抄録
In September, 2003, we conducted array measurements of microtremors at two sites (AVC and DHM) in Avcilar, the west part of Istanbul, Turkey, to estimate the S-wave velocity structures; this is a continuation of the same type observations carried out just after the 17 August 1999 Izmit earthquake. Heavy damage occurred around the AVC site due to the Izmit earthquake and a permanent strong-motion station is deployed at DHM. We used the SP AC method in estimation of phase velocities of Rayleigh waves within microtremors, and the genetic algorithm in estimation of the S-wave velocity structures from the phase velocities. Then the empirical amplification functions derived from aftershock records were compared with the theoretical ones calculated based on the structures. We obtained reasonably a good agreement between them, except one site of the tripartite array stations in AVC. The S-wave velocity structures estimated in this study provide basic data for prediction of strong-ground motion in Istanbul.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 115-129 |
| ページ数 | 15 |
| ジャーナル | Journal of the Hokkaido University, Faculty of Science, Series VII: Geophysics |
| 巻 | 12 |
| 発行部数 | 2 |
| 出版物ステータス | 出版済み - 12 1 2004 |
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All Science Journal Classification (ASJC) codes
- Ocean Engineering
- Geophysics
これを引用
Estimation of S-wave velocity structures in avcilar-Istanbul from array microtremor measurements. / Ozel, Oguz; Sasatani, Tsutomu; Kudo, Kazuyoshi; Okada, Hiroshi; Kanno, Tatsuo; Tsuno, Seiji; Yoshikawa, Masataka; Noguchi, Shinako; Miyahara, Masakazu; Goto, Hiroyuki.
：: Journal of the Hokkaido University, Faculty of Science, Series VII: Geophysics, 巻 12, 番号 2, 01.12.2004, p. 115-129.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Estimation of S-wave velocity structures in avcilar-Istanbul from array microtremor measurements
AU - Ozel, Oguz
AU - Sasatani, Tsutomu
AU - Kudo, Kazuyoshi
AU - Okada, Hiroshi
AU - Kanno, Tatsuo
AU - Tsuno, Seiji
AU - Yoshikawa, Masataka
AU - Noguchi, Shinako
AU - Miyahara, Masakazu
AU - Goto, Hiroyuki
PY - 2004/12/1
Y1 - 2004/12/1
N2 - In September, 2003, we conducted array measurements of microtremors at two sites (AVC and DHM) in Avcilar, the west part of Istanbul, Turkey, to estimate the S-wave velocity structures; this is a continuation of the same type observations carried out just after the 17 August 1999 Izmit earthquake. Heavy damage occurred around the AVC site due to the Izmit earthquake and a permanent strong-motion station is deployed at DHM. We used the SP AC method in estimation of phase velocities of Rayleigh waves within microtremors, and the genetic algorithm in estimation of the S-wave velocity structures from the phase velocities. Then the empirical amplification functions derived from aftershock records were compared with the theoretical ones calculated based on the structures. We obtained reasonably a good agreement between them, except one site of the tripartite array stations in AVC. The S-wave velocity structures estimated in this study provide basic data for prediction of strong-ground motion in Istanbul.
AB - In September, 2003, we conducted array measurements of microtremors at two sites (AVC and DHM) in Avcilar, the west part of Istanbul, Turkey, to estimate the S-wave velocity structures; this is a continuation of the same type observations carried out just after the 17 August 1999 Izmit earthquake. Heavy damage occurred around the AVC site due to the Izmit earthquake and a permanent strong-motion station is deployed at DHM. We used the SP AC method in estimation of phase velocities of Rayleigh waves within microtremors, and the genetic algorithm in estimation of the S-wave velocity structures from the phase velocities. Then the empirical amplification functions derived from aftershock records were compared with the theoretical ones calculated based on the structures. We obtained reasonably a good agreement between them, except one site of the tripartite array stations in AVC. The S-wave velocity structures estimated in this study provide basic data for prediction of strong-ground motion in Istanbul.
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UR - http://www.scopus.com/inward/citedby.url?scp=58949099117&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:58949099117
VL - 12
SP - 115
EP - 129
JO - Journal of the Hokkaido University, Faculty of Science, Series VII: Geophysics
JF - Journal of the Hokkaido University, Faculty of Science, Series VII: Geophysics
SN - 0441-067X
IS - 2
ER -