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Structure and Physical Properties of Fracture Zone Derived From Seismic Observations at the Nojima Fault and the Western Tottori Earthquake Fault, Japan
https://doi.org/10.15083/0000032569
https://doi.org/10.15083/0000032569e8bdd25a-6069-4abe-b113-1ab4697572f0
名前 / ファイル | ライセンス | アクション |
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IHO78105.pdf (2MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2007-04-23 | |||||
タイトル | ||||||
タイトル | Structure and Physical Properties of Fracture Zone Derived From Seismic Observations at the Nojima Fault and the Western Tottori Earthquake Fault, Japan | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | fracture zone | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | physical property | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | fault behavior | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | shear-wave splitting | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | induced earthquak | |||||
主題Scheme | Other | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15083/0000032569 | |||||
ID登録タイプ | JaLC | |||||
その他のタイトル | ||||||
その他のタイトル | 野島断層・鳥取県西部における地震観測による破砕帯の構造と物理的特性 : 特集「地震発生の物理からみた地震発生帯堀削」 | |||||
著者 |
Tadokoro, Keiichi
× Tadokoro, Keiichi |
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著者別名 | ||||||
識別子 | 125789 | |||||
識別子Scheme | WEKO | |||||
姓名 | 田所, 敬一 | |||||
著者所属 | ||||||
著者所属 | Research Center for Seismology and Volcanology, Nagoya University | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Research on active faults, their structure, physical properties, and fault behavior during an earthquake cycle is important for the earthquake prediction. In this paper, we summarize the results of our seismological analyses of shear-wave splitting and injection-induced earthquakes on the basis of seismic observations at active faults. The shear-wave splitting observations performed on the fracture zone of the 2000 Western Tottori, Japan, earthquake revealed the fracture distribution inside the fracture zone, causing about 1% anisotropy. We can detect the detailed fracture distribution inside a fracture zone through shear-wave splitting observations with a dense (less than several kilometers in interval) seismic array set on and along the fracture zone. The analysis of earthquakes induced by water injection experiments at the Nojima fault, Japan, depicted that the fracture zone is permeable and has a low coefficient of friction immediately after the mainshock. Long-term monitoring of clustered microearthquake activity at the Nojima fault revealed the heterogeneity of crustal strength. We point out that we need to clearly define “fracture zone” for each research background in discussions of fracture zones because the thickness of the fracture zone varies depending on the research method. | |||||
書誌情報 |
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo 巻 78, 号 1, p. 67-74, 発行日 2003 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00408972 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00162258 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
日本十進分類法 | ||||||
主題 | 51.1 | |||||
主題Scheme | NDC | |||||
出版者 | ||||||
出版者 | 東京大学地震研究所 | |||||
出版者別名 | ||||||
Earthquake Research Institute, University of Tokyo |