Towards remote monitoring of submarine volcanic activities(Fostering Joint International Research)

• Project/Area Number: 15KK0177
• Research Category: Fund for the Promotion of Joint International Research (Fostering Joint International Research)
• Allocation Type: Multi-year Fund
• Research Field: Natural disaster / Disaster prevention science
• Research Institution: Kobe University (2016-2019); Japan Agency for Marine-Earth Science and Technology (2015)
• Principal Investigator: Sugioka Hiroko 神戸大学, 海洋底探査センター, 教授 (00359184)
• Project Period (FY): 2016 – 2019
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
• Keywords: 離島火山活動 / 海底火山活動 / リモートモニタリング / 水中音波 / 津波 / 海底火山 / 海域観測 / グローバル地震学 / 離島火山 / 海底地震観測 / 海洋島火山 / 離島火山活動観測

Outline of Final Research Achievements

Towards remote monitoring of submarine volcanic activities, we have been successful in two following approaches; (1) Establishment of a platform for access to the CTBTO global network data: a virtual data center (vDEC) openly provides us with access to the CTBTO/IMS data, which can also act as a platform for the data processing useful to detect unknown hydroacoustic events; (2) Installation of an autonomous mid-column oceanic float hydrophones: MERMAID is a revolutionary submarine "drone" with hydrophone originally conceived by SImons and Nolet at Princeton University in 2002, which can detect the seismic data to transfer in real time via Iridium satellite. The 50 MERMAIDs were deployed to form a wide array in the South Pacific in 2018-2019 under an international collaboration project between French, U.S., China, and Japan to image, in detail, the massive mantle plume in the lower mantle regarding to the South Pacific Super Plume. They can observe with autonomous drifting for 6 years.

Academic Significance and Societal Importance of the Research Achievements

世界における活動的火山の三割は島嶼にあり、その殆どは環太平洋上の海底成層火山である。成層火山は形状上から津波発生ポテンシャルが高い。2018年のアナククラカトウ島火山で発生した津波がコンサート会場を襲い、多くの犠牲者を出しこたとは記憶に新しい。
火山性津波は地震性のそれとは異なり予測が極めて困難であり、災害防止には活動推移の常時監視に基づく事前予測が必須である。本研究では、海域火山活動の常時監視に有用な火山性水中音波観測の国際共有基盤を構築した。海洋観測技術力を有する海洋立国として、また防災先進国として、同じ環太平洋火山帯に在る諸国とリアルタイムで監視情報を共有することによる波及効果は大きい。

Research Products

• [Int'l Joint Research] アメリカ海洋大気庁(NOAA)(米国) (2018)
• [Int'l Joint Research] 包括的核実験禁止条約機構（CTBTO）(オーストリア) (2017)
• [Journal Article] Detection of Ocean Internal Tide Source Oscillations on the Slope of Aogashima Island, Japan (2019)
  • Author(s): Fukao Y.、Miyama T.、Tono Y.、Sugioka H.、Ito A.、Shiobara H.、Yamashita M.、Varlamov S.、Furue R.、Miyazawa Y.
  • Journal Title: Journal of Geophysical Research: Oceans Volume: 124 Issue: 7 Pages: 4918-4933
  • DOI: 10.1029/2019jc014997
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Shallow Nonvolcanic Tremor Activity and Potential Repeating Earthquakes in the Chile Triple Junction: Seismic Evidence of the Subduction of the Active Nazca?Antarctic Spreading Center (2019)
  • Author(s): Saez, M., S. Ruiz, S. Ide, and H. Sugioka
  • Journal Title: Seismological Research Letters Volume: 90 Pages: 1740-1747
  • DOI: 10.1785/0220180394
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Event Size Distribution of Shallow Tectonic Tremor in the Nankai Trough (2019)
  • Author(s): Nakano Masaru、Yabe Suguru、Sugioka Hiroko、Shinohara Masanao、Ide Satoshi
  • Journal Title: Geophysical Research Letters Volume: 46 Issue: 11 Pages: 5828-5836
  • DOI: 10.1029/2019gl083029
  • Peer Reviewed / Open Access
• [Journal Article] Surface wave tomography for the Pacific Ocean incorporating seafloor seismic observations and plate thermal evolution (2019)
  • Author(s): Isse Takehi、Kawakatsu Hitoshi、Yoshizawa Kazunori、Takeo Akiko、Shiobara Hajime、Sugioka Hiroko、Ito Aki、Suetsugu Daisuke、Reymond Dominique
  • Journal Title: Earth and Planetary Science Letters Volume: 510 Pages: 116-130
  • DOI: 10.1016/j.epsl.2018.12.033
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Configuration and structure of the Philippine Sea Plate off Boso, Japan: constraints on the shallow subduction kinematics, seismicity, and slow slip events (2019)
  • Author(s): Ito Aki、Tonegawa Takashi、Uchida Naoki、Yamamoto Yojiro、Suetsugu Daisuke、Hino Ryota、Sugioka Hiroko、Obana Koichiro、Nakahigashi Kazuo、Shinohara Masanao
  • Journal Title: Earth, Planets and Space Volume: 71 Issue: 1 Pages: 111-111
  • DOI: 10.1186/s40623-019-1090-y
  • NAID: 120006767925
  • Peer Reviewed / Open Access
• [Journal Article] Sueface wave tomgraphy for the Pacific Ocean incorporating seafloor seismic observations and plate thermal evolution (2019)
  • Author(s): Isse, T., H. Kawakatsu, K. Yoshizawa, A. Takeo, H. Shiobara, H. Sugioka, A. Ito, D. Suetsugu, D. Reymond
  • Journal Title: Earth and Planetary Science Letters Volume: 510 Pages: 116-130
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Giant rhyolite lava dome formation after 7.3 ka supereruption at Kikai caldera, SW Japan (2018)
  • Author(s): Yoshiyuki Tatsumi, Keiko Suzuki-Kamata, Tetsuo Matsuno, Hiroshi Ichihara, Nobukazu Seama, Koji Kiyosugi, Reina Nakaoka, Kazuo Nakahigashi, Hideaki Takizawa, Kazuki Hayashi, Tatsuro Chiba, Satoshi Shimizu, Mamoru Sano, Hikaru Iwamaru
  • Journal Title: Scientific Reports Volume: 2753 Issue: 1
  • DOI: 10.1038/s41598-018-21066-w
  • NAID: 120006394637
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Mechanism of the 2015 volcanic tsunami earthquake near Torishima, Japan (2018)
  • Author(s): Fukao Yoshio、Sandanbata Osamu、Sugioka Hiroko、Ito Aki、Shiobara Hajime、Watada Shingo、Satake Kenji
  • Journal Title: Science Advances Volume: 4 Issue: 4 Pages: 1-10
  • DOI: 10.1126/sciadv.aao0219
  • NAID: 120006466553
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The OJP array: seismological and electromagnetic observation on seafloor and islands in the Ontong Java Plateau (2018)
  • Author(s): Suetsugu, D., H. Shiobara, H. Sugioka, N. Tada, A. Ito, T. Isse, K. Baba, H. Ichihara, T. Ohta, Y. Ishihara, S. Tanaka, M. Obayashi, T. Tonegawa, J. Yoshimitsu, T. Kobayashi, H. Utada
  • Journal Title: JAMSTEC Report of Research and Development Volume: 26 Issue: 0 Pages: 54-64
  • DOI: 10.5918/jamstecr.26.54
  • NAID: 130006725610
  • ISSN: 1880-1153, 2186-358X
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Traveltime delay relative to the maximum energy of the wave train for dispersive tsunamis propagating across the Pacific Ocean: the case of 2010 and 2015 Chilean Tsunamis (2018)
  • Author(s): Poupardin, A, P. Heinrich, H. Hebert, F. Schindele, A. Jamelot, D. Reymond, H. Sugioka
  • Journal Title: Geophysical Journal of International Volume: - Issue: 3 Pages: 1538-1555
  • DOI: 10.1093/gji/ggy200
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Development of Slow Earthquake Database (2018)
  • Author(s): Kano, M., N. Aso, S. Annoura, R. Arai, K. Chao, K. Heki, S. Itaba, Y. Ito, N. Kamaya, T. Maeda, J. Maury, M. Nakamura, T. Nishimura, K. Obana, H. Sugioka, R. Takagi, T. Takahashi, A. Takeo, Y. Tu, N. Uchida, Y. Yamashita, T. Matsuzawa, S. Ide and K. Obara
  • Journal Title: Seismol. Res. Lett. Volume: 89(4) Issue: 4 Pages: 1566-1575
  • DOI: 10.1785/0220180021
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] In-situ characterization of the lithosphere-asthenosphere system beneath NW Pacific Ocean via broadband dispersion survey with two OBS array (2018)
  • Author(s): Takeo, A., H. Kawakatsu, T. Isse, K. Nishida, H. Shiobara, H. Sugioka, A. Ito, H. Utada
  • Journal Title: Geochemistry Geophysics Geosystem Volume: - Issue: 9 Pages: 3529-3539
  • DOI: 10.1029/2018gc007588
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Location and Seasonal Variation of Transoceanic Infragravity Waves Observed at an Absolute Pressure Gauge Array (2017)
  • Author(s): Tonegawa, T., Y. Fukao, H. Shiobara, H. Sugioka, A. Ito, and M. Yamashita
  • Journal Title: Journal of Geophysical Research: Oceans Volume: 122 Issue: 1 Pages: 40-52
  • DOI: 10.1002/2017jc013488
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Ray Tracing for Dispersive Tsunamis and Source Amplitude Estimation Based on Green’s Law: Application to the 2015 Volcanic Tsunami Earthquake Near Torishima, South of Japan (2017)
  • Author(s): Sandanbata Osamu、Watada Shingo、Satake Kenji、Fukao Yoshio、Sugioka Hiroko、Ito Aki、Shiobara Hajime
  • Journal Title: Pure and Applied Geophysics Volume: 175 Issue: 4 Pages: 1371-1385
  • DOI: 10.1007/s00024-017-1746-0
  • Peer Reviewed / Open Access
• [Journal Article] Determination of intrinsic attenuation in the oceanic lithosphere-asthenosphere system (2017)
  • Author(s): Takeuchi Nozomu、Kawakatsu Hitoshi、Shiobara Hajime、Isse Takehi、Sugioka Hiroko、Ito Aki、Utada Hisashi
  • Journal Title: Science Volume: 358 Issue: 6370 Pages: 1593-1596
  • DOI: 10.1126/science.aao3508
  • Peer Reviewed
• [Journal Article] Continuous seismic monitoring of Nishinoshima volcano, Izu-Ogasawara, by using long-term ocean bottom seismometers (2017)
  • Author(s): Shinohara Masanao、Ichihara Mie、Sakai Shin’ichi、Yamada Tomoaki、Takeo Minoru、Sugioka Hiroko、Nagaoka Yutaka、Takagi Akimichi、Morishita Taisei、Ono Tomozo、Nishizawa Azusa
  • Journal Title: Earth, Planets and Space Volume: 69 Issue: 1 Pages: 159-168
  • DOI: 10.1186/s40623-017-0747-7
  • NAID: 120006486826
  • Peer Reviewed / Open Access
• [Journal Article] Tomographic image of crust and upper mantle off the Boso Peninsula using data from an ocean-bottom seismograph array (2017)
  • Author(s): Ito Aki、Yamamoto Yojiro、Hino Ryota、Suetsugu Daisuke、Sugioka Hiroko、Nakano Masaru、Obana Koichiro、Nakahigashi Kazuo、Shinohara Masanao
  • Journal Title: Earth, Planets and Space Volume: 69 Issue: 1
  • DOI: 10.1186/s40623-017-0703-6
  • NAID: 120006360179
  • Peer Reviewed / Open Access
• [Journal Article] Upper boundaries of the Pacific and Philippine Sea plates near the triple junction off the Boso Peninsula deduced from ocean-bottom seismic observations (2017)
  • Author(s): Ito, A., H. Sugioka, K. Obana, R. Hino, D. Suetsugu, K. Nakahigashi, M. Shinohara, M. Nakano and Y. Yamamoto
  • Journal Title: Earth Planets Space Volume: 69 Issue: 1 Pages: 30-30
  • DOI: 10.1186/s40623-017-0608-4
  • NAID: 120006360180
  • Peer Reviewed / Open Access
• [Journal Article] Mantle transition zone beneath a normal seafloor in the northwestern Pacific: Electrical conductivity, seismic thickness, and water content (2017)
  • Author(s): Matsuno, T., D. Suetsugu, K. Baba, N. Tada, H. Shimizu, H. Shiobara, T. Isse, H. Sugioka, A. Ito, M. Obayashi, and H. Utada
  • Journal Title: Earth Planetary Science Letters Volume: 462 Pages: 189-198
  • DOI: 10.1016/j.epsl.2016.12.045
  • Peer Reviewed
• [Presentation] Finite frequency S wave tomography model beneath the Ontong Java Plateau using data recorded by broadband ocean bottom seismographs (2019)
  • Author(s): Misaki Horiuchi, Hiroko Sugioka, Masayuki Obayashi, Daisuke Suetsugu, Hajime Shiobara, Aki Ito, Yasushi Ishihara, Satoru Tanaka, Takehi Isse, Takashi Tonegawa, Junko Yoshimitsu, Takumi Kobayashi
  • Organizer: Japan Geoscience Union Meeting 2019
  • Int'l Joint Research
• [Presentation] Installation of a floating hydrophone system within the SOFAR channel (2019)
  • Author(s): Hiroko Sugioka, Masayuki Obayashi
  • Organizer: Japan Geoscience Union Meeting 2019
  • Int'l Joint Research
• [Presentation] New Constraints on Seismological Structures of the Oceanic Asthenospher (2019)
  • Author(s): Nozomu Takeuchi, Hitoshi Kawakatsu, Hajime Shiobara, Takehi Isse, Hiroko Sugioka, Aki Ito, Hisashi Utada
  • Organizer: Japan Geoscience Union Meeting 2019
  • Int'l Joint Research
• [Presentation] Shear wave structure of the upper mantle beneath the Ontong Java Plateau (2019)
  • Author(s): Takehi Isse, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Yasushi Ishihara, Satoru Tanaka, Masayuki Obayashi, Takashi Tonegawa, Junko Yoshimitsu, Takumi Kobayashi, Kazunori Yoshizawa
  • Organizer: Japan Geoscience Union Meeting 2019
  • Int'l Joint Research
• [Presentation] これまでのKOBEC鬼界カルデラ航海・研究のまとめ (2019)
  • Author(s): 島伸和,松野哲男,清杉孝司,清水賢,中岡礼奈,鈴木桂子,瀬戸康友,佐野守,森田結子,井和丸光,両角春寿,堀内美咲,西村公宏,市原寛,林和輝,廣瀬時,金子克哉,山口寛登,沖園雄希,杉岡裕子,中東和夫,山本揚二朗,香田達也,小平秀一,巽好幸
  • Organizer: Japan Geoscience Union Meeting 2019
• [Presentation] チリ三重会合点におけるMR18-06'EPIC'航海レグ2調査概要 (2019)
  • Author(s): 木下正高,岩森光,西川友章,安間了,Lagarrigue Sofia,阿部なつ江,横山由香,Espinosa Andres,Cortes Alessandra,Prado Gabriela,Bascuan Ivan,原口悟,太田耕輔,折橋裕二,中尾魁史,沼田翔伍,塩原肇,杉岡裕子,伊藤亜妃,Prez-Estay Nicolas
  • Organizer: Japan Geoscience Union Meeting 2019
• [Presentation] 海中浮遊ロボットMERMAIDによる地震観測 (2019)
  • Author(s): Masayuki Obayashi, Hiroko Sugioka
  • Organizer: Japan Geoscience Union Meeting 2019
• [Presentation] 海底地震観測を用いた鬼界カルデラで発生する地震活動 (2019)
  • Author(s): 戸康友,杉岡裕子,山本揚二朗,高橋努
  • Organizer: Japan Geoscience Union Meeting 2019
• [Presentation] 鬼界カルデラのMT観測データの解析 (2019)
  • Author(s): 廣瀬時,松野哲男,島伸和,沖園雄希,市原寛,杉岡裕子,巽好幸
  • Organizer: Japan Geoscience Union Meeting 2019
• [Presentation] 鬼界カルデラ下の3次元電気比抵抗構造探査 (2019)
  • Author(s): 松野哲男,廣瀬時,沖園雄希,島伸和,市原寛,杉岡裕子,巽好幸
  • Organizer: Japan Geoscience Union Meeting 2019
• [Presentation] 漂流フロートによる津波起因水中圧力変化観測 (2019)
  • Author(s): 大林政行,綿田辰吾,杉岡裕子
  • Organizer: Japan Geoscience Union Meeting 2019
• [Presentation] P-wave Velocity Structures beneath the Ontong Java Plateau (2019)
  • Author(s): M. Obayashi,J. Yoshimitsu,D. Suetsugu,H. Shiobara,H. Sugioka,A. Ito,T. Isse,Y. Ishihara,S. Tanaka,T. Tonegawa,T. Kobayashi
  • Organizer: The 27th IUGG General Assembly
  • Int'l Joint Research
• [Presentation] Surface Wave Tomography for the Pacific Ocean Incorporating Seafloor Seismic Observations and Plate Thermal Evolution (2019)
  • Author(s): T. Isse,H. Kawakatsu,K. Yoshizawa,A. Takeo,H. Shiobara,H. Sugioka,A. Ito,D. Suetsugu,D. Reymond
  • Organizer: The 27th IUGG General Assembly
  • Int'l Joint Research
• [Presentation] New Era of Ocean Bottom Broadband Seismology with Penetrator Sensor System of the Autonomous BBOBS-NX (NX-2G) (2019)
  • Author(s): H. Shiobara,A. Ito,H. Sugioka,M. Shinohara
  • Organizer: The 27th IUGG General Assembly
  • Int'l Joint Research
• [Presentation] Ocean Bottom Electromagnetometers Recorded Signals Possibly Associated with Eruptive and Non-eruptive Events of Nishinoshima Island Volcano, Japan (2019)
  • Author(s): K. Baba,N. Tada,H. Ichihara,Y. Hamano,H. Sugioka,T. Koyama,A. Takagi,M. Takeo
  • Organizer: The 27th IUGG General Assembly
  • Int'l Joint Research
• [Presentation] A new floatlng hydrophone instrument in the SOFAR channel (2019)
  • Author(s): H. Sugioka,M. Obayashi
  • Organizer: The 27th IUGG General Assembly
  • Int'l Joint Research
• [Presentation] Continuous imaging of the subducting Pacific plate under Japan using receiver function analysis of the amphibious array data (2019)
  • Author(s): HyeJeong Kim,Hitoshi Kawakatsu,Takeshi Akuhara,Masanao Shinohara,Hajime Shiobara,Hiroko Sugioka,Ryota Takagi
  • Organizer: AGU Fall Meeting 2019
  • Int'l Joint Research
• [Presentation] Mobile Earthquake Recording in Marine Areas by Independent Divers:New features-and Results from SPPIM, its First Big Deployment in the South Pacific (2019)
  • Author(s): Yann Hello,Joel D Simon,Yongshun John Chen,Masayuki Obayashi\,,Hiroko Sugioka,Olivier Philippe,Frederik Simons,Guust Nolet
  • Organizer: AGU Fall Meeting 2019
  • Int'l Joint Research
• [Presentation] P-wave upper mantle structures beneath the Ontong Java Plateau (2019)
  • Author(s): Masayuki Obayashi,Junko Yoshimitsu,Daisuke Suetsugu,Hajime Shiobara,Hiroko Sugioka,Aki Ito,Takehi Isse,Yasushi Ishihara,Satoru Tanaka,Takashi Tonegawa,Takumi Kobayashi
  • Organizer: AGU Fall Meeting 2019
  • Int'l Joint Research
• [Presentation] Shear wave upper mantle structure beneath the Ontong Java Plateau (2019)
  • Author(s): Takahi 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,Takumi Kobayashi
  • Organizer: AGU Fall Meeting 2019
  • Int'l Joint Research
• [Presentation] Inversion of Longer Period OBS Waveforms for P Structures in the Oceanic Lithosphere and Asthenosphere (2019)
  • Author(s): Nozomu Takeuchi,Hitoshi Kawakatsu,Hajime Shiobara,Takehi Isse,Hiroko Sugioka,Aki Ito,Hisashi Utada
  • Organizer: AGU Fall Meeting 2019
  • Int'l Joint Research
• [Presentation] Remote monitoring of island volcanic activities using an autonomous vehicle of the Wave Glider (2018)
  • Author(s): Sugioka, H., Y. Hamano, M. Ichihara, N. Tada, K. Nishida, M. Takeo
  • Organizer: Japan Geoscience Union Meeting 2018
• [Presentation] Acoustic monitoring of an island volcano using Wave Glider: A test operation at Nishinoshima, Japan (2018)
  • Author(s): Ichihara, M., H. Sugioka, K. Nishida, N. Tada, M. Takeo, Y. Hamano
  • Organizer: Japan Geoscience Union Meeting 2018
• [Presentation] Seismic attenuation in the mantle beneath the Ontong Java Plateau from multiple ScS waves (2018)
  • Author(s): Suetsugu, D. H. Shiobara, H. Sugioka, A. Ito. T. Isse, Y. Ishihara. S. Tanaka, M. Obayashi, T. Tonegawa, J. Yoshimitsu, T. Kobayashi
  • Organizer: Japan Geoscience Union Meeting 2018
  • Int'l Joint Research
• [Presentation] The OJP array: Seismological and electromagnetic observation on seafloor and islands in the Ontong Java Plateau (2018)
  • Author(s): Suetsugu, D., H. Shiobara, H. Sugioka, N. Tada, A. Ito, T. Isse, K. Baba, H. Ichihara, T. Ota, Y. Ishihara, S. Tanaka, M. Obayashi, T. Tonegawa, J. Yoshimitsu, T. Kobayashi, H. Utada
  • Organizer: Japan Geoscience Union Meeting 2018
  • Int'l Joint Research
• [Presentation] Generation and propagation of T-waves associated with underwater volcanic activities (2018)
  • Author(s): Sugioka, H. R. Bras
  • Organizer: Japan Geoscience Union Meeting 2018
  • Int'l Joint Research
• [Presentation] Development of Slow Earthquake Database (2018)
  • Author(s): Kano, M., N. Aso, T. Matsuzawa, S. Ide, S. Annoura, R. Arai, S. Baba, M. Bostock, K. Chao, K. Heki, S. Itaba, Y. Ito, N. Kamaya, T. Maeda, J. Maury, M. Nakamura, T. Nishimura, K. Obana, K. Ohta, N. Poiata, B. Rousset, H. Sugioka, R. Takagi, T. Takahashi, A. Takeo, Y. Tu, N. Uchida, Y. Yamashita, K. Obara
  • Organizer: Japan Geoscience Union Meeting 2018
  • Int'l Joint Research
• [Presentation] Toward complete tomography of the Earth’s interior with floating robotic acoustic sensors in the oceans: the EarthScope-Oceans (2018)
  • Author(s): Obayashi, M., H. Sugioka, H. Shiobara
  • Organizer: Japan Geoscience Union Meeting 2018
  • Int'l Joint Research
• [Presentation] Multifrequency P-wave tomography of Ontong Java Plateau (2018)
  • Author(s): Obayashi, M., J. Yoshimitsu, D. Suetsugu, H. Shiobara, H. Sugioka, A. Ito, T. Isse, Y. Ishihara, S. Tanaka, T. Tonegawa, T. Kobayashi
  • Organizer: Japan Geoscience Union Meeting 2018
  • Int'l Joint Research
• [Presentation] sPL waves observed by the OJP array in the Ontong Java Plateau (2018)
  • Author(s): Kobayashi, M., M. Ukawa, Y. Fukao, D. Suetsugu, H. Shiobara, H. Sugioka, A. Ito, T. Isse, Y. Ishihara, S. Tanaka, M. Obayashi
  • Organizer: Japan Geoscience Union Meeting 2018
  • Int'l Joint Research
• [Presentation] Discordance between P- and S-wave tomography models using ISC (2018)
  • Author(s): Horiuchi, M., H. Sugioka, M. Obayashi
  • Organizer: Japan Geoscience Union Meeting 2018
  • Int'l Joint Research
• [Presentation] Determination of Intrinsic Attenuation in the OceanicLithosphere-Asthenosphere System (2018)
  • Author(s): Takeuchi, N., H. Kawakatsu, H. Shiobara, T. Isse, H. Sugioka, A. Ito, H. Utada
  • Organizer: Japan Geoscience Union Meeting 2018
  • Int'l Joint Research
• [Presentation] Shear wave splitting observed in the Ontong Java Plateau and adjacent regions (2018)
  • Author(s): Tanaka, S., D. Suetsugu, H. Shiobara, H. Sugioka, A. Ito, T. Isse, Y. Ishihara, M. Obayashi, T. Tonegawa, J. Yoshimitsu, T. Kobayashi
  • Organizer: Japan Geoscience Union Meeting 2018
  • Int'l Joint Research
• [Presentation] Retrieval of converted phases from shallow structure of the Ontong Java Plateau (2018)
  • Author(s): Tonegawa, T. D. Suetsugu, S. Miura, H. Shiobara, H. Sugioka, A. Ito, T. Isse, Y.i Ishihara, S. Tanaka, M. Obayashi, J. Yoshimitsu, T. Kobayashi
  • Organizer: Japan Geoscience Union Meeting 2018
  • Int'l Joint Research
• [Presentation] Upper mantle structure beneath the Pacific Ocean revealed from seafloor and land broadband seismic observations (2018)
  • Author(s): Takehi Isse;Hajime Shiobara;Hitoshi Kawakatsu;Kazunori Yoshizawa;Hiroko Sugioka*;Aki Ito;Daisuke Suetsugu
  • Organizer: Japan Geoscience Union Meeting 2018
  • Int'l Joint Research
• [Presentation] Mechanism of volcanic tsunami earthquakes Part II: Tsunami analysis (2018)
  • Author(s): Fukao, Y., Sandanbata, O., H. Sugioka, A. Ito, H. Shiobara, S. Watada, K. Satake
  • Organizer: Japan Geoscience Union Meeting 2018
• [Presentation] Mechanism of volcanic tsunami earthquakes Part II: Tsunami analysis (2018)
  • Author(s): Sandanbata, O., S. Watada, K. Satake, Y. Fukao, H. Sugioka, A. Ito, H. Shiobara
  • Organizer: Japan Geoscience Union Meeting 2018
• [Presentation] Noise removal from vertical component seismograms recorded by broadband ocean bottom seismometers (2018)
  • Author(s): Kawano, Y., T. Isse, H. Kawakatsu, H. Shiobara, H. Sugioka
  • Organizer: Japan Geoscience Union Meeting 2018
  • Int'l Joint Research
• [Presentation] The First Data of the Autonomous BBOBS-NX (NX-2G) for New Era of Ocean Bottom Broadband Seismology (2018)
  • Author(s): Shiobara, H., A. Ito, H. Sugioka, M. Shinohara
  • Organizer: American Geophysical Union Fall Meeting 2018
  • Int'l Joint Research
• [Presentation] Event size distribution of shallow tectonic tremor in the Nankai trough (2018)
  • Author(s): Masaru Nakano;Suguru Yabe;Hiroko Sugioka*;Satoshi Ide
  • Organizer: American Geophysical Union Fall Meeting 2018
  • Int'l Joint Research
• [Presentation] Non-Volcanic Tremor activity in the Chile Triple Junction detected by OBS stations (2018)
  • Author(s): Saez, M., S. Ruiz, S. Ide, H. Sugioka
  • Organizer: American Geophysical Union Fall Meeting 2018
  • Int'l Joint Research
• [Presentation] Receiver function imaging at the crust and uppermost mantle of Ontong Java Plateau (2018)
  • Author(s): Tonegawa, T. D. Suetsugu, S. Miura, H. Shiobara, H. Sugioka, A. Ito, T. Isse, Y.i Ishihara, S. Tanaka, M. Obayashi, J. Yoshimitsu, T. Kobayashi
  • Organizer: American Geophysical Union Fall Meeting 2018
  • Int'l Joint Research
• [Presentation] Surface wave tomography for the Pacific Ocean incorporating seafloor seismic observations and its age-dependence (2018)
  • Author(s): Isse, T., H. Kawakatsu, K. Yoshizawa, A. Takeo, H. Shiobara, H. Sugioka, A. Ito, D. Suetsugu, D. Reymond
  • Organizer: American Geophysical Union Fall Meeting 2018
  • Int'l Joint Research
• [Presentation] Seafloor detection of multiple aseismic transients with an intervening seismic shock at the Izu-Bonin Trench (2018)
  • Author(s): Fukao, Y., H. Sugioka, A. Ito, M. Yamashita, T. Tonegawa, H. Shiobara
  • Organizer: American Geophysical Union Fall Meeting 2018
  • Int'l Joint Research
• [Presentation] Tsunami Source Modeling for the 2015 Volcanic Tsunami Earthquake Near Torishima, South of Japan (2018)
  • Author(s): Sandanbata, O., S. Watada, K. Satake, Y. Fukao, H. Sugioka, A. Ito, H. Shiobara
  • Organizer: Asia Oceania Geosciences Society 15th Annual Meeting
  • Int'l Joint Research
• [Presentation] 浅部低周波微動のサイズ－頻度分布 (2018)
  • Author(s): 中野 優, 矢部 優, 杉岡 裕子, 井出 哲
  • Organizer: 日本地震学会2018年度秋季大会
• [Presentation] オントン・ジャワ海台下のP波速度構造 (2018)
  • Author(s): 大林 政行, 吉光 淳子, 末次 大輔, 塩原 肇, 杉岡 裕子, 伊藤 亜妃, 一瀬 建日, 石原 靖, 田中 聡, 利根川 貴志, 小林 拓史
  • Organizer: 日本地震学会2018年度秋季大会
• [Presentation] 小笠原海溝沿いの地震を伴う海底地殻変動 (2018)
  • Author(s): 深尾 良夫, 伊藤 亜紀, 山下 幹也, 利根川 貴史, 杉岡 裕子, 塩原 肇, 東野 陽子
  • Organizer: 日本地震学会2018年度秋季大会
• [Presentation] P波波形を用いた海洋アセノスフェアの構造推定 (2018)
  • Author(s): 竹内 希, 川勝 均, 塩原 肇, 一瀬 建日, 杉岡 裕子, 伊藤 亜妃, 歌田 久司
  • Organizer: 日本地震学会2018年度秋季大会
• [Presentation] Toward standardization of slow earthquake catalog -Development of database website- (2017)
  • Author(s): Kano, M., N. Aso, S. Annoura, R. Arai, Y. Ito, N. Kamaya, J. Maury, M. Nakamura, T. Nishimura, K. Obana, H. Sugioka, R. Takagi, T. Takahashi, A. Takeo, Y. Yamashita, S. Ide, K. Obara
  • Organizer: 2017 AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Tsunami Source Modeling of the 2015 Volcanic Tsunami Earthquake near Torishima, South of Japan (2017)
  • Author(s): Sandanbata, O., S. Watada, K. Satake, Y. Fukao, H. Sugioka, A. Ito, H. Shiobara
  • Organizer: 2017 AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Possibility of tilt observation at the seafloor by a mobile ocean bottom seismometer (2017)
  • Author(s): Shiobara, H., A. Ito, H. Sugioka, Y. Fukao, M. Shinohara
  • Organizer: IAG-IASPEI 2017
  • Int'l Joint Research
• [Presentation] Upper mantle structure beneath the Pacific Ocean revealed by land and seafloor broadband (2017)
  • Author(s): Isse, T., ;H. Shiobara, K. Yoshizawa, H. Kawakatsu, H. Sugioka, A. Ito, D. Suetsugu, H. Utada
  • Organizer: IAG-IASPEI 2017
  • Int'l Joint Research
• [Presentation] Mantle transition zone beneath a normal seafloor in the northwestern Pacific: Electrical conductivity, seismic thickness, and water content (2017)
  • Author(s): Matsuno, T., D. Suetsugu, K. Baba, N. Tada, H. Shimizu, H. Shiobara, T. Isse, H. Sugioka, A. Ito, M. Obayashi, H. Utada
  • Organizer: IAG-IASPEI 2017
  • Int'l Joint Research
• [Presentation] Seasonality of fin whale “Balaenoptera Physalus” call interval obtained from ocean bottom seismic observation system in Northeast Japan (2017)
  • Author(s): Yoshida, R., H. Kato, M. Kyo, H. Sugioka
  • Organizer: OCEANS 2017
  • Int'l Joint Research
• [Presentation] Upper mantle structure beneath the Pacific Ocean revealed by land and seafloor broadband observations (2017)
  • Author(s): 一瀬 建日, 塩原 肇, 吉澤 和範, 川勝 均, 杉岡 裕子, 伊藤 亜妃, 末次 大輔, 歌田 久司
  • Organizer: JpGU-AGU Joint Meeting 2017
• [Presentation] 分散性を考慮した津波波線追跡と初期海面変動の推定：2015年スミスカルデラ地震への適用 (2017)
  • Author(s): 三反畑 修, 綿田 辰吾, 佐竹 健治, 深尾 良夫, 杉岡 裕子, 伊藤 亜妃, 塩原 肇
  • Organizer: JpGU-AGU Joint Meeting 2017
• [Presentation] 太平洋を横断する海洋外部重力波の発生場所とその季節変化 (2017)
  • Author(s): 利根川 貴志, 深尾 良夫, 塩原 肇, 杉岡 裕子, 伊藤 亜妃, 山下 幹也
  • Organizer: JpGU-AGU Joint Meeting 2017
• [Presentation] 自律動作の高性能広帯域海底地震計(NX-2G)の開発:動作試験報告 (2017)
  • Author(s): 塩原 肇, 伊藤 亜妃, 杉岡 裕子, 篠原 雅尚
  • Organizer: JpGU-AGU Joint Meeting 2017
• [Presentation] Upper mantle structure beneath the Ontong Java Plateau from measurements of body wave differential travel times (2017)
  • Author(s): 小林 拓史, 末次 大輔, 大林 政行, 杉岡 裕子
  • Organizer: JpGU-AGU Joint Meeting 2017
• [Presentation] Brief overview of landing survey and seismic observation at Nishinoshima (2017)
  • Author(s): 武尾 実, 大湊 隆雄, 市原 美恵, 前野 深, 金子 隆之, 篠原 雅尚, 馬場 聖至, 西田 究, 安田 敦, 渡邊 篤志, 杉岡 裕子, 浜野 洋三, 多田 訓子, 中野 俊, 吉本 充宏, 川上 和人, 千田 智基, 高木 朗充, 長岡 優
  • Organizer: JpGU-AGU Joint Meeting 2017
• [Presentation] 火山島活動の周辺の海からの観測の重要性について (2017)
  • Author(s): 浜野 洋三, 杉岡 裕子, 市原 美恵
  • Organizer: JpGU-AGU Joint Meeting 2017
• [Presentation] 西之島周辺での離島火山モニタリングシステムの初めての運用 (2017)
  • Author(s): 浜野 洋三, 杉岡 裕子, 市原 美恵, 西田 究, 馬場 聖至, 多田 訓子
  • Organizer: JpGU-AGU Joint Meeting 2017
• [Presentation] 波源近傍における最低次及び極高調モードの内部潮汐波検出：JCOPE-T 海洋循環モデルとの比較 (2017)
  • Author(s): 深尾 良夫, 美山 透, 東野 陽子, 杉岡 裕子, 塩原 肇, 山下 幹也, Varlamov Sergey, 宮澤 泰正
  • Organizer: JpGU-AGU Joint Meeting 2017
• [Presentation] Regional-scale variation of the lithosphere-asthenosphere system beneath the old Pacific ocean basin revealed by NOMan seafloor array observation (2017)
  • Author(s): 竹尾 明子, 川勝 均, 一瀬 建日, 西田 究, 塩原 肇, 杉岡 裕子, 伊藤 亜妃, 歌田 久司
  • Organizer: JpGU-AGU Joint Meeting 2017
• [Presentation] 西之島周辺における長期海底地震観測 (2017)
  • Author(s): 篠原 雅尚, 市原 美恵, 酒井 慎一, 山田 知朗, 武尾 実, 杉岡 裕子, 長岡 優, 高木 朗充, 森下 泰成, 小野 智三, 西澤 あずさ
  • Organizer: JpGU-AGU Joint Meeting 2017
• [Presentation] 実体波の走時差から推定したオントンジャワ海台下の上部マントル構造 (2017)
  • Author(s): 小林 拓史, 末次 大輔, 大林 政行, 杉岡 裕子
  • Organizer: 地震学会2017年度秋季大会
• [Presentation] 広帯域海底地震計鉛直成分におけるノイズ除去の予備的解析 (2017)
  • Author(s): 川野 由貴, 一瀬 建日, 川勝 均, 杉岡 裕子
  • Organizer: 地震学会2017年度秋季大会
• [Presentation] 海底面での機動的傾斜観測実現に向けたBBOBST-NXでの長期試験観測 (2017)
  • Author(s): 塩原 肇, 篠原 雅尚, 伊藤 亜妃, 日野 亮太, 佐藤 利典, 杉岡 裕子
  • Organizer: 地震学会2017年度秋季大会
• [Presentation] スロー地震カタログの標準化に向けて-データベースの整備- (2017)
  • Author(s): 加納 将行, 麻生 尚文, 案浦 理, 新井 隆太, 伊藤 喜宏, 鎌谷 紀子, Julie Maury, 中村 衛, 西村 卓也, 尾鼻 浩一郎, 杉岡 裕子, 高木 涼太, 高橋 努, 竹尾 明子, 山下 裕亮, 松澤 孝紀, 井出 哲, 小原 一成
  • Organizer: 地震学会2017年度秋季大会
• [Presentation] 2015年鳥島近海における火山性地震の津波波源モデル (2017)
  • Author(s): 三反畑 修, 綿田 辰吾, 佐竹 健治, 深尾 良夫, 杉岡 裕子, 伊藤 亜妃, 塩原 肇
  • Organizer: 地震学会2017年度秋季大会
• [Presentation] 海底電位磁力計が捉えた西之島火山下のマグマ上昇を示唆する二つの独立シグナル (2017)
  • Author(s): 馬場 聖至, 小山 崇夫, 武尾 実, 多田 訓子, 浜野 洋三, 杉岡 裕子, 市原 寛, 高木 朗充
  • Organizer: 日本火山学会2017年秋季大会
• [Remarks] EARTHSCOPE OCEANS
  • URL: http://geoweb.princeton.edu/people/simons/earthscopeoceans/
• [Remarks] Scientific American
  • URL: https://www.scientificamerican.com/article/aquatic-robot-braves-volcanoes-and-typhoons-to-detect-tsunamis/
• [Remarks] 神戸大学プレスリリース
  • URL: http://www.kobe-u.ac.jp/NEWS/research/2016_11_22_01.html
• [Remarks] ASCII
  • URL: http://ascii.jp/elem/000/000/995/995029/
• [Remarks] 東京大学地震研究所プレスリリース
  • URL: http://www.eri.u-tokyo.ac.jp/wp-content/uploads/2016/10/7885529b08745f338dfb10ee9c653268.pdf