micro-genetic algorithm. The inversion ranges of crustal media parameters in the three regions were determined respectively. Finally, we get the inversion results of every parameters and find that the parameters of the three regions have a great difference. |
| first_indexed | 2024-03-12T17:58:02Z |
| format | Article |
| id | doaj.art-fc5a7b939a764987b72c9745b1668050 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-12T17:58:02Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-fc5a7b939a764987b72c9745b16680502023-08-02T13:19:06ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014060100310.1051/e3sconf/202340601003e3sconf_icemee2023_01003Preliminary Evaluation of Crustal Medium Parameters in Western ChinaZheng Xingqun0Tao Zhengru1Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake AdministrationKey Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake AdministrationThe establishment of attenuation relation of ground motion is always an important research content in engineering earthquake field. In seismology-based ground motion attenuation relationship and ground motion simulation using the stochastic method, regional parameters are necessary. These parameters involve stress drop Δσ, two segmentation points R1 and R2 of the geometric spreading item, Q0 and η of the inelastic attenuation item and the near-surface high-frequency decay parameter κ0, which reflect the regional crustal medium and site characteristics and have little relation with the earthquake size. In this paper, we take Sichuan, Yunnan and Xinjiang regions in western China as examples and we inverse the parameters for each region by micro-genetic algorithm. The inversion ranges of crustal media parameters in the three regions were determined respectively. Finally, we get the inversion results of every parameters and find that the parameters of the three regions have a great difference.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/43/e3sconf_icemee2023_01003.pdf |
| spellingShingle | Zheng Xingqun Tao Zhengru Preliminary Evaluation of Crustal Medium Parameters in Western China E3S Web of Conferences |
| title | Preliminary Evaluation of Crustal Medium Parameters in Western China |
| title_full | Preliminary Evaluation of Crustal Medium Parameters in Western China |
| title_fullStr | Preliminary Evaluation of Crustal Medium Parameters in Western China |
| title_full_unstemmed | Preliminary Evaluation of Crustal Medium Parameters in Western China |
| title_short | Preliminary Evaluation of Crustal Medium Parameters in Western China |
| title_sort | preliminary evaluation of crustal medium parameters in western china |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/43/e3sconf_icemee2023_01003.pdf |
| work_keys_str_mv | AT zhengxingqun preliminaryevaluationofcrustalmediumparametersinwesternchina AT taozhengru preliminaryevaluationofcrustalmediumparametersinwesternchina |