掲載雑誌（和）：
日本地震工学シンポジウム論文集
Vol：
9-1巻
年：
1994年
頁：
415-420頁
著者（和）：
川瀬 博
タイトル（和）：
気象庁８７型強震計記録による北海道周辺の地震の震源特性と道内気象台のサイト特性
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抄録（和）：
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キーワード（和）：
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掲載雑誌（英）：
PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM
著者（英）：
Hiroshi KAWASE
タイトル（英）：
SOURCE CHARACTERISTICS OF EARTHQUAKS AROUND HOKKAIDO AND SITE RESPONSES OF JMA STATIONS OBTAINED FROM JMA87-TYPE STRONG-MOTION RECORDS
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抄録（英）：
Strong motion records of 11 earthquakes, including the Kushiro-Oki earthquake of 1993, observed at 10 JMA stations in Hokkaido were analysed. If local site amplification for each station may not be so large the averaged spectra corrected for attenuation will be flat for wide frequency range. First path effects are corrected by appropriate Q to have averaged hypocentral spectra. Then a local site factor at each site is calculated as a ratio between the observed spectra and the averaged one. It is found that the Kushiro station has strong local effect whose peak frequency and amplification ratio are 3.6Hz and 10, respectively. During the Kushiro-Oki earthquake peak frequency decreases to 2.8Hz, which may suggest the presence of non-linear effect.
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キーワード（英）：
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記事区分：
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区分
委員会論文集