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  1. 060 工学部
  2. 0601 学術論文

Radiated energy from the mid Niigata, Japan, earthquake of October 23, 2004, and its aftershocks

http://hdl.handle.net/10091/1062
e6e0ba5e-7c0b-4773-9079-460c7554c566
名前 / ファイル ライセンス アクション
2005_Izutani_GRL.pdf 2005_Izutani_GRL.pdf (297.2 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2008-05-30
タイトル
言語 en
タイトル Radiated energy from the mid Niigata, Japan, earthquake of October 23, 2004, and its aftershocks
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Izutani, Y

× Izutani, Y

WEKO 38855

Izutani, Y

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信州大学研究者総覧へのリンク
氏名 Izutani, Y
URL http://soar-rd.shinshu-u.ac.jp/profile/ja.HFSpZVkh.html
出版者
出版者 AMER GEOPHYSICAL UNION
引用
内容記述タイプ Other
内容記述 GEOPHYSICAL RESEARCH LETTERS. 32(21): L21313 (2005)
書誌情報 GEOPHYSICAL RESEARCH LETTERS

巻 32, 号 21, 発行日 2005-11-11
抄録
内容記述タイプ Abstract
内容記述 The Mid Niigata earthquake of October 23, 2004, is a shallow reverse-faulting event with M-w = 6.6. We analyze transverse component accelerograms of the main shock and four aftershocks (M-w = 4.0 similar to 5.5) recorded at 29 strong motion observation stations. The epicenters of the four aftershocks are located within 5 km from that of the main shock. The stations are well distributed around the epicenters and their epicentral distances are between 15 and 60 km. We calculate spectral ratio between records of the main shock and each of the aftershocks in order to obtain source spectral ratio by empirically removing the effects of wave propagation path and surface layers at the stations. Thus obtained source spectral ratio is inconsistent with that expected from the self-similar omega-square model. Fitting omega-square source spectral ratio with variable corner frequency to the observed spectral ratio, radiated energy and corner frequency are estimated. Radiated energy from the main shock is 3.2 x 10(14) J. Although energy-to-moment ratios for the main shock and the aftershocks are all distributed within a narrow range from 8 x 10(-6) to 4 x 10(-5), they definitely increase with the event size. This scale dependence is quite similar to that obtained previously for strike-slip events in Japan. The relationship between the seismic moment, M-0, and the corner frequency, f(0), is M-0 proportional to f(0) (-3.3 +/- 0.2). These results suggest a break in self-similarity.
資源タイプ(コンテンツの種類)
内容記述タイプ Other
内容記述 Article
ISSN
収録物識別子タイプ ISSN
収録物識別子 0094-8276
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA00657102
DOI
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.1029/2005GL024116
関連名称
関連名称 10.1029/2005GL024116
権利
権利情報 Copyright© 2005 American Geophysical Union.
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
WoS
表示名 Web of Science
URL http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000233354300004
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