| タイトル |
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en
Significance of Electromagnetic Surveys at Active Volcanoes : Toward Evaluating the Imminence of Wet Eruptions
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| 作成者 |
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| アクセス権 |
open access |
| 主題 |
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Other
en
Kuttara volcano
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Other
en
magnetotellurics
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Other
en
wet eruptions
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Other
en
unrest phenomena
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NDC
453
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| 内容注記 |
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Abstract
en
The detection capability of various anomalous phenomena preceding volcanic eruptions has considerably progressed as the geophysical monitoring networks have become denser and multi-disciplinary. However, current eruption forecasting techniques, from a practical perspective, still have much scope for improvement because they largely depend on empirical techniques. In the past decade, three-dimensional modeling based on the electromagnetic sounding methods such as magnetotellurics (MT) have become a practical choice, and its recent applications to active volcanic fields has revealed certain common features among volcanoes. Information about the resistivity structure, especially in ‘wet’ volcanic fields, is useful for the provisional screening of the eruption potential from the viewpoint of the subsurface structure, and, thus, may contribute to the evaluation of eruption imminence in a broad sense. In this study, for evaluation purposes, we present the roles and possible further applications of the subsurface resistivity structure studies by demonstrating the preliminary results and interpretations of an MT survey that we performed in the Kuttara Volcanic Group, northern Japan.
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| 出版者 |
en
Fuji Technology Press
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| 日付 |
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| 言語 |
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| 資源タイプ |
journal article |
| 出版タイプ |
AM |
| 資源識別子 |
HDL
http://hdl.handle.net/2115/74568
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| 関連 |
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isVersionOf
DOI
https://doi.org/10.20965/jdr.2019.p0580
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| 収録誌情報 |
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PISSN
1881-2473
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EISSN
1883-8030
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en
Journal of Disaster Research
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巻14
号4
開始ページ580
終了ページ591
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| ファイル |
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| コンテンツ更新日時 |
2023-11-25 |
