000010178 001__ 10178
000010178 005__ 20141205155700.0
000010178 04107 $$aeng
000010178 046__ $$k2008-10-12
000010178 100__ $$aHao, Ken Xian-Sheng
000010178 24500 $$aSedimentary Thickness in the Eastern Kanto Basin Estimated by All-Pass Receiver Function Using Dense Earthquake Observations

000010178 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010178 260__ $$b
000010178 506__ $$arestricted
000010178 520__ $$2eng$$aThe sedimentary thickness varied to several thousand meters played an important role for the long-period ground motions, which were observed in the Kanto (Tokyo) basin recently. However, exploration of sedimentary thickness is costly. Utilizing dense seismographic stations of K-NET, KiK-net and Sk-net, we studied the thickness variation by the All-pass receiver function (APRF) method. At each station, the travel-time differences between converted PS and P waves, Tps-p, were calculated from recordings with condition of clear initial P waves in a range about 100 km distance. The conversion of the Tps-p to the sedimentary thickness is a complex question since both P and S waves velocities related, as well as thickness. The conversion question was figured out by regression functions for the thickness factor H to the wave’s travel-time differences between S and P waves, Ts-Tp, from deep-well VSP data. By combination of hundreds of the Tps-p results and the regression functions, we estimated the thickness of sedimentary basin beneath each station and obtained the thickness contours in the eastern Kanto basin. The results at several dozen locations were well confirmed by deep-hotspring wells and fault investigations.

000010178 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010178 653__ $$aSedimentary thickness, Receiver Function, VSP, Regression Function, Converted wave

000010178 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010178 720__ $$aHao, Ken Xian-Sheng$$iFujiwara, Hiroyuki
000010178 8560_ $$ffischerc@itam.cas.cz
000010178 8564_ $$s1139229$$uhttps://invenio.itam.cas.cz/record/10178/files/S10-001.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S10-001.
000010178 962__ $$r9324
000010178 980__ $$aPAPER