Kyosuke Okamoto

Profile Information

Affiliation: 研究員, 再生可能エネルギー研究センター地熱チーム, 国立研究開発法人産業技術総合研究所

Degree: Ph.D.(Kyoto University)

ORCID ID: https://orcid.org/0000-0002-0400-4194
J-GLOBAL ID: 201801017488588212
researchmap Member ID: B000327919

Research Interests

Research Areas

Research History

Apr, 2022 - Present

National Institute of Advanced Industrial Science and Technology
Apr, 2017 - Present

Researcher, Renewable Energy Research Center, Advanced Industrial Science and Technology
Apr, 2014 - Mar, 2017

Researcher, Center for Railway Earthquake Engineering Research, Railway Technical Research Institute

Education

Apr, 2010 - Mar, 2014

Civil and Earth Resources Engineering, Graduate School of Engineering, Kyoto University
Apr, 2006 - Mar, 2010

Global Engineering, Faculty of Engineering, Kyoto University

Awards

Papers

Estimation of an ultra-high-temperature geothermal reservoir model in the Kakkonda geothermal field, northeastern Japan

Yota Suzuki, Takashi Akatsuka, Yusuke Yamaya, Norihiro Watanabe, Kyosuke Okamoto, Kazumi Osato, Tatsuya Kajiwara, Yasuo Ogawa, Toru Mogi, Noriyoshi Tsuchiya, Hiroshi Asanuma

Geothermics, 105 102525-102525, Nov, 2022 Peer-reviewed
3-D resistivity imaging of the supercritical geothermal system in the Sengan geothermal region, NE Japan

Yusuke Yamaya, Yota Suzuki, Yasuaki Murata, Kyosuke Okamoto, Norihiro Watanabe, Hiroshi Asanuma, Hideaki Hase, Yasuo Ogawa, Toru Mogi, Keiichi Ishizu, Toshihiro Uchida

Geothermics, 103 102412-102412, Jul, 2022 Peer-reviewed
Structures and fluid flows inferred from the microseismic events around a low-resistivity anomaly in the Kakkonda geothermal field, Northeast Japan

Kyosuke Okamoto, Kazutoshi Imanishi, Hiroshi Asanuma

Geothermics, 100 102320-102320, Dec, 2021 Peer-reviewed
Fluid activity detection in geothermal areas using a single seismic station by monitoring horizontal-to-vertical spectral ratios

Kyosuke Okamoto, Hiroshi Asanuma, Hiro Nimiya

Scientific Reports, 11(1), Dec, 2021 Peer-reviewed
Activation and inactivation of seismicity: The terminations of two injection tests in Okuaizu Geothermal Field, Japan

Kyosuke Okamoto, Li Yi, Hiroshi Asanuma, Takashi Okabe, Yasuyuki Abe, Masatoshi Tsuzuki

Seismological Research Letters, 91(5) 2730-2743, Sep, 2020 Peer-reviewed
Development of temperature prediction method for supercritical geothermal resources using neural networks

KOBAYASHI Yosuke, SUGIMOTO Ken, SAITO Ryoichi, NAGANO Koji, ISHITSUKA Kazuya, MOGI Toru, SUZUKI Koichi, WATANABE Norihiro, YAMAYA Yusuke, OKAMOTO Kyosuke, ASANUMA Hiroshi, KAZIWARA Tatsuya

Proceedings of the Annual Conference of JSAI, 2020 1N4GS1302-1N4GS1302, 2020
Geological and engineering features of developing ultra-high-temperature geothermal systems in the world

Kyosuke Okamoto, Hiroshi Asanuma, Takuya Ishibashi, Yusuke Yamaya, H. Saishu, N. Yanagisawa, Toru Mogi, Noriyoshi Tsuchiya, Atsushi Okamoto, Shigemi Naganawa, Y. Ogawa, Kazuya Ishitsuka, Yasuhiro Fujimitsu, K. Kitamura, Tatsuya Kajiwara, S. Horimoto, Kuniaki Shimada

Geothermics, 82 267-281, Nov, 2019 Peer-reviewed
Accuracy improvement in the estimation of epicentral distance inferred from initial P-waves by considering local heterogeneity

Kyosuke Okamoto, Seiji Tsuno

Exploration Geophysics, 50(2) 159-171, Mar 4, 2019 Peer-reviewed
Triggering processes of microseismic events associated with water injection in Okuaizu Geothermal Field, Japan

Kyosuke Okamoto, Li Yi, Hiroshi Asanuma, Takashi Okabe, Yasuyuki Abe, Masatoshi Tsuzuki

Earth, Planets and Space, 70(1), Dec 1, 2018 Peer-reviewed
Numerical Studies of Effects of Dipping Structures on Horizontal/Vertical Spectral Ratios

Kyosuke Okamoto, Seiji Tsuno

Pure and Applied Geophysics, 175(8) 2837-2852, Aug 1, 2018 Peer-reviewed
High-resolution microseismic monitoring for water injection in Okuaizu Geothermal Field, Japan

Kyosuke Okamoto, Li Yi, Hiroshi Asanuma, Takashi Okabe, Yasuyuki Abe, Masatoshi Tsuzuki

22nd International Symposium on Recent Advances in Exploration Geophysics, RAEG 2018, May 24, 2018
Local site effects in Kumamoto City revealed by the 2016 Kumamoto earthquake 2016 Kumamoto earthquake sequence and its impact on earthquake science and hazard assessment Manabu Hashimoto, Martha Savage, Takuya Nishimura and Haruo Horikawa 4. Seismology

Seiji Tsuno, Masahiro Korenaga, Kyosuke Okamoto, Hiroaki Yamanaka, Kosuke Chimoto, Takeshi Matsushima

Earth, Planets and Space, 69(1), Dec 1, 2017 Peer-reviewed
Development of the earthquake information distribution system for railway

Shunroku Yamamoto, Naoyasu Iwata, Kyosuke Okamoto, Kimitoshi Sakai

Japanese Railway Engineering, 2017-April(196) 20-21, Apr, 2017 Peer-reviewed
Investigation on relationship between epicentral distance and growth curve of initial P-wave propagating in local heterogeneous media for earthquake early warning system Seismology

Kyosuke Okamoto, Seiji Tsuno

Earth, Planets and Space, 67(1), Dec 1, 2015 Peer-reviewed
Temporal variation in subsurface stress estimated from seismic scattering

K. Okamoto, H. Mikada, T. Goto, J. Takekawa

76th European Association of Geoscientists and Engineers Conference and Exhibition 2014: Experience the Energy - Incorporating SPE EUROPEC 2014, 2141-2145, 2014 Peer-reviewed
Numerical analysis of the relationship between time-variant coda-Q and the variation in crustal stress

Kyosuke Okamoto, Hitoshi Mikada, Tada Nori Goto, Junichi Takekawa

Geophysical Journal International, 195(1) 575-581, Oct, 2013 Peer-reviewed
Seismic scattering change in an inelastic cracked medium

Kyosuke Okamoto, Ru shan Wu, Hitoshi Mikada, Tada nori Goto, Junichi Takekawa

SEG Technical Program Expanded Abstracts, 32 2910-2915, 2013 Peer-reviewed
Utilization of waveform for estimating stress change in Time

K. Okamoto, H. Mikada, T. Goto, J. Takekawa

75th European Association of Geoscientists and Engineers Conference and Exhibition 2013 Incorporating SPE EUROPEC 2013: Changing Frontiers, 4100-4104, 2013 Peer-reviewed
Stress field monitoring using seismic scattering

Kyosuke Okamoto, Hitoshi Mikada, Tada Nori Goto, Junichi Takekawa

Society of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012, SEG 2012, 4387-4391, 2012
Numerical studies on stress field monitoring using Coda-Q

Kyosuke Okamoto, Hitoshi Mikada, Tada nori Goto, Junichi Takekawa

SEG Technical Program Expanded Abstracts, 30(1) 4229-4233, Jan, 2011 Peer-reviewed

Misc.

A game of geothermal resources exploration in FREA open house 2017

村田泰章, 浅沼宏, ウィディアトモジョアリフ, 石川慧, 石原武志, 易利, 石橋琢也, 内田洋平, 大月文恵, 岡本京祐, 片山泰樹, 桑名栄司, 最首花恵, 柴田由美子, シュレスタガウラブ, 土屋由美子, 牧野雅彦, 柳澤教雄, 山谷祐介, 渡邉教弘

GSJ地質ニュース = GSJ chishitsu news, 7(2) 58-60, Feb, 2018
熊本平野で展開した臨時地震観測とその地震動特性

津野靖士, 是永将宏, 山中浩明, 地元孝輔, 岡本京祐, 山田伸之, 三宅弘恵, 松島健

地盤震動シンポジウム, 45th 24‐33, Nov, 2017
Improvement of Earthquake Early Warning System for Railways Considering Locality of P-wave Propagation

岡本京祐, 津野靖士

鉄道総研報告 = RTRI report : 鉄道総合技術論文誌, 31(7) 11-16, Jul, 2017
Structural survey and seismic observation performed in Hokusetsu area(Part2) Local site effects evaluated by seismic data

津野靖士, 是永将宏, 岡本京祐

公益社団法人物理探査学会学術講演会講演論文集 = Proceedings of the SEGJ Conference, 137 217-220, 2017
Effects of the shallow subsurface structures on the ground motion characteristics in Kumamoto Plain north-south survey line

是永将宏, 津野靖士, 山中浩明, 地元孝輔, 山田伸之, 岡本京祐

公益社団法人物理探査学会学術講演会講演論文集 = Proceedings of the SEGJ Conference, 137 209-212, 2017
Study on factors of microseismic events following injection into a geothermal field using analyses of hypocenter clusters and seismic scattering waves

岡本京祐, 易利, 浅沼宏

公益社団法人物理探査学会学術講演会講演論文集 = Proceedings of the SEGJ Conference, 137 201-204, 2017
Investigation on passive imaging methods of geothermal reservoirs by using the microearthquake event

137 191-194, 2017
2016年熊本地震余震観測と微動アレー探査による熊本平野南北測線の地震動特性評価

是永将宏, 津野靖士, 岡本京祐, 地元孝輔, 山中浩明, 山田伸之, 松島健

日本地球惑星科学連合大会予稿集(Web), 2017 ROMBUNNO.SCG70‐12 (WEB ONLY), 2017
熊本平野南北測線での2016年熊本地震の余震観測と地震動特性評価

是永将宏, 津野靖士, 岡本京祐, 山中浩明, 地元孝輔, 松島健

日本地震学会秋季大会講演予稿集, 2016 244, Sep 16, 2016
Development of an Earthquake Information Distribution System for Railways

山本俊六, 岩田直泰, 坂井公俊, 岡本京祐

鉄道総研報告 = RTRI report : 鉄道総合技術論文誌, 30(5) 41-46, May, 2016
Estimation on rupture locations contributing to an excessive velocity response (2-3sec.) in the Kanto region at the time of the 2011 off the Pacific coast of Tohoku Earthquake

岡本京祐, 津野靖士

公益社団法人物理探査学会学術講演会講演論文集 = Proceedings of the SEGJ Conference, 135 41-44, 2016
Temporal seismic observation of the 2016 Kumamoto earthquake and the subsurface structural survey along a north-south line in the Kumamoto Plain

是永将宏, 津野靖士, 岡本京祐, 地元孝輔, 山中浩明, 山田伸之

公益社団法人物理探査学会学術講演会講演論文集 = Proceedings of the SEGJ Conference, 135 23-26, 2016
Microtremor array exploration at temporary strong motion stations of the 2016 Kumamoto Earthquake

地元孝輔, 山中浩明, 津野靖士, 是永将宏, 岡本京祐, 三宅弘恵, 山田伸之

公益社団法人物理探査学会学術講演会講演論文集 = Proceedings of the SEGJ Conference, 135 19-22, 2016
Rapid estimation of epicentral distance by growing initial P-wave considering regionally different heterogeneities

岡本京祐, 津野靖士

公益社団法人物理探査学会学術講演会講演論文集 = Proceedings of the SEGJ Conference, 133 71-74, 2015
Microtremor exploration for a shallow layer of dipping structures

岡本京祐, 津野靖士, 岩田直泰

公益社団法人物理探査学会学術講演会講演論文集 = Proceedings of the SEGJ Conference, 132 1-4, 2015
地震前後のQ値変化と地殻応力の関係性

岡本京祐, 三ケ田均, 後藤忠徳, 武川順一

日本地震学会秋季大会講演予稿集, 2013 97, Oct 1, 2013
Variation of Crustal stress field inferred from seismic scattering

OKAMOTO Kyosuke, MIKADA Hitoshi, GOTO Tada-nori, TAKEKAWA Junichi

物理探査学会学術講演会講演論文集 = Proceeding of the SEGJ Conference, 128 71-74, Jun 13, 2013
Numerical study on relationship between seismic scattering and crustal stress

OKAMOTO Kyosuke, MIKADA Hitoshi, GOTO Tada-nori, TAKEKAWA Junichi

物理探査学会学術講演会講演論文集 = Proceeding of the SEGJ Conference, 127 1-4, Nov 29, 2012
Coda‐Q値モニタリングによる地殻応力場推定に関する基礎的研究

岡本京祐, 三ケ田均, 後藤忠徳, 武川順一

日本地震学会秋季大会講演予稿集, 2011 130, Oct 1, 2011
平成23年度(前期)海外渡航旅費助成金報告書

岡本京祐

日本地震学会ニュースレター : News letter, 23(3) 53-54, Sep 10, 2011

Professional Memberships

Research Projects

微小地震観測に基づく伊豆半島東部地域の地熱システムの評価

日本学術振興会若手研究, Apr, 2021 - Mar, 2025
列車振動を用いた不整形地盤の探査手法の開発

若手研究(B), 日本学術振興会, Apr, 2016 - Mar, 2018

岡本京祐
地震波散乱現象の観測による地域応力場変化推定法の研究

特別研究員奨励費, 日本学術振興会, Apr, 2012 - Mar, 2014

岡本京祐

Industrial Property Rights

特開2017-142196 表層地盤増幅特性を考慮した、P波初動立ち上がりによる震央距離推定方法

岡本京祐, 津野靖士
特開2016-217997 地震波P波初動の傾きを用いた震央距離推定方法

岡本京祐, 津野靖士

Media Coverage

地熱、熱水検出で新技術産総研常時微動から推定

電気新聞, May, 2021 Newspaper, magazine
産業技術総合研究所、地下の熱水を検出、振動センサー活用。

日本経済新聞, https://www.nikkei.com/article/DGKKZO71507380Q1A430C2TJM000/, May, 2021 Newspaper, magazine
地下熱水の流れ即時検出産総研地熱資源開発など応用

日刊工業新聞, https://www.nikkan.co.jp/articles/view/00596954, Apr, 2021 Newspaper, magazine
地熱発電適地の推定手法を発見郡山の産総研

福島民報, Apr, 2021 Newspaper, magazine
産総研熱水モニタリング開発地熱発電資源把握に寄与

日刊産業新聞, Apr, 2021 Newspaper, magazine
地下水観測に新手法小さな揺れから検出産総研地熱発電の効率化期待

福島民友, Apr, 2021 Newspaper, magazine
人が感じないごく小さな揺れの成分解析から地熱発電に利用可能な熱水の流動を検出－地熱発電などの深部地下開発時の新たなモニタリング技術－

JPubb（WEB）, www.jpubb.com/press/2721717/, Apr, 2021 Internet

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