2013 Fiscal Year Final Research Report
Development of a compact low-power-consumption strong motion observation system and investigation of the deep ground structures by using seismic interferometry
| Project/Area Number |
23540499
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | Yokohama City University |
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Principal Investigator |
YOSHIMOTO Kazuo 横浜市立大学, その他の研究科, 教授 (10281966)
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| Co-Investigator(Kenkyū-buntansha) |
NAKAHARA Hisashi 東北大学, 理学研究科, 准教授 (20302078)
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| Co-Investigator(Renkei-kenkyūsha) |
SATO Hiroshi 東京大学, 地震研究所, 教授 (00183385)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 地震波干渉法 / 地盤構造 / 地震基盤 / 長周期地震動 |
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| Research Abstract |
Our results of this study are summarized as follows: (1) We developed a compact low-power-consumption strong motion observation system, (2) We conducted temporal seismic observations at 11 sites in the northeastern Kanto Basin, (3) We detected temporal seismic velocity changes at shallow depths by seismic interferometry of coda waves from local earthquakes (4) We investigated the deep ground structure of the Kanto Basin by using a seismic interferometry of local earthquake waveforms. Using a velocity structure model proposed in this study, we successfully explained the observed characteristics of the Love wave excitation at the northern edge of the Kanto Basin.
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Research Products
(17 results)
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[Presentation] Seismic basement S-wave reflection beneath the Tokyo Metropolitan Area inferred from seismic interferometry2011
Author(s)
Yoshimoto, K., N. Hirata, K. Kasahara, K. Obara, H. Sato, S. Sakai, H. Tsuruoka, S. Nakagawa, H. Kimura, T. Tanada, T. Aketagawa, H. Nakahara, and S. Kinoshita
Organizer
Symposium on Recent Development in Seismic Wave Scattering and Heterogeneities in the Earth
Place of Presentation
Tohoku University (Sendai City)
Year and Date
2011-10-28
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