Complex microseismic activity and depth-dependent stress field changes in Wakayama, southwestern Japan

• 資料種別: 記事
• タイトル: Complex microseismic activity and depth-dependent stress field changes in Wakayama, southwestern Japan
• 著者・編者: Sumire Maeda; Toru Matsuzawa; Shinji Toda
• 出版事項: 日本 : Springer Nature
• 出版年月日等: 2018-02-07
• 出版年（W3CDTF）: 2018-02-07
• タイトル（掲載誌）: EPS : Earth, Planets and Space
• 巻号年月日等（掲載誌）: 70(21)
• 掲載巻: 70(21)
• 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/s40623-018-0788-6; https://doi.org/10.1186/s40623-018-0788-6
• 国立国会図書館永続的識別子: info:ndljp/pid/11067477; https://dl.ndl.go.jp/pid/11067477
• コレクション（共通）: 障害者向け資料
• コレクション（障害者向け資料：レベル1）: テキストデータ
• 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 > 電子書籍・電子雑誌 > その他; https://dl.ndl.go.jp/collections/B00035
• 収集根拠: オンライン資料収集制度
• 受理日（W3CDTF）: 2018-04-12T16:47:48+09:00
• 保存日（W3CDTF）: 2018-04-12
• 記録形式（IMT）: application/pdf
• オンライン閲覧公開範囲: 国立国会図書館内限定公開
• デジタル化資料送信: 図書館・個人送信対象外
• 遠隔複写可否（NDL）: 可
• 掲載誌（URI）: https://earth-planets-space.springeropen.com/articles
• 掲載誌（国立国会図書館永続的識別子）: info:ndljp/pid/11067456; https://dl.ndl.go.jp/pid/11067456
• 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

• 要約等: We examined the spatial relationship between seismicity and upper crustal structure in the Wakayama region, northwestern Kii Peninsula, Japan, by investigating microearthquake focal mechanisms and the local stress field. The focal mechanisms of most events studied fall into three categories: (1) normal faulting with N–S-oriented T-axes mainly occurring at shallow depths, (2) reverse faulting with E–W-oriented P-axes dominating at intermediate depths, and (3) strike-slip faulting with N–S-oriented T-axes and E–W-oriented P-axes mainly seen at greater depths. The stress field varies with depth: the shallow part is characterized by a strike-slip-type stress regime with N–S tension and E–W compression, while the deep part is characterized by an E–W compressional stress regime consistent with reverse faulting. The depth-dependent stress regime can be explained by thermal stress caused by a heat source, as expected from geophysical observations. Geologic faults, acting as weak planes, might contribute to generate shallow normal fault-type and deeper strike-slip fault-type microearthquakes.
• DOI: 10.1186/s40623-018-0788-6; https://doi.org/10.1186/s40623-018-0788-6
• 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: © 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.
• 関連情報: MOESM1 of Complex microseismic activity and depth-dependent stress field changes in Wakayama, southwestern Japan; https://cir.nii.ac.jp/crid/1872279343545492864
• 関連情報（URI）: http://hdl.handle.net/2433/234227; http://hdl.handle.net/10097/00130636; https://tohoku.repo.nii.ac.jp/records/133246; http://id.ndl.go.jp/digimeta/11067477; https://dl.ndl.go.jp/pid/11067477; http://link.springer.com/article/10.1186/s40623-018-0788-6/fulltext.html; http://link.springer.com/content/pdf/10.1186/s40623-018-0788-6.pdf
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• 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/
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• NII論文ID: 120006517788; 120006989892