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：
403-408頁
著者（和）：
東 貞成，芝 良昭
タイトル（和）：
１９９３年北海道南西沖地震の余震観測
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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）：
Sadanori HIGASHI, Yoshiaki SHIBA
タイトル（英）：
STRONG MOTION OBSERVATION OF THE AFTERSHOCKS OF THE 1993 HOKKAIDO-NANSEI-OKI EARTHQUAKE
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抄録（英）：
We observed aftershocks of the 1993 Hokkaido-Nansei-Oki Earthquake at temporary stations, OKS and STN. From the spectral ratios of the events to a standard one in three event groups, we found that the stress drop varied by the factor of two between the events of the same magnitude, and that stress drop increased with magnitude in a group. Complex polarization filter was applied to the accelerograms for the major aftershock event(M6.5). From the polarization analysis we found the radiation pattern of the event caused the difference of the strong motion between OKS and STN.
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キーワード（英）：
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記事区分：
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委員会論文集