Oikawa Jun

オイカワジュン | Oikawa Jun

Affiliation and department：
Job title： Assistant Professor

Research field (1)： Solid earth science

Research theme for competitive and other funds (12)：

2015 - 2018 Development of penetrator probe for volcano monitoring deployed from unmanned aerial vehicle
2009 - 2011 Imaging magma plumbing system using InSAR analyses with corner reflectors
2008 - 2010 Study on real-time volcanic explosivity index
2004 - 2006 Study of magma ascent mechanism in conduit based on continuous microgravity and electromagnetic observation
2003 - 2006 Monitoring of the volcanic fluid system and elucidation of the deep-magma ascent mechanism at Aso volcano

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Papers (42)：

Hidefumi Watanabe, Tsuneomi Kagiyama, Shiko Sakashita, Jun Oikawa, Takao Ohminato, Etsuro Koyama, Hiroshi Tsuji, Hiroshi Munekane, Seiji Matsushita, Michinori Hagiwara, et al. Seismic Exploration at Izu-Oshima Volcano with Active Sources in 1999 : Outline of Experiment and Three-dimensional Seismic Velocity Structure Obtained from First Arrival Time Data. Bulletin of Earthquake Research Institute, the University of Tokyo. 2024. 98. 1-29
Yasuhisa Tajima, Jun Oikawa, Tetsuo KobayashiI, Atsushi Yasuda. Middle to Long-Term Magma Producing Activities and the Plumbing System of Shinmoedake, Kirishima Volcano: Toward a Unified Understanding Based on Volcanic Products Analyses and Geophysical Observations. Bulletin of the Volcanological Society of Japan. 2022. 67. 1. 45-68
Jun Oikawa, Satoru Tanaka, Tsuneomi Kagiyama, Hiroki Miyamachi, Tomoki Tsutsui, Yasushi Ikeda, Hiroaki Katayama, Norimichi Matsuo, Hiromitsu Oshima, Yuichi Nishimura, et al. Active-source Seismic Exploration of Fuji Volcano in 2003. Bulletin of the Earthquake Research Institute, University of Tokyo. 2021. 96. 1-10
Miyo Fukui, Takeshi Matsushima, Natsumi Yumitori, Jun Oikawa, Atsushi Watanabe, Takashi Okuda, Taku Ozawa, Yuhki Kohno, Yousuke Miyagi. Pressure sources of the Miyakejima volcano estimated from crustal deformation studies during 2011-2013. International Association of Geodesy Symposia. 2017. 145. 117-123
Taishi Yamada, Hiroshi Aoyama, Takeshi Nishimura, Hiroshi Yakiwara, Haruhisa Nakamichi, Jun Oikawa, Masato Iguchi, Muhamad Hendrasto, Yasa Suparman. Initial phases of explosion earthquakes accompanying Vulcanian eruptions at Lokon-Empung volcano, Indonesia. Journal of Volcanology and Geothermal Research. 2016. 327. 310-321

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MISC (27)：

Masayuki Murase, Yoshiko Yamanaka, Yuta Maeda, Haengyoong Kim, Shinichiro Horikawa, Haruno Koike, Satoshi Takewaki, Misaki Asai, Takeshi Matsushima, Kazunari Uchida, et al. Vertical Deformation Detected by the Precise Levelling Survey after the 2014 Mt. Ontake Eruption (2021-2023). 2023
S. Nakao, Y. Morita, H. Yakiwara, J. Oikawa, H. Uyeda, H. Takahashi, Y. Ohta, T. Matsushima, M. Iguchi. Volum change of inflation source observed by wide area GNSS network in Kirishima Volcano. 2023. 143-143
Jun-ichiro Ishibashi, Tomoharu Miyamoto, Takeshi Matsushima, Toshiro Yamanaka, Kei Ikehata, Jun Oikawa, Yasuhisa Tajima. Time series change of hot spring water chemistry after 2018 eruption at Kirishima Iwoyama (Part 4). 2023. 141-141
Jun Oikawa, Yasuhisa Tajima. Depth of source of volcanic ash ejected in the 2018 vulcanian eruptions at Shinmoe-dake and the image of eruption site below the summit crater. 2023. 71-71
Jun Oikawa, Yasuhisa Tajima. Variation with time and depth of b value of volcanic earthquakes associated with the 2008 Shinmoe-dake eruption. 2023

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Lectures and oral presentations (11)：

Depth of source of volcanic ash ejected in the 2018 vulcanian eruptions at Shinmoe-dake and the image of eruption site below the summit crater
(2023)
Time series change of hot spring water chemistry after 2018 eruption at Kirishima Iwoyama (Part 4)
(2023)
Volum change of inflation source observed by wide area GNSS network in Kirishima Volcano
(2023)
Vertical Deformation Detected by the Precise Levelling Survey after the 2014 Mt. Ontake Eruption (2021-2023)
(2023)
Variation with time and depth of b value of volcanic earthquakes associated with the 2008 Shinmoe-dake eruption
(2023)

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Professional career (1)：

Doctor of Science (The University of Tokyo)

Work history (3)：

2007/04 - 現在 The University of Tokyo Earthquake Research Institute Assistant Professor
1993/11 - 2007/03 The University of Tokyo Earthquake Research Institute Assistant Professor
1992/04 - 1993/11 The University of Tokyo

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