000012235 001__ 12235
000012235 005__ 20141205160033.0
000012235 04107 $$aeng
000012235 046__ $$k2008-10-12
000012235 100__ $$aYoshimura, Chiaki
000012235 24500 $$aLong-Period Ground Motion Simulation of 2004 off the KII Peninsula Earthquakes and Prediction of Future M8 Class Earthquakes along Nankai Trough Subduction Zone, South of Japan Island

000012235 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000012235 260__ $$b
000012235 506__ $$arestricted
000012235 520__ $$2eng$$aWe simulate long-period ground motions of observed Magnitude 7 class earthquake and predict those of future Magnitude 8 class large subduction earthquakes along Nankai Trough, south off Japanese archipelago. The numerical simulations are performed by a large-scale finite element method considering three-dimensional subsurface structure including both of propagation pass structure and large-scale sedimentary basin structure of Kanto plain on which Tokyo metropolitan is located. To verify the three-dimensional subsurface ground model, we simulate the 2004 off the Kii peninsula earthquake that occurred near Nankai Trough. The soft layer of the sedimentary wedge along Nankai trough has the effect to elongate the duration of ground motion and lessen the amplitude. We simulated the ground motion of the Tokai-Tonankai coupled earthquake. Long period ground motion reaches Kanto plain about 130 seconds after the rupture starts. The principal motion continues more than 4 minutes. The model shown in this study still has a limitation to underestimate the amplified ground motions in the Kanto plain. It is necessary to adjust velocity structure and Q value to obtain a better model.

000012235 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012235 653__ $$aTonankai Earthquake, Tokai Earthquake, Finite Element Method, Sedimentary Wedge, Underground structure model, Kanto Plain

000012235 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000012235 720__ $$aYoshimura, Chiaki$$iYamamoto, Yu$$iHisada, Yoshiaki
000012235 8560_ $$ffischerc@itam.cas.cz
000012235 8564_ $$s2521645$$uhttps://invenio.itam.cas.cz/record/12235/files/S10-048.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S10-048.
000012235 962__ $$r9324
000012235 980__ $$aPAPER