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- W1975002465 abstract "PreviousNext No AccessProceedings of the 10th SEGJ International Symposium, Kyoto, Japan, 20-22 November 2011Dominant periods of H/V spectral ratios of coda waves in the Tokyo Metropolitan Area, using recent seismic networksAuthors: Seiji TsunoHiroaki YamanakaHiroyuki MiuraSaburoh MidorikawaShin'ichi SakaiNaoshi HirataKeiji KasaharaHisanori KimuraTamotsu AketagawaSeiji Tsuno Tokyo Institute of Technology ( and ),Search for more papers by this authorEmail the author at tsuno.s.aa@m.titech.ac.jpEmail the author at yamanaka@depe.titech.ac.jp, Hiroaki Yamanaka Tokyo Institute of Technology ( and ),Search for more papers by this authorEmail the author at tsuno.s.aa@m.titech.ac.jpEmail the author at yamanaka@depe.titech.ac.jp, Hiroyuki Miura Tokyo Institute of Technology ( and ),Search for more papers by this authorEmail the author at tsuno.s.aa@m.titech.ac.jpEmail the author at yamanaka@depe.titech.ac.jp, Saburoh Midorikawa Tokyo Institute of Technology ( and ),Search for more papers by this authorEmail the author at tsuno.s.aa@m.titech.ac.jpEmail the author at yamanaka@depe.titech.ac.jp, Shin'ichi Sakai Earthquake Research Institute, University of Tokyo,Search for more papers by this author, Naoshi Hirata Earthquake Research Institute, University of Tokyo,Search for more papers by this author, Keiji Kasahara Earthquake Research Institute, University of Tokyo,Search for more papers by this author, Hisanori Kimura National Research Institute for Earth Science and Disaster Prevention,Search for more papers by this author, and Tamotsu Aketagawa Hot Springs Research Institute of Kanagawa PrefectureSearch for more papers by this authorhttps://doi.org/10.1190/segj102011-001.23 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Dominant periods of H/V spectral ratios of coda waves well explain fundamental peaks of ellipticities of Rayleigh waves calculated using deep subsurface structures to the seismic bedrock (Sato and Higashi, 2006). Recently, hundreds of seismic stations have been installed in the Tokyo Metropolitan Area such as, K-NET/KiK-net, SK-net and MeSO-net. Especially, MeSO-net (Sakai and Hirata, 2009) installed with an interval distance of about 5 km has high densely covered the Tokyo Metropolitan Area with more than 230 stations. Therefore, we tried to evaluate dominant periods of H/V spectral ratios in the Tokyo Metropolitan Area, using seismic recording data observed by the several networks. At first, we verified the stability of H/V spectral ratios of coda waves from different earthquakes recorded by MeSO-net in the Tokyo Metropolitan Area. We, also, compared the dominant periods of the observed H/V spectral ratios of coda waves to those theoretically calculated using the velocity structures in the Kanto Basin proposed by Yamanaka and Yamada (2006). The dominant periods of H/V spectral ratios match well for sites where shallow basin structures are estimated; however, the dominant periods of H/V spectral ratios are not in good agreement for sites where deep basin structures are estimated. Finally, we examined the distributions of dominant periods of H/V spectral ratios and pseudo-velocity response spectra (damping factor of 5%) in the Kanto Basin for the 2011 Off the Pacific Coast of Tohoku Earthquake, Japan (Mw 9.0), which were obtained using the waveforms provided by the recent networks. Permalink: https://doi.org/10.1190/segj102011-001.23FiguresReferencesRelatedDetailsCited ByCharacteristics of Long-Period Ground Motions in the Tokyo Metropolitan Area and its Vicinity, by Recording Data of the 2011 Off the Pacific Coast of Tohoku Earthquake (Mw 9.0) and the AftershocksJournal of Japan Association for Earthquake Engineering, Vol. 12, No. 5 Proceedings of the 10th SEGJ International Symposium, Kyoto, Japan, 20-22 November 2011ISSN (online):2159-6832Copyright: 2011 Pages: publication data© 2011 Published in electronic format with permission by the Society of Exploration Geophysicists of JapanPublisher:Society of Exploration Geophysicists HistoryPublished: 29 Oct 2012 CITATION INFORMATION Seiji Tsuno, Hiroaki Yamanaka, Hiroyuki Miura, Saburoh Midorikawa, Shin'ichi Sakai, Naoshi Hirata, Keiji Kasahara, Hisanori Kimura, and Tamotsu Aketagawa, (2011), Dominant periods of H/V spectral ratios of coda waves in the Tokyo Metropolitan Area, using recent seismic networks, SEG Global Meeting Abstracts : 1-4. https://doi.org/10.1190/segj102011-001.23 Plain-Language Summary PDF DownloadLoading ..." @default.
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