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  1. 131 地震研究所
  2. 東京大学地震研究所研究速報
  3. 14
  1. 0 資料タイプ別
  2. 30 紀要・部局刊行物
  3. 東京大学地震研究所研究速報
  4. 14

1974年伊豆半島沖地震、スペクトル解析による前震及び余震の応力状態の推定

https://doi.org/10.15083/00032034
6001ce52-35bf-44a9-8998-2f2a7996d51a
名前 / ファイル ライセンス アクション
jis0140012.pdf jis0140012.pdf (517.9 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2010-12-22
タイトル
タイトル 1974年伊豆半島沖地震、スペクトル解析による前震及び余震の応力状態の推定
言語
言語 jpn
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 10.15083/00032034
ID登録タイプ JaLC
その他のタイトル
その他のタイトル An Estimation of Stress State of Foreshock and Aftershocks by the Spectral Analysis, the Izu-Hanto-oki Earthquake of 1974
著者 南雲, 昭三郎

× 南雲, 昭三郎

WEKO 71060

南雲, 昭三郎

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大内, 徹

× 大内, 徹

WEKO 71061

大内, 徹

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著者別名
識別子
識別子 71062
識別子Scheme WEKO
姓名
姓名 Nagumo, Shozaburo
著者別名
識別子
識別子 71063
識別子Scheme WEKO
姓名
姓名 Ouchi, Toru
著者所属
著者所属 地震研究所
抄録
内容記述タイプ Abstract
内容記述 Source parameters are determined by the spectral analysis of P waves. Peak frequency of the velocity spectrum is used instead of corner frequency. Brune model is used. The stress drop of the aftershock is estimated as about 1~30 bars. During the chain breaks which frequently appear immediately after the main shock, the stress level locally decreases to appoximately 1/20. High frequency component predominate in the foreshock which occurred about 8 days before the main shock. This shows that the stress level before the main shock was about 3~100 times higher than that of the aftershocks. The spectral analysis is very effective in clarifying the process of earthquake genesis.
内容記述
内容記述タイプ Other
内容記述 1974年伊豆半島沖地震調査概報
書誌情報 地震研究所研究速報

巻 14, p. 99-108, 発行日 1974-09
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AN10165194
日本十進分類法
主題 051.1
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
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