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Radiated energy from the mid Niigata, Japan, earthquake of October 23, 2004, and its aftershocks
http://hdl.handle.net/10091/1062
http://hdl.handle.net/10091/1062e6e0ba5e-7c0b-4773-9079-460c7554c566
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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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 |
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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 |
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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 | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1029/2005GL024116 | |||||
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 |