Resistivity characterisation of Hakone volcano, Central Japan, by three-dimensional magnetotelluric inversion
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- Material Type
- 記事
- Author/Editor
- Ryokei YoshimuraYasuo OgawaYohei Yukutake
- Publication, Distribution, etc.
- Publication Date
- 2018-04-26
- Publication Date (W3CDTF)
- 2018-04-26
- Periodical title
- EPS : Earth, Planets and Space
- No. or year of volume/issue
- 70(66)
- Volume
- 70(66)
- ISSN (Periodical Title)
- 1880-5981
- ISSN-L (Periodical Title)
- 1343-8832
- Text Language Code
- eng
- DOI
- 10.1186/s40623-018-0848-y
- Persistent ID (NDL)
- info:ndljp/pid/11125833
- Collection
- Collection (Materials For Handicapped People:1)
- Collection (particular)
- 国立国会図書館デジタルコレクション > 電子書籍・電子雑誌 > その他
- Acquisition Basis
- オンライン資料収集制度
- Date Accepted (W3CDTF)
- 2018-08-10T20:26:03+09:00
- Date Captured (W3CDTF)
- 2018-08-10
- Format (IMT)
- application/pdf
- Access Restrictions
- 国立国会図書館内限定公開
- Service for the Digitized Contents Transmission Service
- 図書館・個人送信対象外
- Availability of remote photoduplication service
- 可
- Periodical Title (URI)
- Periodical Title (Persistent ID (NDL))
- info:ndljp/pid/11067456
- Data Provider (Database)
- 国立国会図書館 : 国立国会図書館デジタルコレクション
- Summary, etc.
- On 29 June 2015, a small phreatic eruption occurred at Hakone volcano, Central Japan, forming several vents in the Owakudani geothermal area on the northern slope of the central cones. Intense earthquake swarm activity and geodetic signals corresponding to the 2015 eruption were also observed within the Hakone caldera. To complement these observations and to characterise the shallow resistivity structure of Hakone caldera, we carried out a three-dimensional inversion of magnetotelluric measurement data acquired at 64 sites across the region. We utilised an unstructured tetrahedral mesh for the inversion code of the edge-based finite element method to account for the steep topography of the region during the inversion process. The main features of the best-fit three-dimensional model are a bell-shaped conductor, the bottom of which shows good agreement with the upper limit of seismicity, beneath the central cones and the Owakudani geothermal area, and several buried bowl-shaped conductive zones beneath the Gora and Kojiri areas. We infer that the main bell-shaped conductor represents a hydrothermally altered zone that acts as a cap or seal to resist the upwelling of volcanic fluids. Enhanced volcanic activity may cause volcanic fluids to pass through the resistive body surrounded by the altered zone and thus promote brittle failure within the resistive body. The overlapping locations of the bowl-shaped conductors, the buried caldera structures and the presence of sodium-chloride-rich hot springs indicate that the conductors represent porous media saturated by high-salinity hot spring waters. The linear clusters of earthquake swarms beneath the Kojiri area may indicate several weak zones that formed due to these structural contrasts.
- DOI
- 10.1186/s40623-018-0848-y
- Access Restrictions
- インターネット公開
- Rights (production)
- © The Author(s) 2018. 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.
- Related Material (URI)
- Is Referenced By
- Estimation of spatial distribution and fluid fraction of a potential supercritical geothermal reservoir by magnetotelluric data: a case study from Yuzawa geothermal field, NE JapanHydrothermal and Magmatic System of a Volcanic Island Inferred From Magnetotellurics, Seismicity, Self‐potential, and Thermal Image: An Example of Miyakejima (Japan)Imaging the Source Region of the 2015 Phreatic Eruption at Owakudani, Hakone Volcano, Japan, Using High‐Density Audio‐Frequency MagnetotelluricsObserving Posteruptive Deflation of Hydrothermal System Using InSAR Time Series Analysis: An Application of ALOS‐2/PALSAR‐2 Data on the 2015 Phreatic Eruption of Hakone Volcano, JapanThree‐Dimensional Seismic Attenuation Structure of Central Japan and Deep Sources of Arc MagmatismSignificance of Electromagnetic Surveys at Active Volcanoes: Toward Evaluating the Imminence of Wet Eruptions水蒸気噴火の発生場と噴火過程の観測Simple Graphical Pre- and Post-Processor for 3-D Magnetotelluric Inversion箱根火山のマグマ・熱水系モデル地表面変位から推定される箱根火山浅部熱水系の構造2015年5月芦ノ湖北岸の群発地震活動Subsurface Resistivity Imaging of Nasudake (Chausudake) Volcano Determined from Time Domain Electromagnetic Survey (TDEM)The Seismic Activity of the Nasudake Volcano Using Hypocenter Data (1998–2022) from the National Research Institute for Earth Science and Disaster ResilienceHydrothermal system of the active crater of Aso volcano (Japan) inferred from a three-dimensional resistivity structure modelAnatomy of active volcanic edifice at the Kusatsu–Shirane volcano, Japan, by magnetotellurics : hydrothermal implications for volcanic unrestsVolcanic unrest at Hakone volcano after the 2015 phreatic eruption : reactivation of a ruptured hydrothermal system?
- References
- Remotely triggered seismic activity in Hakone volcano during and after the passage of surface waves from the 2011 M9.0 Tohoku-Oki earthquakeResistivity structure and geochemistry of the Jigokudani Valley hydrothermal system, Mt. Tateyama, Japan3-D inversion of magnetotelluric data using unstructured tetrahedral elements: applicability to data affected by topographySensitivity studies applied to a two-dimensional resistivity model from the Central AndesNew, improved version of generic mapping tools releasedA numerical evaluation of electromagnetic methods in geothermal explorationA magma‐hydrothermal system beneath Hakone volcano, central Japan, revealed by highly resolved velocity structuresTetGen, a Delaunay-Based Quality Tetrahedral Mesh GeneratorFluid-induced swarm earthquake sequence revealed by precisely determined hypocenters and focal mechanisms in the 2009 activity at Hakone volcano, JapanFine fracture structures in the geothermal region of Hakone volcano, revealed by well-resolved earthquake hypocenters and focal mechanismsThree-dimensional resistivity structure of Asama Volcano revealed by data-space magnetotelluric inversion using unstructured tetrahedral elementsA large hydrothermal reservoir beneath Taal Volcano (Philippines) revealed by magnetotelluric resistivity survey: 2D resistivity modelingA preparation zone for volcanic explosions beneath Naka-dake crater, Aso volcano, as inferred from magnetotelluric surveysThree-dimensional inversion of magnetotelluric impedance tensor data and full distortion matrixAnalysis of rotational invariants of the magnetotelluric impedance tensorMagnetotellurics with a remote magnetic referenceResistivity characterization of the Krafla and Hengill geothermal fields through 3D MT inverse modelingThree‐dimensional joint inversion for magnetotelluric resistivity and static shift distributions in complex mediaCoseismic changes in the chemical composition of volcanic gases from the Owakudani geothermal area on Hakone volcano, JapanTwo electrical conductors beneath Kusatsu-Shirane volcano, Japan, imaged by audiomagnetotellurics, and their implications for the hydrothermal system箱根火山群，強羅付近の後カルデラ地質発達史Imaging the hydrothermal system beneath the Jigokudani valley, Tateyama volcano, Japan : implications for structures controlling repeated phreatic eruptions from an audio-frequency magnetotelluric surveyTwo-dimensional resistivity structure of Unzen Volcano revealed by AMT and MT surveysAnalyzing the continuous volcanic tremors detected during the 2015 phreatic eruption of the Hakone volcano
- Data Provider (Database)
- 国立情報学研究所 : CiNii Research
- Original Data Provider (Database)
- 学術機関リポジトリデータベース学術機関リポジトリデータベース雑誌記事索引データベースCrossrefCiNii ArticlesCiNii Articles科学研究費助成事業データベース科学研究費助成事業データベースCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossrefCrossref
- Bibliographic ID (NDL)
- 11125833
- NAID
- 120006582682120006510282