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北海道大学地球物理学研究報告 = Geophysical bulletin of Hokkaido University >
第73号 >

2003年十勝沖地震の地震記録に見られる 地盤の非線形応答に関する研究

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Title: 2003年十勝沖地震の地震記録に見られる 地盤の非線形応答に関する研究
Other Titles: A study on nonlinear site response appeared on strong ground motions during the 2003 Tokachi-oki earthquake
Authors: 三輪田, 吾郎1 Browse this author
高井, 伸雄2 Browse this author
清水, 学3 Browse this author
笹谷, 努4 Browse this author
前田, 宜浩5 Browse this author
山本, 明夫6 Browse this author
Authors(alt): MIWADA, Goro1
TAKAI, Nobuo2
SASATANI, Tsutomu4
MAEDA, Takahiro5
Issue Date: 19-Mar-2010
Publisher: 北海道大学大学院理学研究院自然史科学部門(地球物理学)
Journal Title: 北海道大学地球物理学研究報告
Journal Title(alt): Geophysical bulletin of Hokkaido University
Volume: 73
Start Page: 195
End Page: 205
Abstract: Nonlinear site response was observed at TKCH 07 in Toyokoro and HKD 109 in Urakawa during the mainshock(Mj 8.0)and the largest aftershock(Mj 7.1)of the 2003 Tokachi-oki Earthqua ke. At TKCH 07, peak ground acceleration(PGA)was smaller than PGA at the other strong motion station in Toyokoro. At HKD 109, the accelerogram shows a characteristic spiky waveform. Due to this spiky wave, large PGA was observed compared to the other stations in Urakawa, although PGA at HKD 109 was smaller than PGA at JMA Urakawa station during the main shock and smaller aftershocks.
Type: bulletin (article)
Appears in Collections:北海道大学地球物理学研究報告 = Geophysical bulletin of Hokkaido University > 第73号

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