| Project/Area Number |
20310104
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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 |
Natural disaster science
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| Research Institution | Kyoto University |
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Principal Investigator |
IGUCHI Masato Kyoto University, 防災研究所, 准教授 (60144391)
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| Co-Investigator(Kenkyū-buntansha) |
TAMEGURI Takeshi 京都大学, 防災研究所, 助教 (70335222)
YAKIWARA Hiroshi 鹿児島大学, 理工学研究科, 助教 (60295235)
SHIMANO Taketo 富士常葉大学, 環境防災研究科, 准教授 (70396894)
WATADA Shingo 東京大学, 地震研究所, 助教 (30301112)
OIKAWA Jun 東京大学, 地震研究所, 助教 (40262084)
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| Co-Investigator(Renkei-kenkyūsha) |
YOKOO Akihiko 京都大学, 理学研究科, 助教 (70420403)
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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 |
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2010: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2009: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2008: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
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| Keywords | 火山噴火 / 爆発地震 / 空気振動 / 地殻変動 / 火山灰放出量 / 火山爆発強度指標 / 総噴出量 / 爆発強度 / 初期変動率 / 火山爆発 / 地盤変動 / 火山爆発指標 / 火山灰 |
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| Research Abstract |
Volcanic Explosivity Index determined immediately after the explosive eruptions are proposed based on volcano observation at Sakurajima, Suwanosejima and Semeru volcanoes. Total amount of ejecta and initial velocity of eruption are available to Volcanic Explosivity Index and they are independent of each other. Initial velocity of eruption can be determined by moment of explosion earthquake, amplitude of air-shock and amount of strain-step. Total amount of ground deformation and total volume of eject can be estimated from temporal change of ground deformation of a few seconds from the beginning of explosion.
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