Geodetic research on volcanic activity of Anatahan island, the Northern Mariana Islands
Project/Area Number |
19540447
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Solid earth and planetary physics
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Research Institution | Kyushu University |
Principal Investigator |
MATSUSHIMA Takeshi Kyushu University, 大学院・理学研究院, 准教授 (40222301)
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Co-Investigator(Kenkyū-buntansha) |
SUGIMOTO Takeshi 京都大学, 大学院・理学研究科, 研究機関研究員 (30380570)
NAGAI Daisuke 九州大学, 大学院・理学研究院, 研究機関研究員 (90457440)
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Research Collaborator |
TABEI Takao 高知大学, 自然科学系, 教授 (40207220)
NAKADA Setsuya 東京大学, 地震研究所, 教授 (60128056)
MORITA Yuich 東京大学, 地震研究所, 教授 (30220073)
MAENO Fukashi 東京大学, 地震研究所, 助教 (20444078)
|
Project Period (FY) |
2007 – 2009
|
Project Status |
Completed (Fiscal Year 2009)
|
Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2007: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
|
Keywords | アナタハン火山 / GPS / 干渉SAR / マグマ溜まり / 火山噴火 / 地殻変動 / 北マリアナ諸島 / 伊豆-マリアナ弧 / 国際情報交換(北マリアナ連邦) / 背弧拡大 / 国際情報交換 / 北マリアナ連邦 |
Research Abstract |
We estimated eruption mechanism and underground structure of the Anatahan Volcano, in the Northern Mariana Island, using geodetic method such as GPS survey ground Tilt measurement, and In-SAR analysis. The magma chamber of the volcano is existed at 5km below ground and 2km off west of the island, and conduit rose obliquely to the east eruptive crater. Also we could estimate the thickness of the volcanic ash fall using In-SAR analysis.
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Report
(4 results)
Research Products
(22 results)
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[Presentation] Phreatomagmatic eruption in Anatahan volcano, northern Marianas2009
Author(s)
Nakada, S., Y. Morita, M. Yoshimoto, F. Maeno, A. Watanabe, T. Matsu- shima, T. Tabei, T. Watanabe, J.T. Camacho
Organizer
3rd Maar Conference
Place of Presentation
Malargue, Mendoza, Ar- gentina
Year and Date
2009-04-14
Related Report
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[Presentation] Geodetic Observations at Anatahan Volcano, Northern Mariana Islands2009
Author(s)
Matsushima, T., T. Tabei, T. Wata-nabe, Y. Morita, F. Maeno, A. Wata- nabe, J. Oikawa, T. Kato
Organizer
6th Bien-nial Workshop on Japan-Kamchatka-Alaska Subduction Processes emphasizing the Kurile-Kamchatka-Aleutian Arcs
Place of Presentation
Fairbanks, Alaska
Related Report
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[Presentation] Recent activity of Anatahan volcano, Northern Marina Islands, and its magma plumbing system2009
Author(s)
Nakada, S., Y. Morita, T. Matsushima, T. Tabei, A. Watanabe, F. Maeno, J. Camacho
Organizer
2009 AGU Fall Meeting
Place of Presentation
San Francisco, USA
Related Report
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[Presentation] Geodetic Constraints for Back-Arc Spreading Across the Mariana Trough, G21A-06822008
Author(s)
Tabei, T., T. Watanabe, T. Matsu-shima, T. Kato, S. Nakada, F. Maeno, A. Watanabe, J. Camacho, J. Kaipat, Y. Morita
Organizer
2008 AGU Fall Meeting
Place of Presentation
San Francisco, USA
Related Report
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