Stochastic determination of arrival time and initial polarity of seismic waveform
Abstract In this study, we have developed and implemented a new technology capable of probabilistically selecting phase arrival times and determining the initial polarity of seismic waveforms without the requirement of prior information. In this new method, the arrival time is determined through an...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-03-01
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| Series: | Earth, Planets and Space |
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| Online Access: | https://doi.org/10.1186/s40623-025-02161-5 |
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| author | Weilai Pei Jiancang Zhuang Shiyong Zhou |
| author_facet | Weilai Pei Jiancang Zhuang Shiyong Zhou |
| author_sort | Weilai Pei |
| collection | DOAJ |
| description | Abstract In this study, we have developed and implemented a new technology capable of probabilistically selecting phase arrival times and determining the initial polarity of seismic waveforms without the requirement of prior information. In this new method, the arrival time is determined through an eigen-equation associated with the probability distribution of the noise level, which is then used to calculate the probability of the polarity. We have tested this method using synthetic waveforms as well as records from well-established databases. The results demonstrate a high degree of concurrence with manually picked arrival times and polarities (98% accuracy) in the local seismic catalog. This suggests that the proposed method can provide consistent and unified judgments in phase picking tasks. In comparison, this method has shown comparable reliability to existing neural-network-based AI methods while maintaining greater portability due to its lack of dependence on training data. Graphical abstract |
| format | Article |
| id | doaj-art-ed75ccda13a54a7bb723999f0e8e051f |
| institution | Kabale University |
| issn | 1880-5981 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Earth, Planets and Space |
| spelling | doaj-art-ed75ccda13a54a7bb723999f0e8e051f2025-08-20T03:41:41ZengSpringerOpenEarth, Planets and Space1880-59812025-03-0177111210.1186/s40623-025-02161-5Stochastic determination of arrival time and initial polarity of seismic waveformWeilai Pei0Jiancang Zhuang1Shiyong Zhou2School of Earth and Space Sciences, Peking UniversityThe Institute of Statistical MathematicsSchool of Earth and Space Sciences, Peking UniversityAbstract In this study, we have developed and implemented a new technology capable of probabilistically selecting phase arrival times and determining the initial polarity of seismic waveforms without the requirement of prior information. In this new method, the arrival time is determined through an eigen-equation associated with the probability distribution of the noise level, which is then used to calculate the probability of the polarity. We have tested this method using synthetic waveforms as well as records from well-established databases. The results demonstrate a high degree of concurrence with manually picked arrival times and polarities (98% accuracy) in the local seismic catalog. This suggests that the proposed method can provide consistent and unified judgments in phase picking tasks. In comparison, this method has shown comparable reliability to existing neural-network-based AI methods while maintaining greater portability due to its lack of dependence on training data. Graphical abstracthttps://doi.org/10.1186/s40623-025-02161-5P-wave arrival time pickingInitial-motion polarity determinationMinimum entropy criterionTransitive probability matrix |
| spellingShingle | Weilai Pei Jiancang Zhuang Shiyong Zhou Stochastic determination of arrival time and initial polarity of seismic waveform Earth, Planets and Space P-wave arrival time picking Initial-motion polarity determination Minimum entropy criterion Transitive probability matrix |
| title | Stochastic determination of arrival time and initial polarity of seismic waveform |
| title_full | Stochastic determination of arrival time and initial polarity of seismic waveform |
| title_fullStr | Stochastic determination of arrival time and initial polarity of seismic waveform |
| title_full_unstemmed | Stochastic determination of arrival time and initial polarity of seismic waveform |
| title_short | Stochastic determination of arrival time and initial polarity of seismic waveform |
| title_sort | stochastic determination of arrival time and initial polarity of seismic waveform |
| topic | P-wave arrival time picking Initial-motion polarity determination Minimum entropy criterion Transitive probability matrix |
| url | https://doi.org/10.1186/s40623-025-02161-5 |
| work_keys_str_mv | AT weilaipei stochasticdeterminationofarrivaltimeandinitialpolarityofseismicwaveform AT jiancangzhuang stochasticdeterminationofarrivaltimeandinitialpolarityofseismicwaveform AT shiyongzhou stochasticdeterminationofarrivaltimeandinitialpolarityofseismicwaveform |