Research of fault segmentation and grouping using near-surface explorations of active intraplate faults ruptured after a large interplate earthquake
| Project/Area Number |
15K01255
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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 |
Natural disaster / Disaster prevention science
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| Research Institution | Central Research Institute of Electric Power Industry |
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Principal Investigator |
Kimura Haruo 一般財団法人電力中央研究所, 地球工学研究所, 主任研究員 (00723652)
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| Research Collaborator |
AOYAGI Yasuhira (一財)電力中央研究所, 地球工学研究所, 上席研究員 (70371416)
HIGASHIMARU Naotsugu (一財)電力中央研究所, 地球工学研究所, 派遣職員
OHKI Rieka (一財)電力中央研究所, 地球工学研究所, 派遣職員
NAKANISHI Toshimichi 京都大学, 理学部附属地球熱学研究施設, 研究員 (10462582)
TANIGUCHI Kaoru (株)パスコ
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 活断層 / アクティブテクトニクス / 物理探査 / 極浅部地下構造 / 地中レーダ / 丹那断層 / 伊豆半島 / 1930年北伊豆地震 / 箱根町断層 / 姫之湯断層 / 早霧湖断層群 / 誘発地震 / 神城断層 |
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| Outline of Final Research Achievements |
We conducted 2D and 3D ground penetrating radar (GPR) profiling across the Hakonemachi, Tanna, Sagiriko-b, and Himenoyu faults. These faults except of the Sagiriko-b fault were ruptured during the Mw=6.9 1930 Kita-Izu earthquake. We also carried out drilling survey near the GPR lines, and analyzed the sedimentary facies, magnetic susceptibility, and radiocarbon ages. As a result, near-surface structures of the faults at survey sites were revealed. The Holocene activity recognized in this study of the Sagiriko-b fault has suggested that the fault and 1930 surface ruptures compose an active fault system in late Quaternary.
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Report
(4 results)
Research Products
(7 results)
