Study on slow earthquakes by detailed analysis of broadband observation
| Project/Area Number |
20340115
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
IDE Satoshi The University of Tokyo, 大学院・理学系研究科, 准教授 (90292713)
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| Co-Investigator(Kenkyū-buntansha) |
IMANISHI Kazutoshi 産業技術総合研究所, 研究員 (70356517)
HIROSE Hitoshi 防災科学技術研究所, 研究員 (00465965)
SHIOMI Katsuhiko 防災科学技術研究所, 主任研究員 (20500375)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2010: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2008: ¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000)
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| Keywords | 地震現象 / ゆっくり地震 / 深部低周波微動 / 時間関数 / 震源決定 / 地震観測 / 低周波地震 / 東海地域 / ブラウン運動 / 沈み込み帯 |
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| Research Abstract |
To understand slow earthquakes recently discovered in world subduction zones, we observed and investigated broadband seismic data mainly in the Nankai subduction zone. We determined accurate location of tectonic tremor, revealed statistical properties of tremor and slow earthquakes, and presented a model in which tremor zones are formed through long-term plate motion. We also presented a new plate model of the Philippine Sea plate.
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Report
(4 results)
Research Products
(66 results)
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[Journal Article] Deep low-frequency earthquakes in tremor localize to the plate interface in multiple subduction zones2009
Author(s)
Brown, J.R., G.C.Beroza, S.Ide, Ohta, K., Shelly, D.R., Schwartz, S.Y., Rabbel, W., Thorwart, M., Kao, H.
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Journal Title
Geophysical Research Letters 36, L19306
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