掲載雑誌(和):日本地震工学シンポジウム論文集
Vol:11巻
年: 2002年
頁: 551-554頁
著者(和): -
タイトル(和): -
抄録(和): -
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掲載雑誌(英): THE EARTHQUAKE ENGINEERING SYMPOSIUM PROCEEDINGS
著者(英): Shinichi MATSUSHIMA, Toshiaki SATO
タイトル(英): FREQUENCY, DISTANCE, AND TIME DEPENDENCE OF RADIATION PATTERN CHARACTERISTICS OF STRONG MOTIONS
抄録(英): We investigated frequency,distance and time dependence of radiation pattern characteristics observed in strong motion data at KiK-net sites for the October 8,2000 aftershock (M J 5.5)of the 2000 Tottori-ken Seibu, Japan, earthquake. The results are as follows. 1)For S-wave part, at frequencies lower than 1 to 2 Hz,the observed radiation pattern characteristics were simulated well by the theoretical radiation pattern characteristics. But at frequencies higher than 3 Hz, the observed radiation pattern characteristics drastically changed and became isotropic.2)For coda-part, the observed radiation pattern characteristics were not consistent with the theoretical ones for S-waves.
キーワード(英): frequency dependence, strong motion, radiation pattern characteristics, R/T ratio, time dependence time
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区分: 委員会論文集