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Variations in the Characteristic Amplitude of Tectonic Tremor Induced by Long-Term Slow Slip Events
https://doi.org/10.24517/00062386
https://doi.org/10.24517/000623865dac8653-14fd-488a-bdda-a4f7877c9e38
名前 / ファイル | ライセンス | アクション |
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SC-PR-HIRAMATSU-Y-1029.pdf (4.5 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-06-03 | |||||
タイトル | ||||||
タイトル | Variations in the Characteristic Amplitude of Tectonic Tremor Induced by Long-Term Slow Slip Events | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
ID登録 | ||||||
ID登録 | 10.24517/00062386 | |||||
ID登録タイプ | JaLC | |||||
著者 |
Nakamoto, Keita
× Nakamoto, Keita× Hiramatsu, Yoshihiro× Matsuzawa, Takanori× Mizukami, Tomoyuki |
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著者別表示 |
平松, 良浩
× 平松, 良浩× 松澤, 孝紀× 水上, 知行 |
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提供者所属 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 金沢大学理工研究域地球社会基盤学系 | |||||
書誌情報 |
Journal of Geophysical Research. Solid Earth 巻 126, 号 5, p. e2020JB021138, 発行日 2021-04-10 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2169-9356 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2169-9313 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10819743 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1029/2020JB021138 | |||||
出版者 | ||||||
出版者 | American Geophysical Union / Wiley | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Long-term slow slip events (L-SSEs) often excite short-term slow slips events (S-SSEs) and tectonic tremor in the zone of episodic tremor and slip (ETS). However, the factors controlling the occurrence of primary versus excited tremor events remain unclear. To elucidate these factors, we analyzed tectonic tremor events in and around the Bungo Channel (Nankai subduction zone), where L-SSEs are known to excite tremor and S-SSEs in the ETS zone. We focused on the spatial distribution of the characteristic amplitude (CA) of tremor, determined from the duration-amplitude distributions of tremor events, as an indicator of the properties of the tremor source. CAs are large in L-SSE slip areas and small in adjacent areas. The difference between CA values during tremor-excitation periods (L-SSEs) and the intervening periods (ΔCA) is positive in the slip area, negative in adjacent areas, and tends toward zero in the far field. We suggest that the heterogeneous distributions of CA and ΔCA reflect the heterogeneous effective strengths of tremor patches, which might be related to petrological properties, and stress and pore-fluid pressure variations induced by L-SSEs, respectively. The upward migration of fluid from the ETS zone along the plate interface might modulate the effective stress and strength states of tremor patches during L-SSEs. | |||||
権利 | ||||||
権利情報 | Copyright © 2021 American Geophysical Union | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://agupubs.onlinelibrary.wiley.com/agu/jgr/journal/10.1002/%28ISSN%292169-9356/ | |||||
関連名称 | http://agupubs.onlinelibrary.wiley.com/agu/jgr/journal/10.1002/%28ISSN%292169-9356/ | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JB021138 | |||||
関連名称 | https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JB021138 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://sites.agu.org/ | |||||
関連名称 | http://sites.agu.org/ |