Research Institute for Marine Geodynamics (IMG) Subduction Dynamics Research Center (SDR) Marine Seismology Research Group
Career
Resercher
Profile
Speciality
Structural Seismology
Working place
Yokohama Institute for Earth Sciences 3173-25, Showa-Cho, Kanazawa-ku, Yokohama-shi, Kanagawa, Japan
E-mail
ryuta[at]jamstec.go.jp
Society
日本地震学会・日本地質学会・日本地球惑星科学連合・American Geophysical Union
Award
2018/03/12 2017年度日本地震学会若手学術奨励賞
Research Achievement
Peer reviewed publications (Belonging to JAMSTEC)
Mikito Furuichi, Jian Chen, Daisuke Nishiura, Ryuta Arai, Yuzuru Yamamoto, Satoshi Ide. Virtual earthquakes in a numerical granular rock box experiment. TECTONOPHYSICS, 2024, 874, 11, p. 230230, doi: 10.1016/j.tecto.2024.230230
Bassett, D., G. Fujie, S. Kodaira, R. Arai, Y. Yamamoto, S. Henrys, D. Barker, A. Gase, H. van Avendonk, N. Bangs, H. Seebeck, B. Tozer, K. Jacobs, T. Luckie, D. Okaya, K. Mochizuki. Heterogeneous Crustal Structure of the Hikurangi Plateau Revealed by SHIRE Seismic Data: Origin and Implications for Plate Boundary Tectonics. GEOPHYSICAL RESEARCH LETTERS, 2023, 50, 22, doi: 10.1029/2023GL105674
Gase, A., N. Bangs, D. Saffer, S. Han, P. Miller, R. Bell, R. Arai, S. Henrys, S. Kodaira, R. Davy, L, Frahm, D. Barker. Subducting volcaniclastic-rich upper crust supplies fluids for shallow megathrust and slow slip. Science Advances, 2023, 9, 33, doi: 10.1126/sciadv.adh0150
Furuichi M., Chen Jian., Nishiura D., Arai Ryuta., Yamamoto Yuzuru.,. Thrust formation using a numerical granular rock box experiment. TECTONOPHYSICS, 2023, 862, p. 229963, doi: 10.1016/j.tecto.2023.229963
Nathan L. Bangs, Julia K. Morgan, Rebecca E. Bell, Shuoshuo Han, Ryuta Arai, Shuichi Kodaira, Andrew C. Gase, Xinming Wu, Richard Davy, Laura Frahm, Hannah L. Tilley, Daniel H. N. Barker, Joel H. Edwards, Harold J. Tobin, Tim J. Reston, Stuart A. Henrys, Gregory F. Moore, Dan Bassett, Richard Kellett, Valerie Stucker & Bill Fry. Slow slip along the Hikurangi margin linked to fluid-rich sediments trailing subducting seamounts. Nature Geoscience, 2023, 16, p. 505-512, doi: 10.1038/s41561-023-01186-3
Takashi Tonegawa, Eiichiro Araki, Hiroyuki Matsumoto, Toshinori Kimura, Koichiro Obana, Gou Fujie, Ryuta Arai, Kazuya Shiraishi, Masaru Nakano, Yasuyuki Nakamura, Takashi Yokobiki, Shuichi Kodaira. Extraction of P wave from ambient seafloor noise observed by distributed acoustic sensing. GEOPHYSICAL RESEARCH LETTERS, 2022, 49, 4, doi: 10.1029/2022GL098162
Dan Bassett, Adrien Arnulf, Stuart Henrys, Daniel Barker, Harm Van Avendonk, Nathan Bangs, Shuichi Kodaira, Hannu Seebeck, Laura Wallace, Andrew Gase, Thomas Luckie, Katrina Jacobs, Brook Tozer, Ryuta Arai, David Okaya, Kimihiro Mochizuki, Gou Fujie, Yojiro Yamamoto. Crustal structure of the Hikurangi margin from SHIRE seismic data and the relationship between forearc structure and shallow megathrust slip behaviour. GEOPHYSICAL RESEARCH LETTERS, 2022, 49, 2, p. e2021GL096960, doi: 10.1029/2021GL096960
Richard G. Davy, Laura Frahm, Rebecca Bell, Ryuta Arai, Daniel H. N. Barker, Stuart Henrys, Nathan Bangs, Joanna Morgan, Michael Warner,. Generating High-Fidelity Reflection Images Directly From Full-Waveform Inversion: Hikurangi Subduction Zone Case Study. GEOPHYSICAL RESEARCH LETTERS, 2021, 48, 19, doi: 10.1029/2021GL094981
Ryuta Arai. Characteristics of seismicity in the southern Okinawa Trough and their relation to back-arc rifting processes. EARTH PLANETS AND SPACE, 2021, 73, 1, p. 160, doi: 10.1186/s40623-021-01491-4
Andrew C Gase, Harm JA Van Avendonk, Nathan L Bangs, Dan Bassett, Stuart A Henrys, Daniel HN Barker, Shuichi Kodaira, Katrina M Jacobs, Thomas W Luckie, David A Okaya, Gou Fujie, Yojiro Yamamoto, Adrien F Arnulf, Ryuta Arai. Crustal structure of the northern Hikurangi margin, New Zealand: Variable accretion and overthrusting plate strength influenced by rough subduction. JOURNAL OF GEOPHYSICAL RESEARCH - Solid Earth, 2021, 126, 5, p. e2020JB021176, doi: 10.1029/2020JB021176
Hiroyuki Matsumoto, Eiichiro Araki, Toshinori Kimura, Gou Fujie, Kazuya Shiraishi, Takashi Tonegawa, Koichiro Obana, Ryuta Arai, Yuka Kaiho, Yasuyuki Nakamura, Takashi Yokobiki, Shuichi Kodaira, Narumi Takahashi, Robert Ellwood, Victor Yartsev, Martin Karrenbach. Detection of hydroacoustic signals on a fiber-optic submarine cable. Scientific Reports, 2021, 11, doi: 10.1038/s41598-021-82093-8
Ryuta Arai, Shuichi Kodaira, Stuart Henrys, Nathan Bangs, Koichiro Obana, Gou Fujie, Seiichi Miura, Daniel Barker, Dan Bassett, Rebecca Bell, Kimihiro Mochizuki, Richard Kellett, Valerie Stucker, Bill Fry, NZ3D Team. Three‐dimensional P‐wave velocity structure of the northern Hikurangi margin from the NZ3D experiment: Evidence for fault‐bound anisotropy. JOURNAL OF GEOPHYSICAL RESEARCH - Solid Earth, 2020, 125, 12, doi: 10.1029/2020JB020433
Takeshi Sato, Tetsuo No, Ryuta Arai, Seiichi Miura, Shuichi Kodaira. Transition from continental rift to back-arc basin in the southern Japan Sea deduced from seismic velocity structures. GEOPHYSICAL JOURNAL INTERNATIONAL, 2020, 221, 1, p. 722-739, doi: 10.1093/gji/ggaa006
Bell, R. M. Gray, J. Morgan, M. Warner, A. Fagereng, L. McNeill, K. Jacobs, S. A. Henrys, B. Fry, S. Watkins, H. Lacey, J. A. Black, V. Lane, D. Daly, D. Lindsay, N. Bangs, R. Arai, S. Kodaira, NZ3D-FWI Team. New Zealand 3D Full Waveform Inversion (NZ3D-FWI) 2017–2018 Field Acquisition Report. GNS Science Report, 2019, 71, p. 79, doi: 10.21420/ZZ8R-QR04
K. Mochizuki, R. Sutherland, S. Henrys, D. Bassett, H. Van Avendonk, R. Arai, S. Kodaira, G. Fujie, Y. Yamamoto, N. Bangs and D. Barker. Recycling of depleted continental mantle by subduction and plumes at the Hikurangi Plateau large igneous province, southwestern Pacific Ocean. GEOLOGY, 2019, 47, 8, p. 795-798, doi: 10.1130/G46250.1
新井隆太. 地震波構造探査に基づくプレート境界域の地震学的構造と地殻活動の研究. 地震, 2019, 72, p. 1-16
Tetsuo No, Takeshi Sato, Shuichi Kodaira, Ryuta Arai, Seiichi Miura. Multichannel seismic reflection data from the southern part of the Japan Sea. JAMSTEC Report of Research and Development, 2018, 27, p. 127-141, doi: 10.5918/jamstecr.27.127
Ryuta Arai, Shuichi Kodaira, Tsutomu Takahashi, Seiichi Miura and Yoshiyuki Kaneda. Seismic evidence for arc segmentation, active magmatic intrusions and syn-rift fault system in the northern Ryukyu volcanic arc. EARTH PLANETS AND SPACE, 2018, 70, 61, doi: https://doi.org/10.1186/s40623-018-0830-8
Yojiro Yamamoto, Tsutomu Takahashi, Yasushi Ishihara, Yuka Kaiho, Ryuta Arai, Koichiro Obana, Ayako Nakanishi, Seiichi Miura, Shuichi Kodaira, Yoshiyuki Kaneda. Modeling the Geometry of Plate Boundary and Seismic Structure in the Southern Ryukyu Trench Subduction Zone, Japan, Using Amphibious Seismic Observations. JOURNAL OF GEOPHYSICAL RESEARCH - Solid Earth, 2018, 123, doi: 10.1002/2017JB015330
Robert A. Dunn, Ryuta Arai, Deborah E. Eason, J. Pablo Canales, Robert A. Sohn. Three‐Dimensional Seismic Structure of the Mid‐Atlantic Ridge: An Investigation of Tectonic, Magmatic, and Hydrothermal Processes in the Rainbow Area. JOURNAL OF GEOPHYSICAL RESEARCH - Solid Earth, 2017, 122, 12, p. 9580-9602
Akane Ohira, Shuichi Kodaira, Yasuyuki Nakamura, Gou Fujie, Ryuta Arai, Seiichi Miura. Evidence for frozen melts in the mid-lithosphere detected from active-source seismic data. Scientific Reports, 2017, 7, doi: 10.1038/s41598-017-16047-4
Akane Ohira, Shuichi Kodaira, Yasuyuki Nakamura, Gou Fujie, Ryuta Arai, Seiichi Miura. Structural variation of the oceanic Moho in the Pacific plate revealed by active-source seismic data. EARTH AND PLANETARY SCIENCE LETTERS, 2017, 476, p. 111-121
Ryuta Arai, Shuichi Kodaira, Tomoaki Yamada, Tsutomu Takahashi, Seiichi Miura, Yoshiyuki Kaneda, Azusa Nishizawa, Mitsuhiro Oikawa. Subduction of thick oceanic plateau and high-angle normal-fault earthquakes intersecting the slab. GEOPHYSICAL RESEARCH LETTERS, 2017, 44, p. 6109-6115, doi: 10.1002/2017GL073789
J. Pablo Canales, Robert A. Dunn, Ryuta Arai, Robert A. Sohn. Seismic imaging of magma sills beneath an ultramafic-hosted hydrothermal system. GEOLOGY, 2017, 45, 5, p. 451-454, doi: 10.1130/G38795.1
Ryuta Arai, Shuichi Kodaira, Yuka Kaiho, Tsutomu Takahashi, Seiichi Miura, Yoshiyuki Kaneda. Crustal structure of the southern Okinawa Trough: Symmetrical rifting, submarine volcano and potential mantle accretion in the continental back-arc basin. Journal of Geophysical Research: Solid Earth/Wiley, 2017, 122, doi: 10.1002/2016JB013448
Ryuta Arai, Tsutomu Takahashi, Shuichi Kodaira, Yuka Kaiho, Ayako Nakanishi, Gou Fujie, Yasuyuki Nakamura, Yojiro Yamamoto, Yasushi Ishihara, Seiichi Miura & Yoshiyuki Kaneda. Structure of the tsunamigenic plate boundary and low-frequency earthquakes in the southern Ryukyu Trench. Nature Communications, 2016, 7, doi: 10.1038/ncomms12255
Yamada, T., Y. Yukutake, T. Terakawa, R. Arai. Migration of earthquakes with a small stress drop in the Tanzawa Mountains, Japan. Earth, Planets and Space/Springer, 2015, 67, p. 175, doi: 10.1186/s40623-015-0344-6
Iidaka, T., E. Kurashimo, T. Iwasaki, R. Arai, A. Kato, H. Katao, F. Yamazaki. Large heterogeneous structure beneath the Atotsugawa Fault, central Japan, revealed by seismic refraction and reflection experiments. Tectonophysics/Elsevier, 2015, 657, p. 144-154
Arai, R., and T. Iwasaki. Transition from collision to subduction and its relation to slab seismicity and plate coupling. Earth, Planets and Space/Springer, 2015, 67, p. 76, doi: 10.1186/s40623-015-0247-6
Yukutake, Y., R. Honda, M. Harada, R. Arai, M. Matsubara. A magma‐hydrothermal system beneath Hakone volcano, central Japan, revealed by highly resolved velocity structures. Journal of Geophysical Research: Solid Earth, 2015, 120, doi: 10.1002/2014JB011856
Arai R., T. Iwasaki, H. Sato, S. Abe, N. Hirata. Contrasting subduction structures within the Philippine Sea plate: Hydrous oceanic crust and anhydrous volcanic arc crust. Geochemistry, Geophysics, Geosystems/AGU, 2014, 15, 5, p. 1977-1990, doi: doi:10.1002/2014GC005321
Arai R., T. Iwasaki. Crustal structure in the northwestern part of the Izu collision zone in central Japan. Earth, Planets and Space/Springer Japan, 2014, 66, p. 21-21, doi: 10.1186/1880-5981-66-21
Non-peer reviewed publications (Belonging to JAMSTEC)
新井隆太. ゆっくり地震と沈み込む海山―ニュージーランドでの地震の起こり方は日本と似ている?. JAMSTEC BASE 研究者コラム, 2023
Arai Ryuta. Estimation of stress state and detailed structure at shallow plate boundary based on 3D seismic data. Impact / Science Impact Ltd, 2020, 2020, 3, p. 20-22, doi: 10.21820/23987073.2020.3.20
MGL1801 Participants - Ryuta Arai, Stephen Ball, Nathan Bangs, Dan Barker, Joel Edwards, Melissa Gray, Shuoshuo Han, Harold Leah, Tim Reston, Hannah Tilley, and Harold Tobin. The NZ3D Experiment - Adding a new dimension for understanding slow slip events. GeoPRISMS Newsletters, 2018, 40, p. 14-15
新井隆太. Marine Science Seminar 地震波を使って海底下を診る. Blue Earth/JAMSTEC, 2017, 29, 4, p. 30-33
新井隆太. ハワイ大ポスドク生活を振り返って. 日本地震学会ニュースレター, 2017, 69, 6, p. 26-27
Ryuta Arai, Shuichi Kodaira, Stuart Henrys, Nathan Bangs, Koichiro Obana, Gou Fujie, Seiichi Miura, Daniel Barker, Dan Bassett, Rebecca Bell, Kimihiro Mochizuki, Richard Kellett, Valerie Stucker, and Bill Fry. Seismic anisotropy structure of the northern Hikurangi margin, New Zealand, and its significance for subduction fault systems. EGU General Assembly 2022, 2022, EGU22-1403
R. Arai, S. Kodaira, T. Takahashi, A. Nakanishi, Y. Yamamoto, Y. Kaiho, Y. Ishihara, S. Miura, Y. Kaneda. Active and passive seismic investigations in the Ryukyu Trench and the Okinawa Trough: A review of 7-year achievements by JAMSTEC. 日本地震学会2020年秋季大会, 2020, S22-08
新井 隆太、白石 和也、三浦 誠一、高橋 努、中村 恭之、藤江 剛、小平 秀一、海宝 由佳、濱田 洋平、Ma Yanxue. Correlation between plate boundary structure and distribution of shallow slow earthquakes in the western Nankai Trough. Japan Geoscience Union Meeting 2023, 2023
Ryuta Arai, Seiichi Miura, Yasuyuki Nakamura, Gou Fujie, Yuka Kaiho, Shuichi Kodaira, Kimihiro Mochizuki, Rie Nakata, Kyoko Okino. Correlation between physical properties of the plate interface and distribution of slow earthquakes in the Hyuga-nada subduction zone. International Joint Workshop on Slow Earthquakes 2021, 2021, O-18
Ryuta Arai. Seismic investigation of the Okinawa Trough as an analog of the Red Sea. 1st KAUST-JAMSTEC workshop on the Red Sea initiative: Discovering the Red Sea - a future for the world's oceans, 2021
新井隆太、三澤文慶、大坪誠、石野沙季、木下正高、KH-21-3乗船研究者. Structure and seismicity in the southern part of the Okinawa Trough and their implications for rifting and volcanic processes. JpGU2021, 2021, SCG45-08
R. Arai, S. Kodaira, S. Henrys, B. Nathan, K. Obana, G. Fujie, S. Miura, D. Barker, D. Bassett, R. Bell, K. Mochizuki, R. Kellett, V. Stucker, B. Fry and NZ3D Team. P-wave velocity structure and stress state ofshallow subduction faults in the northern Hikurangi margin, New Zealand, from NZ3D OBS data. AGU Fall Meeting 2020, 2020, T022-05