Downloads: 408

Files in This Item:
File Description SizeFormat 
a51a0p06.pdf2.69 MBAdobe PDFView/Open
Title: 2007年能登半島地震の震源モデルと強震動
Other Titles: Source Rupture Process and Strong Motion Generation during the 2007 Noto-Hanto Earthquake
Authors: 岩田, 知孝  kyouindb  KAKEN_id
浅野, 公之  kyouindb  KAKEN_id  orcid (unconfirmed)
栗山, 雅之  KAKEN_name
岩城, 麻子  KAKEN_name
Author's alias: IWATA, Tomotaka
ASANO, Kimiyuki
KURIYAMA, Masayuki
IWAKI, Asako
Keywords: 2007年能登半島地震
2007 Noto-Hanto earthquake
source rupture process
strong ground motion
non-linear soil response
microtremor observation
Issue Date: 1-Jun-2008
Publisher: 京都大学防災研究所
Journal title: 京都大学防災研究所年報. A
Volume: 51
Issue: A
Start page: 121
End page: 127
Abstract: 2007年3月25日午前9時41分に能登半島西海岸付近を震源とするMJ6.9の地震が発生し,震源付近の輪島市等で震度6強となる強い揺れを記録した。本稿では,このような地震被害発生の原因となった強震動生成に関係する震源過程の特徴について,強震記録と測地データを用いた震源モデリングと、震源域からやや離れていたが大きな地震被害が発生した穴水町での地盤震動特性評価に関しての報告を行う。破壊は断層の下方から上方に伝播し,アスペリティは破壊開始点から浅い,やや陸域にあった。穴水の強震動は,この地域特有の表層地盤構造によって周期1秒程度の震動が増幅されたために生じたと考えられる。
The 2007 Noto-Hanto earthquake, occurred on 9:41, 25th March, rocked Noto peninsula area, especially Wajima city and Anamizu town. This manuscript describes the source process of this event and strong motion generation in Anamizu town. Source rupture process was obtained from strong motion and GPS data. One asperity was found just above the rupture starting point and the rupture propagates toward to the shallower part. Analysis of mainshock ground motion data at Anamizu indicates non-linear soil response of the superficial layer. Aftershock and microtremor observation show that the area of this kind of superficial layer almost covers downtown Anamizu.
Related Link:
Appears in Collections:No.51 A

Show full item record

Export to RefWorks

Export Format: 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.