Preparatory process preceding the 2014 eruption of Mount Ontake volcano, Japan : insights from precise leveling measurements

• 資料種別: 記事
• タイトル: Preparatory process preceding the 2014 eruption of Mount Ontake volcano, Japan : insights from precise leveling measurements
• 著者・編者: Masayuki Murase; Fumiaki Kimata; Yoshiko Yamanaka
• 出版事項: 日本 : Springer science+business media
• 出版年月日等: 2016-01-22
• 出版年（W3CDTF）: 2016-01-22
• タイトル（掲載誌）: EPS : Earth, Planets and Space
• 巻号年月日等（掲載誌）: 68(9)
• 掲載巻: 68(9)
• ISSN（掲載誌）: 1880-5981
• ISSN-L（掲載誌）: 1343-8832
• 本文の言語コード: eng
• DOI: 10.1186/s40623-016-0386-4; https://doi.org/10.1186/s40623-016-0386-4
• 国立国会図書館永続的識別子: info:ndljp/pid/9963608; https://dl.ndl.go.jp/pid/9963608
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• 受理日（W3CDTF）: 2016-04-22T20:37:43+09:00
• 保存日（W3CDTF）: 2016-02-20
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• 掲載誌（URI）: https://www.earth-planets-space.com/content/68/January/2016
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• 連携機関・データベース: 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

• コレクション（個別）: 国立国会図書館デジタルコレクション > デジタル化資料 > 雑誌; https://dl.ndl.go.jp/collections/A00002
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• 請求記号: Z19-551
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• 連携機関・データベース: 国立国会図書館 : 国立国会図書館雑誌記事索引; https://ndlsearch.ndl.go.jp
• 書誌ID（NDLBibID）: 9963608; http://id.ndl.go.jp/bib/9963608
• 整理区分コード: 632

• 要約等: Preparatory activity preceding the 2014 eruption of Mount Ontake volcano was estimated from vertical deformation detected using a precise leveling survey. Notable uplift (2006-2009) and subsidence (2009-2014) were detected on the eastern flank of the volcano. We estimated pressure source models based on the vertical deformation and used these to infer preparatory process preceding the 2014 eruption. Our results suggest that the subsidence experienced between 2009 and 2014 (including the period of the 2014 eruption) occurred as a result of a sill-like tensile crack with a depth of 2.5 km. This tensile crack might inflate prior to the eruption and deflate during the 2014 activity. A two-tensile-crack model was used to explain uplift from 2006 to 2009. The geometry of the shallow crack was assumed to be the same as the sill-like tensile crack. The deep crack was estimated to be 2 km in length, 4.5 km in width, and 3 km in depth. Distinct uplifts began on the volcano flanks in 2006 and were followed by seismic activities and a small phreatic eruption in 2007. From the partially surveyed leveling data in August 2013, uplift might continue until August 2013 without seismic activity in the summit area. Based on the uplift from 2006 to 2013, magma ascended rapidly beneath the summit area in December 2006, and deep and shallow tensile cracks were expanded between 2006 and 2013. The presence of expanded cracks between 2007 and 2013 has not been inferred by previous studies. A phreatic eruption occurred on 27 September 2014, and, following this activity, the shallow crack may have deflated.
• DOI: 10.1186/s40623-016-0386-4; https://doi.org/10.1186/s40623-016-0386-4
• オンライン閲覧公開範囲: インターネット公開
• 著作権情報: © 2016 Murase et al. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
• 関連情報（URI）: http://hdl.handle.net/2433/212441; http://id.ndl.go.jp/digimeta/9963608; https://dl.ndl.go.jp/pid/9963608; http://link.springer.com/content/pdf/10.1186/s40623-016-0386-4.pdf; http://link.springer.com/article/10.1186/s40623-016-0386-4/fulltext.html; http://link.springer.com/content/pdf/10.1186/s40623-016-0386-4
• 参照: Seismic structure and its implication on the hydrothermal system beneath Mt. Ontake, central Japan; https://cir.nii.ac.jp/crid/1360584339757747456; A numerical model for precursory time sequences of the phreatic eruptions of Mt. Ontake, central Japan; https://cir.nii.ac.jp/crid/1360865815677732864; Five-Year Achievements of Volcano Program Promotion Panel; https://cir.nii.ac.jp/crid/1390002184884448768; 箱根火山のマグマ・熱水系モデル; https://cir.nii.ac.jp/crid/1390290879752806016; Vertical ground deformation related to the 2014 and 2015 eruptions at Kuchierabujima Volcano, Japan detected by repeated precise leveling surveys; https://cir.nii.ac.jp/crid/1390845713052831872; Quantitative relationship between plume emission and multiple deflations after the 2014 phreatic eruption at Ontake volcano, Japan; https://cir.nii.ac.jp/crid/2050307417117557248; Chronology of the 2015 eruption of Hakone volcano, Japan : geological background, mechanism of volcanic unrest and disaster mitigation measures during the crisis; https://cir.nii.ac.jp/crid/2050588892082785792; Volcanic unrest at Hakone volcano after the 2015 phreatic eruption : reactivation of a ruptured hydrothermal system?; https://cir.nii.ac.jp/crid/2050870367078669568
• 参照: New version of the generic mapping tools; https://cir.nii.ac.jp/crid/1360292620975562368; Surface deformation due to shear and tensile faults in a half-space; https://cir.nii.ac.jp/crid/1360292621388170624; Contemporary vertical surface displacements in Yellowstone National Park; https://cir.nii.ac.jp/crid/1360574093993468160; Geodetic leveling and its applications; https://cir.nii.ac.jp/crid/1360574094440412672; Time dependent modeling of magma intrusion during the early stage of the 2000 Miyakejima activity; https://cir.nii.ac.jp/crid/1360574094447108736; Helium-3 Emission Related to Volcanic Activity; https://cir.nii.ac.jp/crid/1360855571326358656; The 1989 Loma Prieta earthquake imaged from inversion of geodetic data; https://cir.nii.ac.jp/crid/1361137044874957440; Time-dependent model for volume changes in pressure sources at Asama volcano, central Japan due to vertical deformations detected by precise leveling during 1902–2005; https://cir.nii.ac.jp/crid/1361699994140513792; KAr age determination of late Quaternary volcanic rocks using the “mass fractionation correction procedure”: application to the Younger Ontake Volcano, central Japan; https://cir.nii.ac.jp/crid/1361699994560699520; Volcano-hydrothermal activity detected by precise levelling surveys at the Tatun volcano group in Northern Taiwan during 2006–2013; https://cir.nii.ac.jp/crid/1362544419150125056; Magma plumbing system beneath Ontake Volcano, central Japan; https://cir.nii.ac.jp/crid/1362544419519606912; Source mechanism of a very-long-period event at Mt Ontake, central Japan: Response of a hydrothermal system to magma intrusion beneath the summit; https://cir.nii.ac.jp/crid/1362544420469833856; Evidence for fluid migration as the source of deformation at Campi Flegrei caldera (Italy); https://cir.nii.ac.jp/crid/1364233270149841792; 御嶽火山2014 年9 月27 日噴火で発生した火砕流; https://cir.nii.ac.jp/crid/1390282680170822784; Ground uplift detected by precise leveling in the Ontake earthquake swarm area, central Japan in 2002-2004; https://cir.nii.ac.jp/crid/1390282681489227648; Preparatory and precursory processes leading up to the 2014 phreatic eruption of Mount Ontake, Japan; https://cir.nii.ac.jp/crid/2050870367119613824
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: 学術機関リポジトリデータベース; https://irdb.nii.ac.jp; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp; Crossref; https://www.crossref.org; CiNii Articles; 科学研究費助成事業データベース; https://kaken.nii.ac.jp/ja
• 書誌ID（NDLBibID）: 9963608; http://id.ndl.go.jp/bib/9963608
• NII論文ID: 120005758193