| Project/Area Number |
20540412
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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 | Hiroshima University |
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Principal Investigator |
SUDA Naoki Hiroshima University, 大学院・理学研究科, 准教授 (10222069)
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| Project Period (FY) |
2008 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 深部非火山性微動 / 超低周波地震 / スロー地震 / 豊後水道 / 広帯域地震計 / 低周波微動 / 非火山性微動 |
|---|
| Research Abstract |
To investigate activity of deep non-volcanic tremor and very low-frequency earthquake in the Bungo Channel region, the westernmost part of slow-earthquake region in southwest Japan, we modified the data-logging system of broadband seismic station in Hiburijima Island (Uwajima City, Ehime Prefecture), and also installed a new broadband seismic station in Tsurumisaki Peninsula (Saiki City, Oita Prefecture). From analyses of the data from those stations, it has been shown that about 85 % of non-volcanic tremors are associated with very low-frequency earthquakes, and they share the common source region.
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