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J-GLOBAL ID：200901001921982130   Update date: Nov. 15, 2024

Ashi Juichiro

アシ ジュイチロウ | Ashi Juichiro
Affiliation and department：
The University of Tokyo Graduate School of Frontier Sciences, Department of Natural Environmental Studies, The University of Tokyo Graduate School of Frontier Sciences Department of Natural Environmental Studies

About The University of Tokyo Graduate School of Frontier Sciences, Department of Natural Environmental Studies, The University of Tokyo Graduate School of Frontier Sciences Department of Natural Environmental Studies


Job title： Associate Professor
Other affiliations (1)：
  • The University of Tokyo  Atmosphere and Ocean Research Institute, Ocean Floor Geoscience Group   Associate Professor
Homepage URL  (1)： http://ofgs.aori.u-tokyo.ac.jp/ashi/ashi-res-j.html
Research field  (2)： Solid earth science ,  Disaster prevention engineering
Research keywords  (4)： earthquake history ,  active submarine fault ,  accretionary prism ,  methane hydrate
Research theme for competitive and other funds  (26)：
  • 2019 - 2022 Study on seafloor movement and earthquake history by activity of source faults of Sagami Trough great earthquakes
  • 2018 - 2021 Tsunamigenic normal faults generating large outer-rise earthquake in the Japan Trench margin
  • 2015 - 2018 Accuracy improvement of earthquake history of the Nankai Trough by sediment records from terminal basins
  • 2015 - 2017 Verification of intermittent methane emissions using radiocarbon age of shells from a large scale biological community off Tokai
  • 2009 - 2014 High precision topographical/geological surveys for elucidating the activity history of seismogenic faults
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Papers (150)：
  • Toshiya Kanamatsu, Juichiro Ashi, Kazuya Shiraishi. Controlling factors of a submarine landslide on the Kumano-nada continental slope, West Japan. Tectonophysics. 2024. 883. 230370-230370
  • Ryo Nakanishi, Juichiro Ashi, Satoshi Okamura, Yusuke Yokoyama, Yosuke Miyairi. Understanding paleo-earthquakes in the Kuril Trench based on Late-Holocene tsunami deposits in the distal region from wave sources, northern Hidaka, Hokkaido, Japan. PLOS ONE. 2024
  • Ijiri, A, Setoguchi, R, Mitsutome, Y, Toki, T, Murayama, M, Hagino, K, Hamada, Y, Yamagata, T, Matsuzaki, H, Tanikawa, W, et al. Origins of sediments and fluids in submarine mud volcanoes off Tanegashima Island, northern Ryukyu Trench, Japan. Frontiers in Earth Science. 2023. 11
  • Ryo Nakanishi, Juichiro Ashi, Yosuke Miyairi, Yusuke Yokoyama. Relationship between depositional environments and preservabilities of Holocene tsunami deposits on the Hidaka coast, Hokkaido, Japan. Quaternary Science Advances. 2023
  • Ryo Nakanishi, Juichiro Ashi, Masataka Aizawa, Hajime Naruse. Application of mineralogy and geochemistry to identify the landward extent of paleo-tsunami deposits not visible to the naked eye in the coastal wetland of Erimo, Hokkaido, Japan. Sedimentary Geology. 2023. 447. 106365-106365
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MISC (55)：
  • Juichiro Ashi, Ayanori Misawa, Toshiya Kanamatsu, Ken Ikehara. Fault displacement and seep activity at the western flank of the Miura Knoll, Sagami Bay. 2023
  • Depositional environment of turbidite offshore east of Cape Muroto and paleoseismic history. 2023
  • Juichiro Ashi, Ayanori Misawa, Toshiya Kanamatsu, Ken Ikehara. Fault displacement and seep activity at the western flank of the Miura Knoll, Sagami Bay. 2023
  • 山口飛鳥, 福地里菜, 濱田洋平, 高下裕章, 川村喜一郎, 井尻暁, 奥田花也, 浜橋真理, 照井孝之介, 細川貴弘, et al. Updating tectonic evolution of the Nankai accretionary prism and geological structures of the boundary between segments of megathrust earthquakes based on submersible survey along Shionomisaki submarine canyon: Initial report of R/V Yokosuka YK23-10S cruise. 日本地質学会学術大会(Web). 2023. 130th
  • Age and frequency of turbidite deposition in the Nankai Trough - A study using nondestructive analyses of physical property and element composition, and radiocarbon dating. 2022
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Books (8)：
  • 水産ハンドブック
    講談社 2012
  • 自然環境学の創る世界
    朝倉書店 2011
  • 付加体と巨大地震発生帯,南海地震の解明に向けて
    東京大学出版会 2009 ISBN:9784130667098
  • 日本地方地質誌5 近畿地方
    朝倉書店 2009
  • 海の環境100の危機
    東京書籍 2006 ISBN:4487801524
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Lectures and oral presentations  (123)：
  • Origin of hydrocarbon gases and sediments in submarine mud volcanoes, off Tanegashima Island
    (日本地球化学会年会要旨集(Web) 2020)
  • Characteristics and origin of sediments collected from mud volcanos off Tanegashima
    (日本地球惑星科学連合大会予稿集(Web) 2020)
  • TOC and stable carbon isotope in surface deposit at Tanegashima mud volcanoes
    (日本地球惑星科学連合大会予稿集(Web) 2020)
  • Discharging flux of deep-sourced fluid from submarine mud volcanoes off Tanegashima
    (日本地球惑星科学連合大会予稿集(Web) 2020)
  • The emergence of coastal disasters during the mid-Holocene highstand: An example from the coast of Hidaka, Hokkaido
    (日本地球惑星科学連合大会予稿集(Web) 2020)
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Education (4)：
  • 1987 - 1991 The University of Tokyo Graduate School of Science Department of Geology
  • - 1991 The University of Tokyo Graduate School, Division of Science
  • 1985 - 1987 Kobe University Graduate School of Science Department of Earth Sciences
  • 1981 - 1985 Kobe University Faculty of Science Department of Earth Sciences
Professional career (1)：
  • Doctor of Science (The University of Tokyo)
Work history (7)：
  • 2006/04 - 現在 The University of Tokyo Graduate School of Frontier Sciences Associate Professor
  • 2001/04 - 2006/03 The University of Tokyo Ocean Research Institute Associate Professor
  • 1993/04 - 2001/03 The University of Tokyo Graduate School of Science Assistant Professor
  • 1993 - 2001 Graduate School of Science, The University of Tokyo,
  • 1991/04 - 1993/03 JSPS Post-doctoral Research Fellow
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Association Membership(s) (4)：
日本堆積学会 ,  日本地質学会 ,  日本地震学会 ,  American Geophysical Union
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