JAMSTEC > JAMSTEC Researchers Database > Junko Yoshimitsu

JAMSTEC Researchers Database

Last update :2022/06/15

  • Junko Yoshimitsu
Department
Research Institute for Marine Geodynamics (IMG)　Volcanoes and Earth’s Interior Research Center (VERC)　Geophysical Research Group
Career
Research Technician

Profile

Speciality
Seismology

Research Achievement

Peer reviewed publications (Belonging to JAMSTEC)

  • Daisuke Suetsugu, Masayuki Obayashi, Takashi Tonegawa, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Yasushi Ishihara, Satoru Tanaka, Junko Yoshimitsu. Nature of mantle discontinuities beneath the Ontong Java Plateau. PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 2022, doi: 10.1016/j.pepi.2022.106969
  • Masayuki Obayashi, Junko Yoshimitsu, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Yasushi Ishihara, Satoru Tanaka, Takashi Tonegawa. Interrelation of the stagnant slab, Ontong Java Plateau, and intraplate volcanism as inferred from seismic tomography. Scientific Reports, 2021, doi: 10.1038/s41598-021-99833-5
  • Takehi Isse, Daisuke Suetsugu, Akira Ishikawa, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Yuki Kawano, Kazunori Yoshizawa, Yasushi Ishihara, Satoru Tanaka, Masayuki Obayashi, Takashi Tonegawa & Junko Yoshimitsu. Seismic evidence for a thermochemical mantle plume underplating the lithosphere of the Ontong Java Plateau. Communications Earth & Environment, 2021, 2, 98, doi: 10.1038/s43247-021-00169-9
  • Yuki Kawano, Takehi Isse, Akiko Takeo, Hitoshi Kawakatsu, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Yasushi Ishihara, Satoru Tanaka, Masayuki Obayashi, Takashi Tonegawa, Junko Yoshimitsu. Persistent Long-Period Signals Recorded by an OBS Array in the Western-Central Pacific: Activity of Ambrym Volcano in Vanuatu. GEOPHYSICAL RESEARCH LETTERS, 2020, 47, 19, doi: 10.1029/2020GL089108
  • D. Suetsugu, H. Shiobara, H. Sugioka, A. Ito, T. Isse, Y. Ishihara, S. Tanaka, M. Obayashi, T. Tonegawa, J. Yoshimitsu, T. Kobayashi. High QScS beneath the Ontong Java Plateau. EARTH PLANETS AND SPACE, 2019, 71, doi: 10.1186/s40623-019-1077-8
  • T. Tonegawa, S. Miura, A. Ishikawa, T. Sano, D. Suetsugu, T. Isse, H. Shiobara, H. Sugioka, A. Ito, Y. Ishihara, S. Tanaka, M. Obayashi, J. Yoshimitsu, T. Kobayashi. Characterization of Crustal and Uppermost‐Mantle Seismic Discontinuities in the Ontong Java Plateau. JOURNAL OF GEOPHYSICAL RESEARCH - Solid Earth, 2019, 124, 7, p. 7155-7170, doi: 10.1029/2018JB016970
  • 吉光 淳子. 観測点間相対走時差の多周波数測定. JAMSTEC Report of Research and Development, 2018, 27, p. 98-108, doi: 10.5918/jamstecr.27.98
  • Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Noriko Tada, Aki Ito, Takehi Isse, Kiyoshi Baba, Hiroshi Ichihara, Toyonobu Ota, Yasushi Ishihara, Satoru Tanaka, Masayuki Obayashi, Takashi Tonegawa, Junko Yoshimitsu, Takumi Kobayashi, Hisashi Utada. The OJP array: seismological and electromagnetic observation on seafloor and islands in the Ontong Java Plateau. JAMSTEC Report of Research and Development, 2018, 26, p. 54-64, doi: 10.5918/jamstecr.26.54
  • Junko Yoshimitsu, Masayuki Obayashi. A database of global seismic travel times. JAMSTEC Report of Research and Development, 2017, 24, p. 23-29, doi: doi: 10.5918/jamstecr.24.5
  • Masayuki Obayashi, Yoshio Fukao, Junko Yoshimitsu. Unusually deep Bonin earthquake of 30 May 2015: A precursory signal to slab penetration?. Earth and Planetary Science Letters, 2016, 459, p. 221-226
  • M. Obayashi, J. Yoshimitsu, H. Sugioka, A. Ito, T. Isse, H. Shiobara, D. Reymond, and D. Suetsugu. Mantle plumes beneath the South Pacific superswell revealed by finite frequency P tomography using regional seafloor and island data. Geophysical Research Letters, 2016, 43, doi: doi:10.1002/2016GL070793
  • Masayuki Obayashi, Junko Yoshimitsu, Guust Nolet, Yoshio Fukao, Hajime Shiobara, Hiroko Sugioka, Hiroki Miyamachi,Yuan Gao. Finite frequency whole mantle P wave tomography: Improvement of subducted slab images. Geophysical Research Letters, 2013, 40, 21, p. 5652-5657, doi: doi:10.1002/2013GL057401
  • Junko Yoshimitsu, Masayuki Obayashi, Yoshio Fukao. Development of the global seismic travel time database at JAMSTEC/IFREE. JAMSTEC Report R&D, 2009, Special Issue, p. 163-172
  • Masayuki Obayashi, Junko Yoshimitsu, Yoshio Fukao. Tearing of Stagnant Slab. Science, 2009, 324, 5931, p. 1173-1175, doi: 10.1126/science.1172496
  • S. Tanaka, M. Obayashi, D. Suetsugu, H. Shiobara, H. Sugioka, J. Yoshimitsu, T. Kanazawa, Y. Fukao, G. Barruol. P-wave tomography of the mantle beneath the South Pacific Superswell revealed by joint ocean floor and islands broadband seismic experiments. Phys. Earth Planet. Inter., 2009, 172, 3/4, p. 268-277
  • M. Obayashi, H. Sugioka, J. Yoshimitsu, Y. Fukao. High temperature anomalies oceanward of subducting slabs at the 410-km discontinuity. Earth Planet. Sci. Lett., 2006, 243, p. 149-158

Invited oral presentation(Belonging to JAMSTEC)

  • Masayuki Obayashi, Daisuke Suetsugu, Satoru Tanaka, Takehi Isse, Junko Yoshimitsu, Hajime Shiobara, Hiroko Sugioka, Toshihiko Kanazawa, Yoshio Fukao, Guilhem Barroul, Dominique Reymond. 南太平洋マントルプリュームの地震学的イメージ. 2008年度日本地球化学会年会, 2008

oral presentation(Belonging to JAMSTEC)

  • 大林 政行、吉光 淳子、深尾 良夫. 千島－本州スラブ海側の410-km不連続面 直上の低速度異常. 地震学会2021年度秋季大会, 2021
  • Masayuki Obayashi, Hiroko Sugioka, Junko Yoshimitsu. Two-year seismic observation by hydrophone floats. Japan Geoscience Union Meeting 2021, 2021
  • Masayuki Obayashi, Junko Yoshimitsu, Yoshio Fukao. Slow anomalies atop the 410-km discontinuity oceanward of the Kurile slab. Japan Geoscience Union Meeting 2021, 2021
  • 大林 政行、吉光 淳子、深尾 良夫. 千島－本州スラブ海側のマントル不連続面. 地震学会2020年度秋季大会, 2020
  • Suetsugu Daisuke, Shiobara Hajime, Sugioka Hiroko, Ito Aki, Isse Takehi, Ishihara Yasushi, Tanaka Satoru, Obayashi Masayuki, Tonegawa Takashi, Yoshimitsu Junko, Kobayashi Takumi. Topography on the mantle discontinuities beneath the Ontong Java Plateau. JpGU2020　SIT25-08, 2020
  • Takashi Tonegawa, Daisuke Suetsugu, Seiichi Miura, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Yasushi Ishihara, Satoru Tanaka, Masayuki Obayashi, Junko Yoshimitsu, Takumi Kobayashi. Receiver function imaging at the crust and uppermost mantle of Ontong Java Plateau. AGU fall meeting 2018, 2018
  • Masayuki Obayashi, Junko Yoshimitsu, Daisuke Suetsugu, Hajime Shiobara, HIroko Sugioka, Aki Ito, Takehi Isse, Yasushi Ishihara, Satoru Tanaka, Takashi Tonegawa, Takumi Kobayashi. オントン・ジャワ海台下のP波速度構造. 地震学会2018年度秋季大会, 2018
  • Takehi Isse, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Yasushi Ishihara, Satoru Tanaka, Masayuki Obayashi, Takashi Tonegawa, Junko Yoshimitsu, Takumi Kobayashi. Shear wave upper mantle structure beneath the Ontong Java Plateau. 2018 JpGU meeting, 2018
  • Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Yasushi Ishihara, Satoru Tanaka, Masayuki Obayashi, Takashi Tonegawa, Junko Yoshimitsu, Takumi Kobayashi. Seismic attenuation in the mantle beneath the Ontong Java Plateau from multiple ScS waves. 2018 JpGU meeting, 2018
  • Takashi Tonegawa, Daisuke Suetsugu, Seiichi Miura, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Yasushi Ishihara, Satoru Tanaka, Masayuki Obayashi, Junko Yoshimitsu, Takumi Kobayashi. Retrieval of converted phases from shallow structure of the Ontong Java Plateau. 日本地球惑星科学連合2018年大会, 2018
  • Masayuki Obayashi, Guust Nolet, Junko Yoshimitsu, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Masayoshi Ichiyaagi, Toshihiko Kanazawa, Yoshio Fukao. Finite frequency tomography fort the northwestern Pacific region. ESC 32nd General Assembly; Le Corum, Monpellier, France, 2010
  • Masayuki Obayashi, Yoshio Fukao, Junko Yoshimitsu, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Azusa Shito, Hitoshi Kawakatsu, Minoru Kasahara, Masayoshi Ichiyaagi, Hiroki Miyamachi, Toshihiko Kanazawa, Yuan Gao. Transition from slab stagnation to penetration. JPGU Meeting 2010; International Conference Hall Makuhari Messe, 2010
  • Masayuki Obayashi, Junko Yoshimitsu, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Azusa Shito, Hitoshi Kawakatsu, Minoru Kasahara, Masayoshi Ichiyanagi, Hiroki Miyamachi, Yuan Gao, Toshihiko Kanazawa, Yoshio Fukao. Slab image improved by Stagnant Slab Project seismic networks. 地球惑星科学関連学会2009年合同大会, 2009
  • Masayuki Obayashi, Junko Yoshimitsu, Yoshio Fukao. Slab Tearing To Be Stagnant. 2008 AGU Fall Meeting, 2008
  • Masayuki Obayashi, Junko Yoshimitsu, Yoshio Fukao. Slab Tearing To Be Stagnant. 7th General Assembly of Asian Seismological Commission, 2008
  • Masayuki Obayashi, Junko Yoshimitsu, Yoshio Fukao. Slab tear at the junction between Japan and Izu-Bonin slabs. 7th General Assembly of Asian Seismological Commission, 2008
  • S. Tanaka, M.Obayashi, D.Suetsugu, H.Shiobara, H.Sugioka, J.Yoshimitsu, T.Kanazawa, Y.Fukao, G.Barruol. P-wave tomography of the mantle beneath the South Pacific Superswell revealed by joint ocean floor and islands broadband seismic experiments. SEDI 2008, 2008
  • Seiji Tsuboi, Masayuki Obayashi, Junko Yoshumitu. Adjoint法による日本列島下の構造に対するfinite frequency kernelの計算. 地球惑星科学関連学会2008年合同大会, 2008
  • 坪井 誠司,大林 政行 , 吉光 淳子. Adjoint法による日本列島下の構造に対するfinite frequency kernelの計算. 地球惑星科学関連学会2008年合同大会, 2008
  • Masayuki Obayashi, Hiroko Sugioka, Junko Yoshimitsu, Yoshio Fukao. Slow anomalies oceanward of subducting slabsat the 410-km discontinuity. 地球惑星科学関連学会2008年合同大会, 2008
  • Masayuki Obayashi, Junko Yoshimitsu, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Hitoshi Kawakatsu, Azusa Shito, Claudia Adam, Shuichi Kodaira, Koichiro Obana, Toshihiko Kanazawa, Yoshio Fukao. P-wave mantle tomography with a focus on the Western Pacific obtained from traveltime and relative traveltime data. 地球惑星科学関連学会2008年合同大会, 2008
  • 南太平洋スーパープルームの全体像. 日本地震学会2007年度秋季大会, 2007
  • Masayuki Obayashi, Junko Yoshimitsu, Yoshio Fukao. Stagnant slab configuration in the vicinity of the 660-km discontinuity. IUGG General Assembly 2007, 2007
  • Masayuki Obayashi, Satoru Tanaka, Junko Yoshimitsu, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Toshihiko Kanazawa, Yoshio Fukao, Guilhem Barroul. P-wave mantle tomography with a focus on the South Pacific superswell obtained from traveltime and relative traveltime data. IUGG General Assembly 2007, 2007
  • Masayuki Obayashi, Satoru Tanaka, Junko Yoshimitsu, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Toshihiko Kanazawa, Yoshio Fukao, Guilhem Barroul. P-wave mantle tomography with a focus on the South Pacific superswell obtained from traveltime and relative traveltime data. 地球惑星科学関連学会2007年合同大会, 2007
  • Masayuki Obayashi, Hiroko Sugioka, Junko Yoshimitsu, Yoshio Fukao. High temperature oceanward of subducting slabs at the 410-km discontinuity. SEDI 2006, 2006
  • Masayuki Obayashi, Hiroko Sugioka, Junko Yoshimitsu, Yoshio Fukao. High temperature and hydrus melt oceanward of subducting slabs at the 410-km discontinuity. International session "Deep Mantle Slab", 2006 JGU Meeting, 2006
  • Masayuki Obayashi, Junko Yoshimitsu, Yoshio Fukao. Stagnant slab configuration in the vicinity of the 660-km discontinuity. International session "Deep Mantle Slab", 2006 JGU Meeting, 2006
  • 吉光 淳子,大林 政行 , 深尾 良夫 , 東野 陽子 , 末次 大輔. 2003年11月12日紀伊半島南東沖深発地震で観測されたS-P変換波について. 地球惑星科学関連学会2004年合同大会, 2004

Poster presentation(Belonging to JAMSTEC)

  • Masayuki Obayashi, Junko Yoshimitsu, Yoshio Fukao. Mantle discontinuities oceanward of the Krile - Honshu slab. JpGU-AGU Joint Meeting 2020, 2020
  • Masayuki Obayashi, Junko Yoshimitsu, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Yasushi Ishihara, Satoru Tanaka, Takashi Tonegawa and Takumi Kobayashi. P-wave upper mantle structures beneath the Ontong Java Plateau. American Geophysical Union 2019 fall neeting, 2019
  • Masayuki Obayashi, Takayuki Miyoshi, Junko Yoshimitsu. Toward adjoint tomography of the large low seismic velocity provinces beneath the western Pacific Ocean. 日本地震学会2019年度秋季大会, 2019
  • M. Obayashi, J. Yoshimitsu, D. Suetsugu, S. Hajime, H. Sugioka, A. Ito, T. Isse, Y. Ishihara, S. Tanaka, T. Tonegawa, T. Kobayashi.. P-wave Velocity Structures beneath the Ontong Java Plateau. 27th IUGG General Assembly, 2019
  • Misaki Horiuchi, Hiroko Sugioka, Masayuki Obayashi, Daisuke Suetsugu, Hajime Shiobara, Aki Ito, Yasushi Ishihara, Satoru Tanaka1, Takehi Isse, Takashi Tonegawa, Junko Yoshimitsu, Takumi Kobayashi. Finite frequency S wave tomography model beneath the Ontong Java Plateau using data recorded by broadband ocean bottom seismographs. 日本地球惑星科学連合2019年大会, 2019
  • M Obayashi, T Miyoshi, and J Yoshimitsu. Toward adjoint tomography of the large low seismic velocity provinces beneath the western Pacific Ocean. Misasa 2019 & CMC 国際シンポジウム, 2019
  • Satoru Tanaka, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Yasushi Ishihara, Masayuki Obayashi, Takashi Tonegawa, Junko Yoshimitsu, Takumi Kobayashi. Shear wave splitting observed in the Ontong Java Plateau and adjacent regions. JpGU2018, 2018
  • Masayuki Obayashi, Yoshio Fukao, Junko Yoshimitsu. Unusually deep Bonin earthquake (M7.9) of May 30, 2015 near the junction of the northern and southern Bonin slabs. 日本地球惑星科学連合2016年大会, 2016
  • Masayuki Obayashi, Yoshio Fukao, Junko Yoshimitsu. Unusually Deep Bonin Earthquake (M7.9) of May 30, 2015 Suggests that Stagnant Slab Transforms into Penetration Stage. AGU Fall Meeting 2015, 2015
  • Junko Yoshimitsu, Masayuki Obayashi, Hiroko Sugioka, Aki Ito, Takehi Isse, Hajime Shiobara, Daisuke Suetsugu. P-wave velocity anomalies of the plume beneath the French Polynesia. IUGG 2015 General Assembly, 2015
  • Masayuki Obayashi, Hitoshi Kawakatsu, Satoru Tanaka, F. Niu, Y. Chen, J. Ning, S. Grand, J. Ni, Junko Yoshimitsu. Stagnant Honshu slab and its implication for Japan Sea Opening and off-arc volcanism. IUGG 2015 General Assembly, 2015
  • OBAYASHI Masayuki , YOSHIMITSU Junko ; SUGIOKA Hiroko ; ITO Aki ; ISSE Takehi ; SHIOBARA Hajime ; SUETSUGU Daisuke. P-wave velocity anomalies of the plume beneath the French Polynesia. JPGU 2015, 2015
  • Masayuki Obayashi, Junko Yoshimitsu ,Hiroko Sugioka, Aki Ito , Takehi Isse , Hajime Shiobara , Daisuke Suetsugu. P-wave velocity anomalies of the plume beneath the French Polynesia. EGU General Assembly 2015, 2015