Temporal variation in crustal structure derived from hybrid analysis of the seismic attenuation and anisotropy
| Project/Area Number |
21740328
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | Nagoya University |
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Principal Investigator |
TADOKORO Keiichi 名古屋大学, 大学院・環境学研究科, 准教授 (70324390)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 観測手法 / 地震波の減衰 / 地震波異方性 / 地殻構造 / 群発地震 / 火山 / S波偏向異方性 / 地殻内流体 / 地震 / 偏向異方性 |
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| Research Abstract |
We detected a crack structure with high crack density, whose direction is parallel to the epicenter alignment, in the region of the 2009 earthquake swarm at the Hakone volcano.Crustal fluid was included in the above crack structure during the earthquake swarm period. It was suggested that another crack structure was dominant during the period without earthquake swarm. This study presents that crustal structure possibly varies accompanied with occurrences of earthquake swarm.
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Report
(4 results)
Research Products
(5 results)
