Researcher Information
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Research History
Research activity information
Papers
- Toshiya Fujiwara; Kentaro Imai; Masayuki Obayashi; Kenta Yoshida; Noriko Tada; Koichiro Obana; Gou Fujie; Shigeaki Ono; Shuichi Kodaira
The Sofu Seamount Submarine Volcano Present in the Source Area of the October 2023 Earthquakes and Tsunamis in Japan
Geophysical Research Letters, 16 Oct. 2024 - Siri Catherine Vassvåg; Kuvvet Atakan; Martha Økland Lien; Shuichi Kodaira; Toshiya Fujiwara
Modelling temporal changes in the gravity field in the Nankai Trough subduction zone, Japan
24 Sep. 2021 - Toshiya Fujiwara
Seafloor Geodesy From Repeated Multibeam Bathymetric Surveys: Application to Seafloor Displacement Caused by the 2011 Tohoku-Oki Earthquake
FRONTIERS IN EARTH SCIENCE, May 2021
9 - Yasuyuki Nakamura; Toshiya Fujiwara; Shuichi Kodaira; Seiichi Miura; Koichiro Obana
Correlation of frontal prism structures and slope failures near the trench axis with shallow megathrust slip at the Japan Trench
SCIENTIFIC REPORTS, Jul. 2020
10, 1 - Shuichi Kodaira; Toshiya Fujiwara; Gou Fujie; Yasuyuki Nakamura; Toshiya Kanamatsu
Large Coseismic Slip to the Trench During the 2011 Tohoku-Oki Earthquake
ANNUAL REVIEW OF EARTH AND PLANETARY SCIENCES, VOL 48, 2020, 2020
48, 321, 343 - M. Landrø; S. Kodaira; T. Fujiwara; T. No; W. Weibull; B. Arntsen
Time lapse seismic analysis of the Tohoku-Oki 2011 earthquake
International Journal of Greenhouse Gas Control, Mar. 2019
82, 98, 116 - Fujiwara Toshiya; Kanamatsu Toshiya; Kasaya Takafumi
Bathymetric, Subsurface, and Gravity Survey off the Sada-misaki Peninsula, the Seto Inland Sea
JAMSTEC Report of Research and Development, 01 Sep. 2018
27, 13, 25 - Akane Ohira; Shuichi Kodaira; Gregory F. Moore; Mikiya Yamashita; Toshiya Fujiwara; Yuka Kaiho; Seiichi Miura; Gou Fujie
Active-source seismic survey on the northeastern Hawaiian Arch: insights into crustal structure and mantle reflectors
EARTH PLANETS AND SPACE, Jul. 2018
70 - Kelin Wang; Tianhaozhe Sun; Lonn Brown; Ryota Hino; Fumiaki Tomita; Motoyuki Kido; Takeshi Iinuma; Shuichi Kodaira; Toshiya Fujiwara
Learning from crustal deformation associated with the M9 2011 Tohoku-oki earthquake
GEOSPHERE, Apr. 2018
14, 2, 552, 571 - Toshiya Fujiwara; Christian dos Santos Ferreira; Anna Katharina Bachmann; Michael Strasser; Gerold Wefer; Tianhaozhe Sun; Toshiya Kanamatsu; Shuichi Kodaira
Seafloor Displacement After the 2011 Tohoku‐oki Earthquake in the Northern Japan Trench Examined by Repeated Bathymetric Surveys
Geophysical Research Letters, 16 Dec. 2017
44, 23, 11,833, 11,839 - Tianhaozhe Sun; Kelin Wang; Toshiya Fujiwara; Shuichi Kodaira; Jiangheng He
Large fault slip peaking at trench in the 2011 Tohoku-oki earthquake
NATURE COMMUNICATIONS, Jan. 2017
8 - Yoshihiko Tamura; Takeshi Sato; Toshiya Fujiwara; Shuichi Kodaira; Alexander Nichols
Advent of Continents: A New Hypothesis
SCIENTIFIC REPORTS, Sep. 2016
6 - Toshiya Fujiwara; Yuka Masaki; Fujio Yamamoto
Evaluation of spatial resolution and estimation error of seafloor displacement observation from vessel-based bathymetric survey by use of AUV-based bathymetric data
MARINE GEOPHYSICAL RESEARCH, Mar. 2015
36, 1, 45, 60 - Hiroaki Koge; Toshiya Fujiwara; Shuichi Kodaira; Tomoyuki Sasaki; Jun Kameda; Yujin Kitamura; Mari Hamahashi; Rina Fukuchi; Asuka Yamaguchi; Yohei Hamada; Juichiro Ashi; Gaku Kimura
Friction properties of the plate boundary megathrust beneath the frontal wedge near the Japan Trench: an inference from topographic variation
EARTH PLANETS AND SPACE, Nov. 2014
66 - Hiske G. Fink; Michael Strasser; Miriam Roemer; Martin Koelling; Ken Ikehara; Toshiya Kanamatsu; Dominik Dinten; Arata Kioka; Toshiya Fujiwara; Kiichiro Kawamura; Shuichi Kodaira; Gerold Wefer
Evidence for Mass Transport Deposits at the IODP JFAST-Site in the Japan Trench
SUBMARINE MASS MOVEMENTS AND THEIR CONSEQUENCES: 6TH INTERNATIONAL SYMPOSIUM, 2014
37, 33, 43 - Ayanori Misawa; Kenji Hirata; Leonard Seeber; Kohsaku Arai; Yasuyuki Nakamura; Riza Rahardiawan; Udrekh; Toshiya Fujiwara; Masataka Kinoshita; Hisatoshi Baba; Katsura Kameo; Keita Adachi; Hiroshi Sarukawa; Hidekazu Tokuyama; Haryadi Permana; Yusuf S. Djajadihardja; Juichiro Ashi
Geological structure of the offshore Sumatra forearc region estimated from high-resolution MCS reflection survey
EARTH AND PLANETARY SCIENCE LETTERS, Jan. 2014
386, 41, 51 - M. Strasser; M. Koelling; C. dos Santos Ferreira; H. G. Fink; T. Fujiwara; S. Henkel; K. Ikehara; T. Kanamatsu; K. Kawamura; S. Kodaira; M. Roemer; G. Wefer
A slump in the trench: Tracking the impact of the 2011 Tohoku-Oki earthquake
GEOLOGY, Aug. 2013
41, 8, 935, 938 - Abe, N; Fujiwara, T; Kimura, R; Mori, A; Ohyama, R; Okumura, S; Tokunaga, W
Trans-Pacific Bathymetry Survey crossing over the Pacific, Antarctic, and Nazca plates
JAMSTEC Report of Research and Development, 2013
17, 43, 57
[Reviewed] - 小平秀一; 富士原敏也; 中村武史
Co-seismic displacement of the 2011 Tohoku-oki Earthquake reaching to the trench axis detected by differential bathymetry survey
地質学雑誌, 15 Sep. 2012
118, 9, 530, 534 - Shuichi Kodaira; Tetsuo No; Yasuyuki Nakamura; Toshiya Fujiwara; Yuka Kaiho; Seiichi Miura; Narumi Takahashi; Yoshiyuki Kaneda; Asahiko Taira
Coseismic fault rupture at the trench axis during the 2011 Tohoku-oki earthquake
NATURE GEOSCIENCE, Sep. 2012
5, 9, 646, 650 - Toshiya Fujiwara; Shuichi Kodaira; Tetsuo No; Yuka Kaiho; Narumi Takahashi; Yoshiyuki Kaneda
The 2011 Tohoku-Oki Earthquake: Displacement Reaching the Trench Axis
SCIENCE, Dec. 2011
334, 6060, 1240, 1240 - Shuichi Kodaira; Toshiya Fujiwara; Naoto Noguchi; Narumi Takahashi
Structural variation of the Bonin ridge revealed by modeling of seismic and gravity data
EARTH PLANETS AND SPACE, 2011
63, 9, 963, 973 - Kyoko Okino; Yasuhiko Ohara; Toshiya Fujiwara; Sang-Mook Lee; Kin'ichiro Koizumi; Yasuyuki Nakamura; Shiguo Wu
Tectonics of the southern tip of the Parece Vela Basin, Philippine Sea Plate
TECTONOPHYSICS, Mar. 2009
466, 3-4, 213, 228 - Yoshio Fukao; Shuichi Kodaira; Masataka Kinoshita; Yoshiyuki Tatsumi; Naohiko Ohkochi; Katsuhiko Suzuki; Daisuke Suetsugu; Takeshi Hanyu; Hiroko Sugioka; Shigeaki Ono; Kei Hirose; Takatoshi Yanagisawa; Yozo Hamano; Toshiya Fujiwara; Hiroshi Kitazato; Narumi Takahashi; Hide Sakaguchi
Review of five years of activity at IFREE /JAMSTEC
JAMSTEC Report of Research and Development, 2009
9, 2, 43, 94
[Reviewed] - Toshiya Fujiwara; Yukari Kido; Yoshihiko Tamura; Osamu Ishizuka
Gravity and magnetic constraints on the crustal structure and evolution of the Horeki seamount in the Izu-Ogasawara (Bonin) arc
EARTH PLANETS AND SPACE, 2009
61, 3, 333, 343 - Naoto Hirano; Anthony A. P. Koppers; Ayu Takahashi; Toshiya Fujiwara; Masao Nakanishi
Seamounts, knolls and petit-spot monogenetic volcanoes on the subducting Pacific Plate
BASIN RESEARCH, Dec. 2008
20, 4, 543, 553 - Fujiwara Toshiya; Umino Susumu; Asada Miho; Koike Yuki; Kanamatsu Toshiya; Kimoto Katsunori; Okada Satoshi
A submersible study of the Mariana Trough back-arc spreading center at 17°N
JAMSTEC Rep. Res. Dev., 2008
8, 61-73, 61, 73 - Leonardo Seeber; Christian Mueller; Toshiya Fujiwara; Kohsaku Arai; Wonn Soh; Yusuf S. Djajadihardja; Marie-Helene Cormier
Accretion, mass wasting, and partitioned strain over the 26 Dec 2004 Mw9.2 rupture offshore Aceh, northern Sumatra
EARTH AND PLANETARY SCIENCE LETTERS, Nov. 2007
263, 1-2, 16, 31 - Toshiya Fujiwara; Naoto Hirano; Natsue Abe; Kaoru Takizawa
Subsurface structure of the "petit-spot'' volcanoes on the northwestern Pacific Plate
GEOPHYSICAL RESEARCH LETTERS, Jul. 2007
34, 13 - Miho Asada; Anne Deschamps; Toshiya Fujiwara; Yasuyuki Nakamura
Submarine lava flow emplacement and faulting in the axial valley of two morphologically distinct spreading segments of the Mariana back-arc basin from Wadatsumi side-scan sonar images
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, Apr. 2007
8 - Fujiwara Toshiya; Ishizuka Osamu; Tamura Yoshihiko; Geshi Nobuo; Shaw Alison; O'Leary Julie; Tanaka Hitoshi; Minamizawa Satomi
Magnetic and Bathymetric Survey of the Suiyo Cross-Chain, Izu-Bonin Arc
JAMSTEC Report of Research and Development, 2007
6, 0, 31, 38 - Anne Deschamps; Toshiya Fujiwara; Miho Asada; Laurent Montési; Pascal Gente
Faulting and volcanism in the axial valley of the slowspreading center of the Mariana back arc basin from Wadatsumi side-scan sonar images
Geochemistry, Geophysics, Geosystems, May 2005
6, 5 - Soh W.; Djajadihardja Y.S.; Machiyama H.; Fujiwara T.; Hirata K.; Araki E.; Watanabe K.; Arai K.; Suyehiro K.; Kinoshita M.; Ashi J.
Direct Observation of deep seafloor distrurbance caused by the Sumatra Andaman Earthquake, 2004
Annual Meeting of the Geological Society of Japan, 2005
2005, 5, 5 - Anne Deschamps; Toshiya Fujiwara
Asymmetric accretion along the slow-spreading Mariana Ridge
Geochemistry, Geophysics, Geosystems, Oct. 2003
4, 10
Misc.
- Sakamoto Izumi; Ishizuka Osamu; Fujiwara Toshiya; Kim Yun-Ui
O-39 Topographical and geo-structural development of Sofugan Tectonic Line, Izu-Ogasawara Arc.
Annual Meeting of the Geological Society of Japan, 2004
2004, 0, 45, 45 - SAKAMOTO Izumi; FUJIWARA Toshiya; ISHIZUKA Osamu
Geology and tectonics of Sofugan Tectonic Line, Izu-Ogasawara Arc
PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN, 2000
2000, 0, 67, 67
Presentations
- 金松敏也; Kan-Hsi Hsiung; 窪田薫; Yu-Chun Chang; 富士原敏也; 池原研; 中西諒; 池田尚史; 山本裕二; 上西諒; 与謝野勳; 浦本豪一郎; 永澤綾子; 金子幸司朗; 壽隆海大; 石澤尭史; Yang Zhao・Jyh-Jaan; Steven Huang・Yen-Hsi Wu; Yao-Ming Liu
海底堆積物を使った千島海溝沿いの地震記録復元：地震発生帯で採取された海底堆積物の概要
海と地球のシンポジウム, 13 Mar. 2025 - 高下裕章; 富士原敏也; 木戸元之; 亀尾桂; 田村千織; 三澤文慶; 鈴木克明; 本荘千枝; 森口堯明; 日野亮太; 鈴木秀市; 佐藤真樹子; 西村建; 後藤博文; 黒須直樹; 森尚仁; 金子純二; 古山精史郎; 唐澤卓朗; 中尾眞子; 片山陽平
日本海溝の広域地殻変動の検出に向けた海底地形観測の基準点作成 - 白鳳丸KH-22-10航海結果(速報) –
海と地球のシンポジウム, 12 Mar. 2025 - 仲西理子; Qin Yanfang・Liu Xin; 縣亮一郎; 富士原敏也; 藤江剛; 汐見勝彦; 小平秀一; 高橋成実; 中村武史
南海トラフ域の海陸統合３次元マルチパラメータ地下構造の構築と検証
日本地震学会秋季大会, 21 Oct. 2024 - Obana, Koichiro; Aki Ito; Tomoya Nakajima; Toshiya Fujiwara; Masayuki Obayashi; Satoru Tanaka; Kenta Yoshida; Noriko Tada; Kentaro Imai; Yasuyuki Nakamura; Gou Fujie; Shigeaki Ono; Shuichi Kodaira
Earthquake activities near the Sofu seamount with possible relations to tsunamis observed in October 2023
日本地球惑星科学連合大会, 31 May 2024 - 富士原敏也; 今井健太郎; 大林政行; 吉田健太; 多田訓子; 尾鼻浩一郎; 藤江剛; 小野重明; 小平秀一
2023年10月9日地震津波の波源域にある孀婦海山
日本地球惑星科学連合大会, 31 May 2024, [Invited] - 金松敏也; Hsiung Kan-Hsi; 中西諒; 窪田薫; 池原研・Chang Yu-Chun; 富士原敏也
17世紀に北海道沖で起こった巨大地震の海底堆積物中の記録：千島海溝沿いの海底古地震記録
日本地球惑星科学連合大会, 29 May 2024 - Nakanishi, Ayako; Yanfang Qin; Xin Liu; Gou Fujie; Katsuhiko Shiomi; Shuichi Kodaira; Narumi Takahashi; Takeshi Nakamura; Toshiya Fujiwara
Constructing a 3D multi-parameter model of the Nankai Trough
日本地球惑星科学連合大会, 28 May 2024 - 富士原敏也; 西田周平; 小平秀一; VASSVAG Siri Catherine; HAGESAETER Arve; ASGARD Kjetil; WAGEN Geir Clement; LIEN Martha Okland
熊野灘沖南海トラフにおける高精度海底重力・水圧観測
海と地球のシンポジウム発表課題一覧・要旨集(CD-ROM), 2024 - 三澤文慶; 高下裕章; 冨士原敏也; 荒井晃作
Crustal movements in the upper plate offshore Tohoku region to be elucidated from shallow subbottom structures
日本地質学会学術大会(Web), 2022 - 三澤文慶; 高下裕章; 冨士原敏也; 鈴木克明; 佐藤悠介; 田村千織; 亀尾桂; 小松亮介; 荒井晃作
最表層部構造から紐解く東北沖上盤プレートの変動-白鳳丸KH-20-10航海報告-
海と地球のシンポジウム発表課題一覧・要旨集(CD-ROM), 2021 - 高下裕章; 三澤文慶; 富士原敏也; 鈴木克明; 佐藤悠介; 小松亮介; 田村千織; 亀尾桂
Deformation of the upper plate within the Tohoku Region Pacific Coast analyzed by the top surface structure
日本地球惑星科学連合大会予稿集(Web), 2021 - 今井健太郎; 中村恭之; 富士原敏也; 谷岡勇市郎
A Preliminary Examination on Characteristics of Submarine Landslide Tsunami along the Nankai Trough
日本地震学会秋季大会講演予稿集(CD-ROM), 2021 - 野徹雄; 佐藤壮; 富士原敏也; 三浦亮; 小平秀一; 中東和夫; LEE Kwangho; 大財綾子; 下村典生
Geometry of the Moho and three-dimensional P-wave velocity structure model in the Japan Sea based on active-source seismic survey data
日本地球惑星科学連合大会予稿集(Web), 2021 - 小平秀一; 中村恭之; 藤江剛; 富士原敏也; 尾鼻浩一郎; 山本揚二朗; 野徹雄; 海宝由佳; 佐藤壮; 三浦誠一
海域探査から見た2011年東北地方太平洋沖地震
日本地震学会秋季大会講演予稿集(CD-ROM), 2018 - 富士原敏也; 小平秀一; 藤江剛; 海宝由佳; 金松敏也; 笠谷貴史; 中村恭之; 野徹雄; 佐藤壮; 高橋努; 高橋成実; 高橋成実; 金田義行; 金田義行; BACHMANN A.K.; DOS SANTOS FERREIRA C.; WEFER G.; STRASSER M.; SUN T.
2011年東北地方太平洋沖地震前後の海底地形変動分布
日本地震学会秋季大会講演予稿集(CD-ROM), 2018 - 富士原敏也; 小平秀一; DOS SANTOS FERREIRA Christian; 藤江剛; 海宝由佳; 金田義行; 笠谷貴史; 中村恭之; 野徹雄; 佐藤壮; STRASSER Michael; 高橋成実; 高橋努; WEFER Gerold
2011年東北地方太平洋沖地震後の海底地形調査から明らかになった海底地形変動分布
日本地球惑星科学連合大会予稿集(Web), 2015 - 小平秀一; 野徹雄; 中村恭之; 三浦誠一; 富士原敏也; 海宝由佳; 藤江剛; 高橋成実; 金田義行
2011年東北沖地震:震源断層の構造イメージとその地震時変動
日本地震学会秋季大会講演予稿集, 2012 - 小平秀一; 中村恭之; 富士原敏也; 野徹雄; 海宝由佳; 藤江剛; 佐藤壮; 三浦誠一; 高橋成実; 金田義行
2011年東北沖地震震源域での緊急調査の成果と今後の展望
ブルーアース要旨集, 2012 - 富士原敏也; 小平秀一; 野徹雄; 海宝由佳; 藤江剛; 中村恭之; 高橋努; 山本揚二朗; 佐藤壮; 木戸ゆかり; 高橋成実; 金田義行
2011年東北地方太平洋沖地震前後の海底地形調査から明らかになった海底変動
ブルーアース要旨集, 2012 - 富士原敏也; 小平秀一; 野徹雄; 海宝由佳; 藤江剛; 中村恭之; 高橋努; 山本揚二朗; 高橋成実; 木戸ゆかり; 金田義行
2011年東北地方太平洋沖地震前後の海底地形調査から明らかになった海底変動
日本地震学会秋季大会講演予稿集, 2011 - 中村武史; 馬場俊孝; 富士原敏也; 野徹雄; 小平秀一; 堀高峰; 金田義行
2011年東北地方太平洋沖地震における初期水位分布と海底地形調査による地震発生前後の地形変化の検証
日本地震学会秋季大会講演予稿集, 2011 - 小平秀一; 富士原敏也; 野徹雄; 中村恭之; 藤江剛; 海宝由佳; 三浦誠一; 佐藤壮; 山下幹也; 堀高峰; 深尾良夫; 中村武史; 高橋成実; 金田義行
緊急調査から見えてきた2011東北沖地震の実態
日本地震学会秋季大会講演予稿集, 2011 - 中村恭之; 野徹雄; 海宝由佳; 藤江剛; 高橋成実; 三浦誠一; 山下幹也; 尾鼻浩一郎; 佐藤壮; 山本揚二朗; 富士原敏也; 木戸ゆかり; 柏瀬憲彦; 小平秀一; 金田義行; PARK Jin-Oh; 辻健
宮城沖における反射法地震探査-東北地方太平洋沖地震緊急調査速報-
日本地質学会学術大会講演要旨, 2011 - ABE Natsue; Fujiwara Toshiya; Kanamatsu Toshiya; Suetsugu Daisuke; Yamazaki Toshitsugu; Iwamori Hikaru; Anma Ryo; Hirano Naoto; Orihashi Yuji; Harada Naomi
Overview of the MR08-06 Leg1 Marine Geology and Geophysical Research: A complete cross-Ocean Hemisphere Cruise
Abstracts of Annual Meeting of the Geochemical Society of Japan, 2010 - Okamura Satoshi; Sakamoto Izumi; Kim Yong-Ui; Ishizuka Osamu; Yuasa Makoto; Fujiwara Toshiya; Fujioka Kantaro; Kuramoto Yoshiyuki; Maeda Jin'ichiro
Petrology of volcanic rocks from seamounts and small knolls around the Sofugan Tectonic Line, Izu-Bonin arc
Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences, 2007 - Sakamoto I.; Ishizuka O.; Yuasa M.; Okamura S.; Kim Y.; Fujiwara T.; Fujioka K.
Volcanic activity of Back-arc knolls zone and associations with the development of Sofugan Tectonic Line, Izu-Ogasawara Arc.
Annual Meeting of the Geological Society of Japan, 2005 - Soh W.; Djajadihardja Y.S.; Machiyama H.; Fujiwara T.; Hirata K.; Araki E.; Watanabe K.; Arai K.; Suyehiro K.; Kinoshita M.; Ashi J.
Direct Observation of deep seafloor distrurbance caused by the Sumatra Andaman Earthquake, 2004
Annual Meeting of the Geological Society of Japan, 2005 - Sakamoto Izumi; Ishizuka Osamu; Fujiwara Toshiya; Kim Yun-Ui
O-39 Topographical and geo-structural development of Sofugan Tectonic Line, Izu-Ogasawara Arc.
Annual Meeting of the Geological Society of Japan, 2004 - SAKAMOTO Izumi; FUJIWARA Toshiya; ISHIZUKA Osamu
Geology and tectonics of Sofugan Tectonic Line, Izu-Ogasawara Arc
PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN, 2000
