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ID 13893
Eprint ID
13893
フルテキストURL
著者
小田 仁 Department of Earth Sciences, Okayama University
Ito Aki Observation Center for Prediction of Earthquakes and Volcanic Eruptions, Tohoku University
抄録
Long-period coda waves were recorded on the vertical-component seismograms of aftershocks of the Hyogo-ken Nanbu earthquake, 1995. We identify the long-period coda waves as Rayleigh wave, because they appear after the S-arrival times and exhibit the normal dispersion that propagation velocity of the coda waves increases with an increase in period. By applying the moving window analysis to the coda waves from nine aftershocks, the group velocities are determined as a function of period within the range of 2 to 8 s. The group velocity dispersion data are inverted to investigate the S-wave velocity structure of the upper crust. The S-wave velocity structure is consistent with those obtained in previous studies using traval time analysis of bood waves.
キーワード
surface wave dispersion
coda wave
S-wave velocity structure
upper crust
Hyogo-ken
発行日
2000-09-20
出版物タイトル
Okayama University Earth Science Report
出版物タイトル(別表記)
岡山大学地球科学研究報告
7巻
1号
出版者
岡山大学理学部地球科学教室
出版者(別表記)
Department of Earth Sciences Faculty of Science, Okayama University
開始ページ
15
終了ページ
18
ISSN
1340-7414
NCID
AN10506284
資料タイプ
紀要論文
言語
English
OAI-PMH Set
岡山大学
著作権者
岡山大学地球科学研究報告編集委員会
論文のバージョン
publisher
査読
無し
Sort Key
2
Eprints Journal Name
esr