Tokyo Institute of Technology   Volcanic Fluid Research Center   Professor

2001.1 - 2023.3

Geological Survey of Canada visiting scientist

1993 - 1995

Geological Survey of Japan, AIST

1983.4 - 2000.12

American Geophysical Union

THE GEOTHERMAL RESEARCH SOCIETY OF JAPAN

Earth, Planets and Space誌   Editor in Chief  

2013.1 - 2020.12   

IAGA, Divison 1   Co-chair  

2011 - 2015   

特定非営利活動法人地学オリンピック日本委員会   理事  

2008   

草津白根山防災会議協議会   専門委員  

2008 - 2022   

IAGA working group 1.2   Chair  

2008 - 2012   

日本火山学会   各賞委員会委員  

2006 - 2008   

地震予知連絡会   委員  

2005.4 - 2017.3   

IAGA working group 1.2   Co-chair  

2004 - 2008   

地球電磁気地球惑星圏学会   運営委員  

2003 - 2008   

IAGA working group 1.2   committee member  

2002 - 2012   

日本火山学会   雑誌編集委員  

2002 - 2004   

IUGG Inter-Association WG   IAGA working group 1.2 liaison  

2001 - 2007   

地球電磁気・地球惑星圏学会   運営委員、編集委員  

1999 - 2005   

Uplift of the central transantarctic mountains Reviewed

Phil Wannamaker, Graham Hill, John Stod, Virginie Maris, Yasuo Ogawa, Kate Selway, Goran Boren, Edward Bertrand, Daniel Uhlmann, Bridget Ayling, A. Marie Green, Daniel Feuch

Nature Communications   8 ( 1 )   2017

Electrical image of subduction zone beneath northeastern Japan Reviewed

Masahiro Ichiki, Yasuo Ogawa, Toshiki Kaida, Takao Koyama, Makoto Uyeshima, Tomotsugu Demachi, Satoshi Hirahara, Yoshimori Honkura, Wataru Kanda, Toshio Kono, Masaki Matsushima, Takashi Nakayama, Syuichi Suzuki, Hiroaki Toh

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH   120 ( 12 )   7937 - 7965   2015.12

Three-dimensional magnetotelluric imaging of crustal fluids and seismicity around Naruko volcano, NE Japan Reviewed

Yasuo Ogawa, Masahiro Ichiki, Wataru Kanda, Masaaki Mishina, Koichi Asamori

EARTH PLANETS AND SPACE   66   2014.12

A 3-D conductivity model of the Australian continent using observatory and magnetometer array data Reviewed

Liejun Wang, Adrian P. Hitchman, Yasuo Ogawa, Weerachai Siripunvaraporn, Masahiro Ichiki, Kiyoshi Fuji-ta

GEOPHYSICAL JOURNAL INTERNATIONAL   198 ( 2 )   1143 - 1158   2014.8

Electrical characterization of the North Anatolian Fault Zone underneath the Marmara Sea, Turkey by ocean bottom magnetotellurics Reviewed

Tuelay Kaya, Takafumi Kasaya, S. Buelent Tank, Yasuo Ogawa, M. Kemal Tuncer, Naoto Oshiman, Yoshimori Honkura, Masaki Matsushima

GEOPHYSICAL JOURNAL INTERNATIONAL   193 ( 2 )   664 - 677   2013.5

A model for observed circular polarized electric fields coincident with the passage of large seismic waves Reviewed

Y. Honkura, Y. Ogawa, M. Matsushima, S. Nagaoka, N. Ujihara, T. Yamawaki

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH   114   2009.10

Fluid and deformation regime of an advancing subduction system at Marlborough, New Zealand Reviewed

Philip E. Wannamaker, T. Grant Caldwell, George R. Jiracek, Virginie Maris, Graham J. Hill, Yasuo Ogawa, Hugh M. Bibby, Stewart L. Bennie, Wiebke Heise

NATURE   460 ( 7256 )   733 - U90   2009.8

Groundwater flow and hydrothermal systems within volcanic edifices: Delineation by electric self-potential and magnetotellurics Reviewed

Koki Aizawa, Yasuo Ogawa, Tsuneo Ishido

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH   114   2009.1

Melt distribution beneath a young continental rift: The Taupo Volcanic Zone, New Zealand Reviewed

Wiebke Heise, Hugh M. Bibby, Grant Caldwell, Stephen C. Bannister, Yasuo Ogawa, Shinichi Takakura, Toshihiro Uchida

GEOPHYSICAL RESEARCH LETTERS   34 ( 14 )   L14313   2007.7

Mid-crustal electrical conductors and their correlations to seismicity and deformation at Itoigawa-Shizuoka Tectonic Line, Central Japan Reviewed

Y Ogawa, Y Honkura

EARTH PLANETS AND SPACE   56 ( 12 )   1285 - 1291   2004

Magnetotelluric imaging of fluids in intraplate earthquake zones, NE Japan back arc

Yasuo Ogawa, Masaaki Mishina, Tadanori Goto, Hideyuki Satoh, Naoto Oshiman, Takafumi Kasaya, Yukie Takahashi, Tadashi Nishitani, Shin'Ya Sakanaka, Makoto Uyeshima, Yuji Takahashi, Yoshimori Honkura, Masaki Matsushima

Geophysical Research Letters   28 ( 19 )   3741 - 3744   2001.10

Wide-band magnetotelluric measurements across the Taupo Volcanic Zone, New Zealand - Preliminary results Reviewed

Y Ogawa, HM Bibby, TG Caldwell, S Takakura, T Uchida, N Matsushima, SL Bennie, T Tosha, Y Nishi

GEOPHYSICAL RESEARCH LETTERS   26 ( 24 )   3673 - 3676   1999.12

A two-dimensional magnetotelluric inversion assuming Gaussian static shift Reviewed

Yasuo Ogawa, Toshihiro Uchida

Geophysical Journal International   126 ( 1 )   69 - 76   1996

Two-Dimensional Modelling of Resistivity Structure Beneath the Tohoku District, Northern Honshu of Japan, by a Finite Element Method Reviewed

Yasuo Ogawa, Takesi Yukutake, Hisashi Utada

Journal of geomagnetism and geoelectricity   38 ( 1 )   45 - 79   1986

3D magnetotelluric inversion using an adaptive algebraic multi-resolution sampling approach

Jian Li, Jianxin Liu, Yasuo Ogawa, Rongwen Guo, Xulong Wang, Yongfei Wang, Keke Zhou, Jingdao Xu

Geophysics   90 ( 6 )   2025.11

Crustal fluids and their relation to seismic activities in the Nikko-Ashio area of Northeastern Japan inferred by electrical resistivity imaging

Usui, Y., Uyeshima, M., Shinya Sakanaka, Yusuke Yamaya, Ogawa, Y., Ichiki, M., Honkura, Y., Kuroki, H., Group for MT, observation arou, he Northern Kanto area

Tectonophysics   2025.10

Geofluid mapping reveals the connection between magmas, fluids, and earthquakes Reviewed

Hikaru Iwamori, Yasuo Ogawa, Tomomi Okada, Tohru Watanabe, Hitomi Nakamura, Tatsu Kuwatani, Kenji Nagata, Atsushi Suzuki, Masahiro Ichiki

Communications Earth & Environment   6 ( 1 )   2025.5

Application of the fast and robust bootstrap method to the uncertainty analysis of the magnetotelluric transfer function Reviewed

Yoshiya Usui, Makoto Uyeshima, Shin'ya Sakanaka, Tasuku Hashimoto, Masahiro Ichiki, Toshiki Kaida, Yusuke Yamaya, Yasuo Ogawa, Masataka Masuda, Takahiro Akiyama

Geophysical Journal International   242 ( 1 )   2025.5

Retrospective earthquake spatial forecasting: magnetotelluric insights into fluid-driven intraplate seismicity in northern Thailand from 1994 to 2024

Yasuo Ogawa

Earth, Planets and Space   2025

Interpretation of a 3D Magnetotellurics Model of the Aceh and Seulimeum Segments of the Sumatran Fault Zone Reviewed

Lisa Yihaa Roodhiyah, Nurhasan, Tiffany, Prihandhanu Mukti Pratomo, Anggie Susilawati, Supriyadi, Yasuo Ogawa, Didik Sugiyanto, Doddy Sutarno, Wahyu Srigutomo

Applied Sciences   14 ( 23 )   11335 - 11335   2024.12

Controlled-source electromagnetic survey in a volcanic area: relationship between stacking time and signal-to-noise ratio and comparison with magnetotelluric data Reviewed

Keiichi Ishizu, Yasuo Ogawa, Kuo Hsuan Tseng, Takahiro Kunitomo, Norihiro Kitaoka, Grant Caldwell, Takuto Minami, Sohei Serita, Hiroshi Ichihara, Edward Alan Bertrand, Wiebke Heise

Geophysical Journal International   240 ( 2 )   1107 - 1121   2024.12

Symposium on Volcanic Eruption, Disaster Prevention, and Tourism 2023 -Kusatsu-Shirane,Ontake, and Hakone volcanoes: Improving Communication during Volcanic Unrest Reviewed

Terada Akihiko, Ogawa Yasuo, Kim Haengyoong, Mannen Kazutaka, Ishizaka Tsunehisa, Bandai Yoshinobu, Ishizaki Yasuo, Kametani Nobuko, Sakamoto Mayumi

BULLETIN OF THE VOLCANOLOGICAL SOCIETY OF JAPAN   69 ( 2 )   87 - 98   2024.6

New robust remote reference estimator using robust multivariate linear regression Reviewed

Yoshiya Usui, Makoto Uyeshima, Shin'ya Sakanaka, Tasuku Hashimoto, Masahiro Ichiki, Toshiki Kaida, Yusuke Yamaya, Yasuo Ogawa, Masataka Masuda, Takahiro Akiyama

Geophysical Journal International   238 ( 2 )   943 - 959   2024.6

Three‐Dimensional Electrical Resistivity Structure Beneath a Strain Concentration Area in the Back‐Arc Side of the Northeastern Japan Arc Reviewed

Yoshiya Usui, Makoto Uyeshima, Hideaki Hase, Hiroshi Ichihara, Koki Aizawa, Takao Koyama, Shin'ya Sakanaka, Tsutomu Ogawa, Yusuke Yamaya, Tadashi Nishitani, Koichi Asamori, Yasuo Ogawa, Ryokei Yoshimura, Shinichi Takakura, Masaaki Mishina, Yuichi Morita

Journal of Geophysical Research: Solid Earth   129 ( 5 )   2024.5

Volcanic lightning reveals umbrella cloud dynamics of the 15 January 2022 Hunga volcano eruption, Tonga Reviewed

P. A. Jarvis, T. G. Caldwell, C. Noble, Y. Ogawa, C. Vagasky

Bulletin of Volcanology   86 ( 6 )   2024.5

Okataina Volcanic Centre, New Zealand: Magmatic, volcanological, structural, thermal, and geothermal evolution of an active caldera system—Introduction Reviewed

Cornel E.J. de Ronde, Ery C. Hughes, Yasuo Ogawa, Michael C. Rowe

Journal of Volcanology and Geothermal Research   448   108037 - 108037   2024.4

An electrical resistivity image of the Hikurangi Subduction Margin Reviewed

Heise W., Bertrand EA, Caldwell TG, Ogawa Y., Bannister S., Bennie SL, Hart, R., Kuo-Hsuan Tseng, Fukai M., Ishikawa M., Seki K., Nishizawa T., McGrath J.

Geophysical Journal International   Vol. 231 ( no. 2 )   1552 - 1564   2023.11

The Onset, Middle, and Climax of Precursory Hydrothermal Intrusion of the 2018 Phreatic Eruption at Kusatsu‐Shirane Volcano Reviewed

Taishi Yamada, Akihiko Terada, Rina Noguchi, Wataru Kanda, Hideki Ueda, Hiroshi Aoyama, Takahiro Ohkura, Yasuo Ogawa, Toshikazu Tanada

Journal of Geophysical Research: Solid Earth   128 ( 11 )   2023.10

Special issue “20th anniversary issue: earth, planetary, and space science in the next decade” Reviewed

Yasuo Ogawa, Nozomu Nishitani, Masato Furuya, Valerio Acocella, Hauke Hussmann

Earth, Planets and Space   75 ( 1 )   2023.1

Magma-hydrothermal system of Kusatsu-Shirane volcano, Japan

A Terada, W Kanda, Y Ogawa, T Yamada, M Yamamoto, H Aoyama, T Ohkura, T Ohba, M Yaguchi, H Sumino, T Obase

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2023   68 - 68   2023

Correction to: Anatomy of active volcanic edifice at the Kusatsu–Shirane volcano, Japan, by magnetotellurics: hydrothermal implications for volcanic unrests (Earth, Planets and Space, (2020), 72, 1, (161), 10.1186/s40623-020-01283-2) Reviewed

Kuo Hsuan Tseng, Yasuo Ogawa, Nurhasan, Sabri Bülent Tank, Naoto Ujihara, Yoshimori Honkura, Akihiko Terada, Yoshiya Usui, Wataru Kanda

Earth, Planets and Space   74 ( 1 )   2022.12

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

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   2022.11

Author Correction: Trans-crustal structural control of CO₂-rich extensional magmatic systems revealed at Mount Erebus Antarctica (Nature Communications, (2022), 13, 1, (2989), 10.1038/s41467-022-30627-7)

Hill, G.J., Wannamaker, P.E., Maris, V., Stodt, J.A., Kordy, M., Unsworth, M.J., Bedrosian, P.A., Wallin, E.L., Uhlmann, D.F., Ogawa, Y., Kyle, P.

Nature Communications   13 ( 1 )   2022.7

3-D resistivity imaging of the supercritical geothermal system in the Sengan geothermal region, NE Japan Reviewed

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   2022.7

Special issue "Understanding phreatic eruptions - recent observations of Kusatsu-Shirane volcano and equivalents-" Reviewed

Ogawa, Yasuo, Ohba, Takeshi, Fischer, Tobias P., Yamamoto, Mare, Jolly, Art

Earth, Planets and Space   74 ( 1 )   2022

The 2018 phreatic eruption at Mt. Motoshirane of Kusatsu–Shirane volcano, Japan: eruption and intrusion of hydrothermal fluid observed by a borehole tiltmeter network Reviewed

Akihiko Terada, Wataru Kanda, Yasuo Ogawa, Taishi Yamada, Mare Yamamoto, Takahiro Ohkura, Hiroshi Aoyama, Tomoki Tsutsui, Shin’ya Onizawa

Earth, Planets and Space   73 ( 1 )   2021.12

Ability of the magnetotelluric method to image a deep conductor: Exploration of a supercritical geothermal system Reviewed

Keiichi Ishizu, Yasuo Ogawa, Toru Mogi, Yusuke Yamaya, Toshihiro Uchida

Geothermics   Vol. 96   102205 - 102205   2021.11

Simultaneous Analysis of Seismic Velocity and Electrical Conductivity in the Crust and the Uppermost Mantle: A forward Model and Inversion Based on Grid Search Reviewed

Iwamori, H, Ueki, K., Hoshide, T., Sakuma, H., Ichiki, M., Watanabe, T., Nakamura, M., Nakamura, H., Nishizawa, T., Nakao, A., Ogawa, Y., Kuwatani, T., Nagata, K., Okada, T., Takahashi, E

Journal of Geophysical Research: Solid Earth   126 ( 9 )   2021.9

Electrical resistivity structure around the Atotsugawa fault, central Japan, revealed by a new 2-D inversion method combining Wideband-MT and Network-MT datasets Reviewed

Yoshiya Usui, Makoto Uyeshima, Tsutomu Ogawa, Ryokei Yoshimura, Naoto Oshiman, Satoru Yamaguchi, Hiroaki Toh, Hideki Murakami, Koki Aizawa, Toshiya Tanbo, Yasuo Ogawa, Tadashi Nishitani, Shin’ya Sakanaka, Masaaki Mishina, Hideyuki Satoh, Tada‐nori Goto, Takafumi Kasaya, Toru Mogi, Yusuke Yamaya, Ichiro Shiozaki, Yoshimori Honkura

J. Geophys. Res., Solid Earth   126 ( 4 )   2021.2

Locating hydrothermal fluid injection of the 2018 phreatic eruption at Kusatsu-Shirane volcano with volcanic tremor amplitude Reviewed

Taishi Yamada, Aika K Kurokawa, Akihiko Terada, Wataru Kanda, Hideki Ueda, Hiroshi Aoyama, Takahiro Ohkura, Yasuo Ogawa, Toshikazu Tanada

Earth, Planets and Space   73 ( 1 )   2021.1

Probing the relationship between electrical conductivity and creep through upper crustal fluids along the western part of the North Anatolian Fault with three-dimensional magnetotellurics Reviewed

Karaş, M., Tank, S.B., Ogawa, Y., Oshiman, N., Matsushima, M., Honkura, Y.

Tectonophysics   791   228561 - 228561   2020.7

Temporal magnetotellurics reveals mechanics of the 2012 Mount Tongariro, NZ, eruption Reviewed

Graham J. Hill, Hugh M. Bibby, Jared Peacock, Erin L. Wallin, Yasuo Ogawa, Luca Caricchi, Harry Keys, Stewart L. Bennie, Yann Avram

Geophysical Research Letters   vol. 47 ( no. 8 )   2020.4

Air-fall ash from the main crater of asama volcano on august 7, 2019, and its water-soluble components Reviewed

Yaguchi, M., Terada, A., Ogawa, Y.

Journal of Disaster Research   15 ( 1 )   2020.2

Magmatic hydrothermal system inferred from the resistivity structure of Kusatsu-Shirane Volcano Reviewed

Matsunaga, Y., Kanda, W., Takakura, S., Koyama, T., Saito, Z., Seki, K., Suzuki, A., Kishita, T., Kinoshita, Y., Ogawa, Y.

Journal of Volcanology and Geothermal Research   390   2020

Using Magnetotelluric measurements to monitor the dynamic state of the Tongariro magmatic system during the 2012 eruptions Reviewed

G. Hill, H. Bibby, J. Peacock, E. Wallin, Y. Ogawa, L. Caricchi, H. Keys

2019.7

Role of Fluids in the earthquake generation: The Nagamachi-Rifu reverse fault, NE Honshu, Japan

Sabri Bulent Tank, Yasuo Ogawa

2019.5

"Earth, Planets and Space" An Open Access Journal: Past, Present and and Future Reviewed

小川 康雄, 馬場 聖至

2019.5

広帯域MT観測による東北日本前弧の地殻流体の三次元分布の解明

深井 雅斗, 小川 康雄, 曾 國軒, 市來 雅啓, 高倉 伸一

2019.5

Deep electrical conductivity structure of Eastern Marmara, Turkey by long period magnetotellurics Reviewed

Sabri Bulent Tank, Naoto Oshiman, Mustafa Karas, Ryokei Yoshimura, Yasuo Ogawa

2019.5

A 3-D crust and uppermost mantle electrical conductivity model of subduction zone beneath NE Japan Reviewed

市來 雅啓, 海田 俊輝, 小川 康雄

2019.5

Magnetotelluric images of Kusatsu-Shirane volcano, revisited by 3-D modeling with tetrahedral elements considered topography effect Reviewed

Kuo Hsuan Tseng, Yasuo Ogawa, Nurhassan, Sabri Bulent Tank, Akihiko Terada, Wataru Kanda, Masato Fukai

2019.5

Preliminary report on geothermal structure revealed by geological and MT surveys around Akayumatasawa river in Sanzugawa caldera, NE Japan Reviewed

布原 啓史, Kuo Hsuan Tseng, 岡野 広樹, 小川 康雄, 土屋 範芳

2019.5

Status of Japanese Supercritical Geothermal project in FY2018

Hiroshi Asanuma, Toru Mogi, Noriyoshi Tsuchiya, Noriaki Watanabe, Shigemi Naganawa, Yasuo Ogawa, Yasuhiro Fujimitsu, Tatsuya Kajiwara, Kazumi Osato, Kuniaki Shimada, Seiki Horimoto, Takashi Sato, Shigeto Yamada, Kimio Watanabe, Yoshiharu Gotoh

Transactions - Geothermal Resources Council   43   427 - 433   2019

Geological and engineering features of developing ultra-high-temperature geothermal systems in the world Reviewed

Okamoto, K., Asanuma, H., Ishibashi, T., Yamaya, Y., Saishu, H., Yanagisawa, N., Mogi, T., Tsuchiya, N., Okamoto, A., Naganawa, S., Ogawa, Y., Ishitsuka, K., Fujimitsu, Y., Kitamura, K., Kajiwara, T., Horimoto, S., Shimada, K.

Geothermics   82   pp. 267 - 281   2019

Marine magnetotelluric inversion with an unstructured tetrahedral mesh Reviewed

Yoshiya Usui, Takafumi Kasaya, Yasuo Ogawa, Hisanori Iwamoto

Geophysical Journal International   Vol. 214 ( 2 )   952 - 974   2018

Status report on the Japanese Supercritical Geothermal Project for FY2017

Hiroshi Asanuma, Toru Mogi, Noriyoshi Tsuchiya, Noriaki Watanabe, Shigemi Naganawa, Yasuo Ogawa, Yasuhiro Fujimitsu, Tatsuya Kajiwara, Kazumi Osato, Kuniaki Shimada, Seiki Horimoto, Takashi Sato, Tetsuya Ito, Shigeto Yamada, Kimio Watanabe, Yoshiharu Gotoh, Yutaka Nagasawa, Akira Kohyama

Transactions - Geothermal Resources Council   42   2366 - 2370   2018

Erratum: Author Correction: Uplift of the central transantarctic mountains (Nature communications (2017) 8 1 (1588)) Reviewed

Wannamaker, P., Hill, G., Stodt, J., Maris, V., Ogawa, Y., Selway, K., Boren, G., Bertrand, E., Uhlmann, D., Ayling, B., Green, A.M., Feucht, D.

Nature communications   9 ( 1 )   740 - 740   2018

Resistivity characterisation of Hakone volcano, Central Japan, by three-dimensional magnetotelluric inversion Reviewed

Usui, Yoshiya, Tani, Masanori, Yasuda, Yojiro, Suzuki, Takeshi, Higa, Tetsuya, Kawasaki, Shingo, Kamo, Masato, Yamazaki, Tomoya, Harada, Masatake, Honda, Ryou, Goto, Tada-nori, Hase, Hideaki, Komori, Shogo, Kanda, Wataru, Yukutake, Yohei, Ogawa, Yasuo, Yoshimura, Ryokei

Earth, Planets and Space   Vol. 70 ( 1 )   2018

Three Dimensional Modelling of Kharga Reservoir Water, New Valley Egypt, Using Magnetotelluric Data Reviewed

Mekkawi MM, Arafa-Hamed T., Amatykul P., Ogawa Y., Atya M.

Journal of Geology & Geophysics   Vol. 7   2017.12

Acknowledgement to reviewers in 2016 Reviewed

Yasuo Ogawa

Earth, Planets and Space   69 ( 1 )   2017.2

Mapping subduction interface coupling using magnetotellurics: Hikurangi margin, New Zealand Reviewed

H. Ichihara, E. A. Bertrand, S. Bannister, T. G. Caldwell, W. Heise, S. L. Bennie, Yasuo Ogawa

Geophysical Research Letters   44 ( 18 )   9261 - 9266   2017

Three-dimensional resistivity structure of Asama Volcano revealed by data-space magnetotelluric inversion using unstructured tetrahedral elements Reviewed

Tsuneomi Kagiyama, Yusuke Yamaya, Takao Koyama, Wataru Kanda, Koki Aizawa, Yoshiya Usui, Takeshi Hashimoto, Yasuo Ogawa

Geophysical Journal International   Volume 208 ( 3 )   1359 - 1372   2017

Wideband Magnetotelluric Measurements in the Western Part of Shikoku Island

YOSHIMURA Ryokei, YAMAZAKI Ken'ichi, OGAWA Yasuo, NAKAGAWA Jun, KAWASAKI Shingo, KOMATSU Shintaro, YONEDA Itaru, OUCHI Yuhei, OKAZAKI Tomohisa, SUZUKI Atsushi, SAITO Zenshiro, TERAISHI Masahiro

Disaster Prevention Reserch Institute Annuals. B   59 ( 59 )   57 - 61   2016.6

Gas pathways and remotely triggered earthquakes beneath Mount Fuji, Japan Reviewed

Ogawa, Yasuo, Rung-Arunwan, Tawat, Ohno, Masao, Kazahaya, Kohei, Takahashi, Masaaki, Takahashi, Hiroshi A., Hase, Hideaki, Yamaya, Yusuke, Uyeshima, Makoto, Sumino, Hirochika, Aizawa, Koki

Geology   44 ( 2 )   127 - 130   2016

Modeling geomagnetic induction hazards using a 3-D electrical conductivity model of Australia Reviewed International journal

Marina T. Costelloe, William V. Jones, Andrew M. Lewis, Liejun Wang, Yasuo Ogawa

Space Weather   Vol. 14 ( 12 )   1125 - 1135   2016

Resistivity structure and geochemistry of the Jigokudani Valley hydrothermal system, Mt. Tateyama, Japan Reviewed

Seki, Kaori, Kanda, Wataru, Tanbo, Toshiya, Ohba, Takeshi, Ogawa, Yasuo, Takakura, Shinichi, Nogami, Kenji, Ushioda, Masashi, Suzuki, Atsushi, Saito, Zenshiro, Matsunaga, Yasuo

Journal of Volcanology and Geothermal Research   325   15 - 26   2016

Crustal structure and fluid distribution beneath the southern part of the Hidaka collision zone revealed by 3-D electrical resistivity modeling Reviewed

Hiroshi Ichihara, Toru Mogi, Kengo Tanimoto, Yusuke Yamaya, Takeshi Hashimoto, Makoto Uyeshima, Yasuo Ogawa

Geochemistry, Geophysics, Geosystems   17 ( 4 )   1480 - 1491   2016

Structure of the Tongariro volcanic system: insights from magnetotelluric imaging Reviewed

Hill, G.J., Bibby, H.M., Ogawa, Y., Wallin, E.L., Bennie, S.L., Caldwell, T.G., Bertrand, E.A., Heise, W.

Earth Planet. Sci. Lett.   Vol. 432   115 - 125   2015.12

Editorial: Acknowledgement to reviewers Reviewed

Yasuo Ogawa

Earth, Planets and Space   67 ( 1 )   2015.9

東北地方太平洋沖地震前後の地殻比抵抗変動検出の試み

齋藤全史郎, 小川康雄, 長谷英彰, 神田 径, 本蔵義守, 日野裕太, 関 香織, 坂中伸也, 浅森浩一

CA研究会2015年度論文集   2015.8

Imaging the hydrothermal system beneath the Jigokudani valley, Tateyama volcano, Japan: Implications for structures controlling repeated phreatic eruptions from an audio-frequency magnetotelluric survey Reviewed

Seki, K., Kanda, W., Ogawa, Y., Tanbo, T., Kobayashi, T., Hino, Y., Hase, H.

Earth, Planets and Space   Vol. 67   2015.1

A 3-D electrical resistivity model beneath the focal zone of the 2008 Iwate-Miyagi Nairiku earthquake (M 7.2) Reviewed

Hiroshi Ichihara, Shin'ya Sakanaka, Masaaki Mishina, Makoto Uyeshima, Tadashi Nishitani, Yasuo Ogawa, Yusuke Yamaya, Toru Mogi, Kazuhiro Amita, Takuya Miura

EARTH PLANETS AND SPACE   66   2014.6

Three-dimensional electromagnetic imaging of fluids and melts beneath the NE Japan arc revisited by using geomagnetic transfer function data Reviewed

Wataru Kanda, Yasuo Ogawa

EARTH PLANETS AND SPACE   66   2014.5

Three-dimensional resistivity structure and magma plumbing system of the Kirishima Volcanoes as inferred from broadband magnetotelluric data Reviewed

Koki Aizawa, Takao Koyama, Hideaki Hase, Makoto Uyeshima, Wataru Kanda, Mitsuru Utsugi, Ryokei Yoshimura, Yusuke Yamaya, Takeshi Hashimoto, Ken'ichi Yamazaki, Shintaro Komatsu, Atsushi Watanabe, Koji Miyakawa, Yasuo Ogawa

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH   119 ( 1 )   198 - 215   2014.1

New volume of Earth, Planets and Space with an open access-style publishing model under SpringerOpen Reviewed

Yasuo Ogawa

EARTH PLANETS AND SPACE   66   2014.1

Geoelectrical Dimensionality Analyses in Sumatran Fault (Aceh Segment) using Magnetotelluric Phase Tensor Reviewed

Rudy Prihantoro, Nurhasan, Doddy Sutarno, Yasuo Ogawa, Has Priahadena, Dini Fitriani

4TH INTERNATIONAL CONFERENCE ON MATHEMATICS AND NATURAL SCIENCES (ICMNS 2012)L: SCIENCE FOR HEALTH, FOOD AND SUSTAINABLE ENERGY   1589   133 - 136   2014

Crust and upper mantle resistivity structure in the southwestern end of the Kuril Arc as revealed by the joint analysis of conventional MT and network MT data

Satoh H, Y. Nishida, Y. Ogawa, M. Takada, M. Uyeshima

Earth, Planets and Space   2014

Changes in electrical resistivity track changes in tectonic plate coupling Reviewed

Wiebke Heise, T. Grant Caldwell, Edward A. Bertrand, Graham J. Hill, Stewart L. Bennie, Yasuo Ogawa

GEOPHYSICAL RESEARCH LETTERS   40 ( 19 )   5029 - 5033   2013.10

Circularly polarized electric fields associated with seismic waves generated by blasting Reviewed

Masaki Matsushima, Yoshimori Honkura, Mayu Kuriki, Yasuo Ogawa

GEOPHYSICAL JOURNAL INTERNATIONAL   194 ( 1 )   200 - 211   2013.7

Evidence for middle Triassic to Miocene dual subduction zones beneath the Shan-Thai terrane, western Thailand from magnetotelluric data Reviewed

Songkhun Boonchaisuk, Weerachai Siripunvaraporn, Yasuo Ogawa

GONDWANA RESEARCH   23 ( 4 )   1607 - 1616   2013.5

Heterogeneous resistivity structure around high seismicity regions in Hakone volcano, Japan

R. Yoshimura, Y. Ogawa, Y. Yukutake, W. Kanda, S. Komori, T. Goto, R. Honda, M. Harada, T. Yamazaki, M. Kamo, Y. Yasuda, M. Tani

Extended Abstract of 5th International Symposium on Three-Dimensional Electromagnetics (3DEM-5)   2013.5

Shallow Resistivity Structure of Sakurajima Volcano Revealed by Audio-frequency Magnetotellurics Reviewed

Kanda, W, T. Yamazaki, Y. Ogawa, T. Hashimoto, S. Sakanaka, K. Aizawa, S. Takakura, T. Koyama, K, Yamada, T. Kobayashi, S. Komori

Bulletin of Volcanological Society of Japan   58 ( 1 )   251 - 267   2013

Three-dimensional shallow resistivity structure of Sakurajima volcano

Kanda W, Ogawa Y, Takakura S, Koyama T, Hashimoto T, Komori S, Sonoda T, Sato I, Inoue N, Utsugi M

Conductivity Anomaly Research   139 - 144   2013

Editorial

Ogawa, Y.

Earth, Planets and Space   65 ( 1 )   2013

Magnetotelluric and temperature monitoring after the 2011 sub-Plinian eruptions of Shinmoe-dake volcano Reviewed

Koki Aizawa, Takao Koyama, Makoto Uyeshima, Hideaki Hase, Takeshi Hashimoto, Wataru Kanda, Ryokei Yoshimura, Mitsuru Utsugi, Yasuo Ogawa, Ken'ichi Yamazaki

EARTH PLANETS AND SPACE   65 ( 6 )   539 - 550   2013

Spectral peaks in electric field at resonance frequencies for seismically excited motion of ions in the Earth's magnetic field (vol 63, pg 503, 2011) Reviewed

Kuriki, Mayu, Matsushima, Masaki, Ogawa, Yasuo, Honkura, Yoshimori

EARTH PLANETS AND SPACE   65 ( 1 )   57 - 57   2013

Untitled Reviewed

Yasuo Ogawa

EARTH PLANETS AND SPACE   65 ( 1 )   1 - 3   2013

A fault-zone conductor beneath a compressional inversion zone, northeastern Honshu, Japan Reviewed

Hiroshi Ichihara, Makoto Uyeshima, Shinya Sakanaka, Tsutomu Ogawa, Masaaki Mishina, Yasuo Ogawa, Tadashi Nishitani, Yusuke Yamaya, Atsushi Watanabe, Yuichi Morita, Ryokei Yoshimura, Yoshiya Usui

GEOPHYSICAL RESEARCH LETTERS   38   2011.5

Temporal changes in electrical resistivity at Sakurajima volcano from continuous magnetotelluric observations Reviewed

Koki Aizawa, Wataru Kanda, Yasuo Ogawa, Masato Iguchi, Akihiko Yokoo, Hiroshi Yakiwara, Takayuki Sugano

JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH   199 ( 1-2 )   165 - 175   2011.1

Spectral peaks in electric field at resonance frequencies for seismically excited motion of ions in the Earth's magnetic field Reviewed

Kuriki, Mayu, Matsushima, Masaki, Ogawa, Yasuo, Honkura, Yoshimori

EARTH PLANETS AND SPACE   63 ( 6 )   503 - 507   2011

Magnetotelluric pulses generated by volcanic lightning at Sakurajima volcano, Japan Reviewed

Koki Aizawa, Akihiko Yokoo, Wataru Kanda, Yasuo Ogawa, Masato Iguchi

GEOPHYSICAL RESEARCH LETTERS   37   2010.9

Magnetotelluric pulses generated by volcanic lightning at Sakurajima volcano, Japan Reviewed

Koki Aizawa, Akihiko Yokoo, Wataru Kanda, Yasuo Ogawa, Masato Iguchi

GEOPHYSICAL RESEARCH LETTERS   37 ( 17 )   n/a   2010.9

Audio-frequency magnetotelluric imaging of the Hijima fault, Yamasaki fault system, southwest Japan Reviewed

Satoru Yamaguchi, Yasuo Ogawa, Kiyoshi Fuji-ta, Naoto Ujihara, Hiroo Inokuchi, Naoto Oshiman

EARTH PLANETS AND SPACE   62 ( 4 )   401 - 411   2010

Electrical resistivity structure and helium isotopes around Naruko volcano, northeastern Japan and its implication for the distribution of crustal magma Reviewed

Koichi Asamori, Koji Umeda, Yasuo Ogawa, Teruki Oikawa

International Journal of Geophysics   2010   1   2010

A magnetotelluric study of Mount Ruapehu volcano, New Zealand Reviewed

M. R. Ingham, H. M. Bibby, W. Heise, K. A. Jones, P. Cairns, S. Dravitzki, S. L. Bennie, T. G. Caldwell, Y. Ogawa

GEOPHYSICAL JOURNAL INTERNATIONAL   179 ( 2 )   887 - 904   2009.11

Structural controls on the 1998 volcanic unrest at Iwate volcano: Relationship between a shallow, electrically resistive body and the possible ascent route of magmatic fluid

Koki Aizawa, Yasuo Ogawa, Masaaki Mishina, Kosuke Takahashi, Shintaro Nagaoka, Nobumasa Takagi, Shin'ya Sakanaka, Takuya Miura

Journal of Volcanology and Geothermal Research   187 ( 1-2 )   131 - 139   2009.10

Magnetotelluric transect across the Niigata-Kobe Tectonic Zone, central Japan: A clear correlation between strain accumulation and resistivity structure Reviewed

R. Yoshimura, N. Oshiman, M. Uyeshima, H. Toh, T. Uto, H. Kanezaki, Y. Mochido, K. Aizawa, Y. Ogawa, T. Nishitani, S. Sakanaka, M. Mishina, H. Satoh, T. Goto, T. Kasaya, S. Yamaguchi, H. Murakami, T. Mogi, Y. Yamaya, M. Harada, I. Shiozaki, Y. Honkura, S. Koyama, S. Nakao, Y. Wada, Y. Fujita

GEOPHYSICAL RESEARCH LETTERS   36   2009.10

Shallow resistivity changes of Sakurajima volcano from magnetotelluric continuous observation Reviewed

Koki Aizawa, Wataru Kanda, Yasuo Ogawa, Akihiko Yokoo, Masato Iguchi

2009.8

Shallow resistivity structure of Asama Volcano and its implications for magma ascent process in the 2004 eruption Reviewed

Koki Aizawa, Yasuo Ogawa, Takeshi Hashimoto, Takao Koyama, Wataru Kanda, Yusuke Yamaya, Masaaki Mishina, Tsuneomi Kagiyama

JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH   173 ( 3-4 )   165 - 177   2008.6

Magnetotelluric observations around the focal region of the 2007 Noto Hanto Earthquake (M-j 6.9), Central Japan Reviewed

Ryokei Yoshimura, Naoto Oshiman, Makoto Uyeshima, Yasuo Ogawa, Masaaki Mishina, Hiroaki Toh, Shin'ya Sakanaka, Hiroshi Ichihara, Ichiro Shiozaki, Tsutomu Ogawa, Tsutomu Miura, Shigeru Koyama, Yasuyoshi Fujita, Kazuhiro Nishimura, Yu Takagi, Mikihiro Imai, Ryo Honda, Sei Yabe, Shintaro Nagaoka, Mitsuhiro Tada, Toru Mogi

EARTH PLANETS AND SPACE   60 ( 2 )   117 - 122   2008

Resistivity structure around the focal area of the 2004 Rumoi-Nanbu earthquake (M 6.1), northern Hokkaido, Japan Reviewed

Hiroshi Ichihara, Ryo Honda, Toru Mogi, Hideaki Hase, Hiroyuki Kamiyama, Yusuke Yamaya, Yasuo Ogawa

EARTH PLANETS AND SPACE   60 ( 8 )   883 - 888   2008

Application of a modified Hopfield neural network to noisy magnetotelluric data Reviewed

I. V. Popova, Y. Ogawa

IZVESTIYA-PHYSICS OF THE SOLID EARTH   43 ( 3 )   217 - 224   2007.3

Two-dimensional electrical section beneath the eastern margin of Japan Sea Reviewed International journal

Hiroaki Toh, Kiyoshi Baba, Masahiro Ichiki, Tsutomu Motobayashi, Yasuo Ogawa, Masa'aki Mishina, Ichiro Takahashi

GEOPHYSICAL RESEARCH LETTERS   33 ( 22 )   2006.11

Magnetotelluric imaging of crustal magma storage beneath the Mesozoic crystalline mountains in a nonvolcanic region, northeast Japan Reviewed

Koji Umeda, Koichi Asamori, Tateyuki Negi, Yasuo Ogawa

GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS   7   8   2006.8

Aqueous fluids derived from a subducting slab: Observed high He-3 emanation and conductive anomaly in a non-volcanic region, Kii Peninsula southwest Japan Reviewed

K Umeda, Y Ogawa, K Asamori, T Oikawa

JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH   149 ( 1-2 )   47 - 61   2006.1

Two electrical conductors beneath Kusatsu-Shirane volcano, Japan, imaged by audiomagnetotellurics, and their implications for the hydrothermal system Reviewed

Nurhasan, Yasuo Ogawa, Naoto Ujihara, S. Bulent Tank, Yoshimori Honkura, Shin'ya Onizawa, Takehiko Mori, Masahiko Makino

EARTH PLANETS AND SPACE   58 ( 8 )   1053 - 1059   2006

P35 Electromagnetic Monitouring of the Onikobe Gyser : Temporal and Spatial Resistivity Change(THE VOLCANOLOGICAL SOCIETY OF JAPAN 2006 FALL MEETING)

Mishima Seiji, Saho Keisuke, Ogawa Yasuo, Takakura Shin-ichi

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2006   149 - 149   2006

Crust structure at Teshikaga region, Eastern Hokkaido, demonstrated by wide-band magnetotelluric and gravity surveys Reviewed

Ichihara H, Mogi T, Yamaya Y, Kamiyama H, Ogawa Y

Journal of the Hokkaido University, Faculty of Science, Series VII: Geophysics   ( 69 )   233 - 255   2006

Hydrothermal system beneath Mt. Fuji volcano inferred from magnetotellurics and electric self-potential Reviewed

K Aizawa, R Yoshimura, N Oshiman, K Yamazaki, T Uto, Y Ogawa, SB Tank, W Kanda, S Sakanaka, Y Furukawa, T Hashimoto, M Uyeshima, T Ogawa, Shiozaki, I, AW Hurst

EARTH AND PLANETARY SCIENCE LETTERS   235 ( 1-2 )   343 - 355   2005.6

Special issue: Electromagnetic induction in the earth - Preface Reviewed

Y Ogawa, A Junge, AG Jones

PHYSICS OF THE EARTH AND PLANETARY INTERIORS   150 ( 1-3 )   1 - 1   2005.5

Geothermal Structure of the Southern Part of the Kii Peninsula Estimated from the Gravity Anomaly and the Deep Resistivity Structure

UEHARA Daijiro, KAKUTA Chifumi, KUDO Takeshi, UMEDA Koji, OGAWA Yasuo, TANASE Atsushi, TAKEDA Masahiro, CHIBA Akihiko, KIKUCHI Akira, KAGIYAMA Tsuneomi

Zisin : Journal of the Seismological Society of Japan   57 ( 3 )   245 - 255   2005.2

Self-potential studies in volcanic areas (5)-Rishiri, Kusatsu-Shirane, and White Island- Reviewed

T. Hashimoto, T. Mogi, Y. Nishida, Y. Ogawa, N. Ujihara, M. Oikawa, M. Saito, Nurhasan, S. Mizuhashi, T. Wakabayashi, R. Yoshimura, A.W. Hurst, M. Utsugi, Y. Tanaka

Journal of the Hokkaido University, Faculty of Science, Series VII: Geophysics   12 ( 2 )   97 - 113   2004

Electromagnetic imaging of magma across the Narmada Son lineament, central India

Rao, C. K., Ogawa, Y., Gokarn, S. G., Gupta, G.

Earth Planets and Space   56 ( 2 )   2004

Electromagnetic imaging of magma across the Narmada Son lineament, central India Reviewed

Rao, C.K., Ogawa, Y., Gokarn, S.G., Gupta, G.

Earth, Planets and Space   56 ( 2 )   2004

Preface

Iio, Y., Ogawa, Y., Fujimoto, K., Norris, R.J.

Earth, Planets and Space   56 ( 12 )   1075 - 1075   2004

Electric and magnetic field variations arising from the seismic dynamo effect for aftershocks of the M7.1 earthquake of 26 May 2003 off Miyagi Prefecture, NE Japan Reviewed

N Ujihara, Y Honkura, Y Ogawa

EARTH PLANETS AND SPACE   56 ( 2 )   115 - 123   2004

Untitled Reviewed

Y Iio, Y Ogawa, K Fujimoto, RJ Norris

EARTH PLANETS AND SPACE   56 ( 12 )   1075 - 1075   2004

有珠火山における人工地震探査－観測および初動の読み取り－

小川康雄

地震研究所彙報   78 ( 2 )   121 - 143   2003

Effectiveness of Far Remote Reference Method on Magnetotelluric(MT)Survey and Deep Resistivity Structure in the Southern Region of the Kii Peninsula, Southwest Japan

Daijiro UEHARAI, Tsuneari ISHIMARU, Atsushi TANASE, Yasuo OGAWA, Atsushi TANASE

Journal of the Japan Society of Engineering Geology   44 ( 3 )   164 - 174   2003

Deep Structure of the Miocene Igneous Complex in the Kii Peninsula, Southwest Japan, Inferred from Wide-band Magnetotelluric Soundings

UMEDA Koji, UEHARA Daijiro, OGAWA Yasuo, KUDO Takeshi, KAKUTA Chifumi

Bulletin of the Volcanological Society of Japan   48 ( 6 )   461 - 470   2003

Preface Reviewed

SL Fontes, AL Padilha, P Tarits, Y Ogawa

EARTH PLANETS AND SPACE   54 ( 5 )   431 - 431   2002

Resistivity structure across Itoigawa-Shizuoka tectonic line and its implications for concentrated deformation Reviewed

Y Ogawa, S Takakura, Y Honkura

EARTH PLANETS AND SPACE   54 ( 11 )   1115 - 1120   2002

On two-dimensional modeling of magnetotelluric field data

Ogawa, Y.

Surveys in Geophysics   23 ( 2-3 )   2002

広帯域MT法による内陸地震地域のイメージング

小川康雄

地震学会ニュースレター   2002

On two-dimensional modeling of magnetotelluric field data

Yasuo Ogawa

Surveys in Geophysics   Vol. 23 ( No. 2-3 )   2002

International symposium on slip and flow in and below the seismogenic region - Preface Reviewed

H Ito, G Beroza, K Fujimoto, Y Ogawa

EARTH PLANETS AND SPACE   54 ( 11 )   999 - 1000   2002

Electromagnetic heterogeneity of the seismogenic region of 1962 M6.5 northern Miyagi earthquake, northeastern Japan Reviewed

Y Mitsuhata, Y Ogawa, M Mishina, T Kono, T Yokokura, T Uchida

GEOPHYSICAL RESEARCH LETTERS   28 ( 23 )   4371 - 4374   2001.12

Crust and upper mantle resistivity structure in the southwestern end of the Kuril Arc as revealed by the joint analysis of conventional MT and network MT data Reviewed

H Satoh, Y Nishida, Y Ogawa, M Takada, M Uyeshima

EARTH PLANETS AND SPACE   53 ( 8 )   829 - 842   2001

Audio frequency magneto-telluric survey of Norikura Volcano in central Japan Reviewed

K Fuji-ta, Y Ogawa, M Ichiki, S Yamaguchi, Y Makino

JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH   90 ( 3-4 )   209 - 217   1999.6

Constrained inversion of COPROD-2S2 dataset using model roughness and static shift norm Reviewed

Ogawa, Y.

Earth, Planets and Space   51 ( 10 )   1999

A resistivity cross-section of Usu volcano, Hokkaido, Japan, by audiomagnetotelluric soundings Reviewed

Y Ogawa, N Matsushima, H Oshima, S Takakura, M Utsugi, K Hirano, M Igarashi, T Doi

EARTH PLANETS AND SPACE   50 ( 4 )   339 - 346   1998

Magnetotelluric imaging of the SW Japan forearc - a lost paleoland revealed? Reviewed

K Fujita, Y Ogawa, S Yamaguchi, K Yaskawa

PHYSICS OF THE EARTH AND PLANETARY INTERIORS   102 ( 3-4 )   231 - 238   1997.7

13th Workshop on Electromagnetic Induction in the Earth Reviewed

Yoshimori Honukura, Yasuo Ogawa

Journal of Geomagnetism and Geoelectricity   49 ( 42686 )   1255 - 1256   1997

Two-dimensional inversion of Papua New Guinea magnetotelluric dataset assuming static shift as a Gaussian distribution Reviewed

Y Ogawa

JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY   49 ( 6 )   857 - 867   1997

Repeated Self-Potential Profiling of Izu-Oshima Volcano, Japan Reviewed

Tsuneo Ishido, Tsuneo Kikuchi, Nobuo Matsushima, Yusaku Yano, Shinsuke Nakao, Mituhiko Sugihara, Toshiyuki Tosha, Shinichi Takakura, Yasuo Ogawa

Journal of Geomagnetism and Geoelectricity   49 ( 42686 )   1267 - 1278   1997

An audiomagnetotelluric view of the atera fault Reviewed

Y. Ogawa, Y. Honkura

Journal of Geomagnetism and Geoelectricity   49 ( 8 )   1065 - 1071   1997

Preliminary magnetotelluric modelling in the Nikko volcanic area potential break of fluid trap by volcanic intrusion Reviewed

Y. Ogawa, Y. Honkura, F. Ohtani, H. Kuroki, Y. Mitsuhata

Journal of Geomagnetism and Geoelectrcity   49 ( 8 )   1073 - 1078   1997

Data-adaptive inversion of the Oklahoma EMAP dataset

Ogawa, Y.

Journal of Geomagnetism and Geoelectricity   49 ( 6 )   1997

An audiomagnetotelluric view of the Atera fault

Ogawa, Y., Honkura, Y.

Earth, Planets and Space   49 ( 8 )   1997

Magnetotelluric experiment probes deep physical state of southeastern United States

Wannamaker, P.E., Chave, A.D., Booker, J.R., Jones, A.G., Filloux, J.H., Ogawa, Y., Unsworth, M., Tarits, P., Evans, R.

Eos   77 ( 34 )   1996

Deep electrical conductivity structures of the Appalachian Orogen in the southeastern U.S.

Yasuo Ogawa

Geophysical Research Letters   1996

AN INTERPRETATION OF MAGNETOVARIATIONAL DATA IN THE NORTHERN TOHOKU DISTRICT, JAPAN, USING MULTI SHEET MODELING

Avdeev, D. B., Ogawa, Y., Kuvshinov, A. V., Pankratov, O. V.

Journal of Geomagnetism and Geoelectricity   47 ( 4 )   1995

A COLLISION BOUNDARY IMAGED BY MAGNETOTELLURICS, HIDAKA MOUNTAINS, CENTRAL HOKKAIDO, JAPAN Reviewed

Y OGAWA, Y NISHIDA, M MAKINO

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH   99 ( B11 )   22373 - 22388   1994.11

A collision boundary imaged by magnetotellurics, Hidaka Mountains, central Hokkaido, Japan

Ogawa, Y., Nishida, Y., Makino, M.

Journal of Geophysical Research   99 ( B11 )   1994

Deep crustal resistivity structure revealed by wideband magnetotellurics-Tohoku and Hokkaido region-

Yasuo Ogawa

1993.2

CSAMT measurements across the 1986 C craters of Izu-Oshima Island, Japan Reviewed

Y. Ogawa, S. Takakura

Journal of Geomagnetism & Geoelectricity   42 ( 3 )   211 - 224   1990

Assessment of Geothermal Resources of the Hakkoda Geothermal Area

Yasukuni Okubo, Yasuo Ogawa, Shinichi Takakura, Hiroji Tsu, Yasuaki Murata

Journal of the Geothermal Research Society of Japan   12 ( 1 )   23 - 48   1990

Preliminary interpretation on detailed magnetovariational profilings in the northern Tohoku district. Reviewed

OGAWA Yasuo

Earth, Planets and Space   39 ( 9 )   559 - 569   1987

Two-Dimensional Resistivity Modeling Based on Regional Magnetotelluric Survey in the Northern Tohoku District, Northeastern Japan Reviewed

Yasuo Ogawa

Journal of Geomagnetism and Geoelectricity   39 ( 6 )   349 - 366   1987

地震波解析から推定される草津白根火山本白根山2018年噴火の噴火過程

山田大志, 黒川愛香, 寺田暁彦, 神田径, 上田英樹, 青山裕, 大倉敬宏, 小川康雄, 棚田俊收

日本火山学会講演予稿集   2019   2019

2018年草津白根山噴火に関する総合調査

小川 康雄, 青山 裕, 山本 希, 筒井 智樹, 寺田 暁彦, 大倉 敬宏, 神田 径, 小山 崇夫, 金子 隆之, 大湊 隆雄, 石崎 泰男, 吉本 充宏, 石峯 康浩, 野上 健治, 森 俊哉, 木川田 喜一, 片岡 香子, 松元 高峰, 上石 勲, 山口 悟, 伊藤 陽一, 常松 佳恵

自然災害科学総合シンポジウム講演論文集   ( 55 )   25 - 30   2018.9

事例調査に基づく各国超臨界地熱システムのモデル化と比較

岡本京祐, 浅沼宏, 柳澤教雄, 山谷祐介, 渡邉教弘, 石橋琢也, 最首花恵, 茂木透, 石塚師也, 土屋範芳, 岡本敦, 長縄成実, 小川康雄, 藤光康宏, 北村圭吾, 梶原竜哉, 堀本誠記, 島田邦明

日本地球惑星科学連合大会予稿集(Web)   2018   2018

世界の超高温地熱システムの特徴

岡本京祐, 石橋琢也, 最首花恵, 山谷祐介, 柳澤教雄, 渡邉教弘, 浅沼宏, 茂木透, 石塚師也, 土屋範芳, 岡本敦, 長縄成実, 小川康雄, 藤光康宏, 北村圭吾, 梶原竜哉, 堀本誠記, 島田邦明

日本地熱学会学術講演会講演要旨集   2018   2018

八幡平西部地域における熱発光による地熱探査および探査情報の統合化

岡野広樹, 平野伸夫, 土屋範芳, 山谷祐介, HSUANG T, 小川康雄

日本地熱学会学術講演会講演要旨集   2018   112   2018

草津白根火山・本白根山で2018年1月23日に発生した噴火―地球物理学的観測からの示唆―

寺田暁彦, 神田径, 小川康雄, 青山裕, 山本希, 筒井智樹, 大倉敬宏, 野口里奈

日本地球惑星科学連合大会予稿集(Web)   2018   ROMBUNNO.SVC41‐37 (WEB ONLY)   2018

八幡平西部地域における地熱活動の地表探査および地下探査情報の統合化

岡野広樹, 土屋範芳, 平野伸夫, 小川康雄, TSENG Kuo Hsuan

日本地球惑星科学連合大会予稿集(Web)   2018   ROMBUNNO.SCG64‐P04 (WEB ONLY)   2018

草津白根火山における臨時地震観測

山本希, 青山裕, 筒井智樹, 寺田暁彦, 神田径, 小川康雄

日本地球惑星科学連合大会予稿集(Web)   2018   ROMBUNNO.SVC41‐P10 (WEB ONLY)   2018

地下比抵抗構造から推定される草津白根火山のマグマ熱水系

松永康生, 神田径, 高倉伸一, 小山崇夫, 齋藤全史郎, 小川康雄, 関香織, 鈴木惇史, 鈴木惇史, 木下雄介, 木下貴裕

日本地球惑星科学連合大会予稿集(Web)   2017   ROMBUNNO.SVC47‐16 (WEB ONLY)   2017

湯釜湖水のCl濃度・水安定同位体および精密震源分布から推定される草津白根火山の熱水系

桑原知義, 寺田暁彦, 大場武, 行竹洋平, 神田径, 小川康雄

日本地球惑星科学連合大会予稿集(Web)   2017   ROMBUNNO.SVC48‐02 (WEB ONLY)   2017

四国西部域の広域比抵抗構造

吉村令慧, 山崎健一, 小川康雄, 中川潤, 川崎慎吾, 小松信太郎, 米田格, 大内悠平, 岡崎智久, 鈴木惇史, 齋藤全史郎, 臼井嘉哉, 寺石眞弘

日本地震学会秋季大会講演予稿集   2016   2016

草津白根火山2014年膨張変動に伴う流体輸送過程~DD法による精密震源決定からの示唆

桑原知義, 寺田暁彦, 行竹洋平, 神田径, 小川康雄

日本地球惑星科学連合大会予稿集(Web)   2016   ROMBUNNO.SVC47‐P08 (WEB ONLY)   2016

MT法により推定した草津白根火山(本白根山)の地下構造

松永康生, 神田径, 高倉伸一, 小山崇夫, 小川康雄, 関香織, 鈴木惇史, 齋藤全史郎

日本地球惑星科学連合大会予稿集(Web)   2016   ROMBUNNO.SVC47‐P07 (WEB ONLY)   2016

口永良部島火山の3次元比抵抗構造

神田径, 宇津木充, 小川康雄

日本地球惑星科学連合大会予稿集(Web)   2016   ROMBUNNO.SVC47‐P40 (WEB ONLY)   2016

地殻変動および熱観測から推定した草津白根山火口湖周辺の物質収支

寺田暁彦, 坂本ゆり, 神田径, 小川康雄

日本地球惑星科学連合大会予稿集(Web)   2016   ROMBUNNO.SVC45‐05 (WEB ONLY)   2016

豊後水道スロースリップ域周辺の広域比抵抗構造

吉村令慧, 山崎健一, 小川康雄, 中川潤, 川崎慎吾, 小松信太郎, 米田格, 大内悠平, 岡崎智久, 鈴木惇史, 齋藤全史郎, 臼井嘉哉, 寺石眞弘

地球電磁気・地球惑星圏学会総会及び講演会(Web)   140th   2016

Upward fluid migration accompanying earthquake swarms at Kusatsu-Shirane volcano in 2014

T. Kuwahara, A. Terada, Y. Yukutake, W. Kanda, Y. Ogawa

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2016 ( 0 )   100 - 100   2016

Electromagnetic image, and potential change in 2014-2016, beneath Zao volcano, NE Japan

M. Ichiki, Akutagawa M, Kobayashi T, Matsuura S, Omori S, Ono K, Seki S, Kanda W, Seki K, Ogawa Y, Ushioda M, Kaida T, Uyeshima M, Demachi T, Hirahara S, Nakayama T, Sato M, Yamamoto M, Miura S, Moriyama T

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2016 ( 0 )   38 - 38   2016

Geomagnetic changes during the 2014 activity of Kusatsu-Shirane Volcano

松永康生, 神田径, 小山崇夫, 小川康雄

Conductivity Anomaly研究会論文集   2015   67‐74   2015.8

AMT survey around the Kusatsu-Bandaiko hot spring

神田径, 高倉伸一, 小山崇夫, 小川康雄, 関香織, 日野裕太, 長谷英彰, 長谷英彰

Conductivity Anomaly研究会論文集   2014   87‐91   2015.3

草津白根火山における微小地震の震源再決定

桑原知義, 寺田暁彦, 神田径, 小川康雄

日本地球惑星科学連合大会予稿集(Web)   2015   ROMBUNNO.SVC45‐P06 (WEB ONLY)   2015

P24 A preliminary report on 3-D resistivity model of Kuchi-erabu-jima volcano

Kanda Wataru, Utsugi Mitsuru, Ogawa Yasuo

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2015 ( 0 )   122 - 122   2015

A2-05 Hydrothermal system beneath the Jigokudani valley, Tateyama volcano

Seki K, Kanda W, Tanbo T, Ogawa Y, Takakura S, Ushioda M, Saito Z, Matsunaga Y

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2015 ( 0 )   26 - 26   2015

温泉水と比抵抗構造から推定される立山地獄谷の熱水系

関香織, 神田径, 丹保俊哉, 小川康雄, 高倉伸一, 潮田雅司, 鈴木惇史, 齋藤全史郎, 松永康生

日本地球惑星科学連合大会予稿集(Web)   2015   ROMBUNNO.SVC49‐02 (WEB ONLY)   2015

三次元比抵抗構造から推定される阿蘇中岳火口浅部の熱水系

神田径, 宇津木充, 高倉伸一, 井上寛之, 小川康雄

日本地球惑星科学連合大会予稿集(Web)   2015   ROMBUNNO.SVC49‐03 (WEB ONLY)   2015

草津白根山で観測された火山活動の活発化に伴う地磁気変化について

松永康生, 神田径, 小山崇夫, 小川康雄

日本地球惑星科学連合大会予稿集(Web)   2015   ROMBUNNO.SVC45‐28 (WEB ONLY)   2015

草津白根火山における火口直下浅部への流体蓄積

寺田暁彦, 大倉敬宏, 神田径, 小川康雄

日本地球惑星科学連合大会予稿集(Web)   2015   ROMBUNNO.SVC45‐29 (WEB ONLY)   2015

P89 A top surface height of a substratum beneath Shirane pyroclastic cone of Kusatsu-Shirane volcano inferred from seismic records

Kuwahara Tomoyoshi, Terada Akihiko, Kanda Wataru, Ogawa Yasuo

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2015 ( 0 )   187 - 187   2015

P42 Estimation of focal depth of volcanic earthquakes with using autocorrelation of seismograms : Examples in Kusatsu-Shirane Volcano

Miyamachi Rintaro, Tsutsui Tomoki, Nogami Kenji, Kanda Wataru, Terada Akihiko, Ogawa Yasuo

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2015 ( 0 )   140 - 140   2015

A3-02 Resistivity structure and ^3He/^4He ratios around the focal zone of the 2011 Mw 5.9 earthquake below Mt. Fuji, Japan

Aizawa Koki, Sumino Hirochika, Uyeshima Makoto, Yamaya Yusuke, Hase Hideaki, Ohno Masao, Takahashi Masaaki, Kazahaya Kohei, TaWaT Rung-Arunwan, Ogawa Yasuo

Programme and abstracts the Volcanological Society of Japan   2014   42 - 42   2014.11

A Pilot Magnetotelluric survey for Geothermal Exploration in Northern Thailand

130   181 - 184   2014

草津白根山・湯釜火口湖地下浅部への流体供給―2014年3月以降の群発地震に伴う地殻変動と湖底熱活動の変化―

寺田暁彦, 神田径, 大倉敬宏, 小川康雄

日本火山学会講演予稿集   2014   77 - 77   2014

Resistivity structure around the Jigokudani valley, Tateyama volcano, Japan, inferred from Audio-frequency magnetotellurics

関 香織, 神田 径, 小川 康雄

Conductivity anomaly研究会論文集   9 - 12   2014

P2-34 Microearthquake swarms at Kusatsu-Shirane volcano in 2014

MATSUDA Shin'ichiro, TOKUNAGA Keiko, WACHI Shoko, TERADA Akihiko, KANDA Wataru, Ogawa Yasuo, KUWAHARA Tomoyoshi

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2014 ( 0 )   186 - 186   2014

P1-33 Electrical image of hydrothermal system beneath the Jigokudani valley : Implication from an audio-frequency magnetotelluric survey

Seki Kaori, Kanda Wataru, Ogawa Yasuo, Tanbo Toshiya, Kobayashi Tomokazu, Hino Yuta, Hase Hideaki, Suzuki Atsushi

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2014 ( 0 )   151 - 151   2014

P1-31 A 3-D resistivity structure around the Bandaiko hot-spring, Kusatsu-Shirane volcano

Kanda W, Takakura S, Koyama T, Ogawa Y, Seki K, Hino Y, Hase H

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2014 ( 0 )   149 - 149   2014

B2-10 3D Crustal Resistivity Structure in the Central NE Japan Forearc

Ogawa Y., Honkura Y., Hase H., Songkhun B., Mishina M., Tank S.B.

Programme and abstracts the Volcanological Society of Japan   2013   80 - 80   2013.9

P56 Electromagnetic imaging of arc magma in the northern Tohoku district

Kanda Wataru, Ogawa Yasuo

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2013 ( 0 )   158 - 158   2013

P84 Shallow 3-D resistivity structure of Sakurajima volcano

Kanda W, Utsugi M, Ogawa Y, Takakura S, Koyama T, Hashimoto T, Komori S, Sonoda T, Sato I, Inoue N

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2012 ( 0 )   183 - 183   2012

広帯域MT探査による霧島火山群の3次元比抵抗構造と異常位相のモデリング

相澤広記, 小山崇夫, 上嶋誠, 長谷英彰, 山谷祐介, 橋本武志, 神田径, 小川康雄, 宇津木充, 吉村令慧, 山崎健一

地球電磁気・地球惑星圏学会総会及び講演会予稿集(CD-ROM)   132nd   ROMBUNNO.A003-10   2012

B1-12 3D resistivity structure of Kirishima volcano inferred from broad-band magnetotelluric data

Aizawa Koki, Yoshimura Ryokei, Yamazaki Ken'ichi, Koyama Takao, Uyeshima Makoto, Hase Hideaki, Yamaya Yusuke, Hashimoto Takeshi, Kanda Wataru, Ogawa Yasuo, Utsugi Mitsuru

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2012 ( 0 )   58 - 58   2012

箱根地震活動域周辺の3次元比抵抗モデリング

吉村令慧, 小川康雄, 行竹洋平, 山崎友也, 加茂正人, 神田径, 小森省吾, 後藤忠徳, 安田陽二郎, 谷昌憲, 本多亮, 原田昌武

地球電磁気・地球惑星圏学会総会及び講演会予稿集(CD-ROM)   132nd   ROMBUNNO.A003-P002   2012

観測紹介(霧島山広帯域MT観測)

相澤広記, 小山崇夫, 長谷英彰, 上嶋誠, 橋本武志, 神田径, 小川康雄, 宇津木充, 吉村令慧

物理探査ニュース   ( 12 )   1 - 2   2011.10

A2-01 Temporal changes in electrical resistivity of Kirishima volcano from continuous magnetotelluric observations

Aizawa Koki, Koyama Takao, Hase Hideaki, Uyeshima Makoto, Hashimoto Takeshi, Utsugi Mitsuru, Yoshimura Ryokei, Kanda Wataru, Ogawa Yasuo

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2011 ( 0 )   23 - 23   2011

AMT Observations over the Seismic Active Region in Hakone Volcano : Preliminary Results

吉村 令慧, 小川 康雄, 行竹 洋平, 山崎 友也, 加茂 正人, 神田 径, 小森 省吾, 後藤 忠徳, 本多 亮, 原田 昌武, 安田 陽二郎, 谷 昌憲

京都大学防災研究所年報   ( 55 )   105 - 111   2011

P22 Geomagnetic monitoring of Kusatsu-Shirane volcano

Kanda W, Koyama T, Ogawa Y, Yamawaki T, Terada A, Boonchaisuk S

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2011 ( 0 )   134 - 134   2011

P18 Broad-band MT survey in Izu-Oshima

Uyeshima Makoto, Sakashita Shikou, Morita Yuichi, Takakura Shin'ichi, Kanda Wataru, Boonchaisuk Songkhun, Hartkorn Oliver A, Ogawa Yasuo, Ogawa Tsutomu, Koyama Takao, Hase Hideaki, Aizawa Koki, Miyakawa Koji, Abe Hideji, Nagatake Hiroyuki, Maehara Yuki

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2011 ( 0 )   130 - 130   2011

P09 Broad-band MT survey around Shinmoe-dake, Kirishima volcanos

Koyama Takao, Hashimoto Takeshi, Yagami Itsuki, Kanda Wataru, Ogawa Yasuo, Kagiyama Tsuneomi, Utsugi Mitsuru, Yoshimura Ryokei, Yamazaki Ken'ichi, Komatsu Shintaro, Uyeshima Makoto, Hase Hideaki, Aizawa Koki, Yamaya Yusuke, Sugano Takayuki, Watanabe Atsushi, Miyakawa Koji, Maehara Yuki

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2011 ( 0 )   121 - 121   2011

Continuous resistivity monitoring of Onikobe geyser using high speed resistivity survey meter

JINGUUJI Motoharu, TAKAKURA Shinichi, OGAWA Yasuo, KARINO Yoshiaki

123   277 - 278   2010.9

MT連続観測による桜島地下浅部の比抵抗変化

相澤広記, 神田径, 小川康雄, 井口正人, 横尾亮彦, 八木原寛, 菅野貴之

桜島火山における多項目観測に基づく火山噴火準備過程解明のための研究 平成21年度報告書 , pp. 73-80   2010

P51 Magnetotelluric surveys in and around the Aira caldera (2)

Kanda W, Tank S. B, Kaya T, Ogawa Y, Kasaya T, Yakiwara H, Ichihara H, Hashimoto T, Koyama T, Utsugi M, Inoue H, Sonoda T

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2010 ( 0 )   2010

MT imaging around Zao volcano and seismicity

26 - 30   2010

A wide-band MT observation around Onikobe caldera (preliminary report)

1 - 4   2010

新潟−神戸ひずみ集中帯における深部比抵抗構造−広帯域MT法とネットワークMT法のジョイントインバージョン−

臼井嘉哉, 上嶋誠, 小河勉, 吉村令慧, 大志万直人, 山口覚, 藤浩明, 村上英記, 宇都智史, 兼崎弘憲, 望戸裕司, 相澤広記, 丹保俊哉, 最上巴恵, 小川康雄

CA論文集   41 - 48   2010

日本海東縁ひずみ集中帯（庄内—新庄地域）の比抵抗構造イメージング

市原寛, 上嶋誠, 坂中伸也, 小河勉, 三品正明, 小川康雄, 西谷忠師, 山谷祐介, 渡邊篤志, 森田裕一, 吉村令慧, 臼井嘉哉

月刊地球   32 ( 7 )   417-424   2010

Some theoretical calculations on Volcano Loop

長竹 宏之, 小川 康雄, 神田 径

Conductivity anomaly研究会論文集   18 - 23   2010

鬼首カルデラ周辺の地殻比抵抗構造探査

吹野浩美, 小川康雄, 市來雅啓, 神田径, TANK S. Bulent, TANK S. Bulent

地球電磁気・地球惑星圏学会総会及び講演会予稿集(CD-ROM)   128th   ROMBUNNO.A003-P007   2010

Audio-frequency magnetotelluric survey at the Ohara fault in the Yamasaki fault system, southwest Japan

Yamaguchi Satoru, Ueda Satoshi, Murakami Hideki, Ogawa Yasuo, Kato Shigehiro, Uenishi Koji

Report of Research Center for Urban Safety and Security Kobe University   13   269 - 279   2009.3

Magnetotelluric investigations along the eastern foot of Usu volcano

高倉 伸一, 橋本 武志, 小川 康雄, 井上 寛之, 山谷 祐介, 市原 寛, 茂木 透, 宇津木 充, 松島 喜雄, 佐藤 秀幸

Geophysical bulletin of Hokkaido University   ( 72 )   107 - 115   2009.3

Resistivity structure beneath the doming zone of the Usu 2000 eruption

橋本 武志, 小川 康雄, 高倉 伸一, 山谷 祐介, 市原 寛, 宇津木 充, 井上 寛之, 小池 哲司, 長谷川 浩, 茂木 透

Geophysical bulletin of Hokkaido University   ( 72 )   79 - 105   2009.3

A model for observed circular polarized electric fields coincident with the passage of large seismic waves

Honkura, Y, Y. Ogawa, M. Matsushima, S. Nagaoka, N. Ujihara, T. Yamawaki

J. Geophys. Res.   114 ( B10 )   B10103   2009

広帯域MT観測から推定される阿蘇カルデラの比抵抗構造 Reviewed

宇津木充, 鍵山恒臣, 小森省吾, 井上寛之, 橋本武志, 小山崇夫, 小川康雄, 神田径, 山崎友也, 長町信吾, 石田 憲久

第4回阿蘇火山の集中総合観測報告書   2009

Resistivity structure around the focal area of the 2004 Rumoi-Nanbu earthquake (M 6.1), northern Hokkaido, Japan

ICHIHARA Hiroshi, HONDA Ryo, MOGI Toru, HASE Hideaki, KAMIYAMA Hiroyuki, YAMAYA Yusuke, OGAWA Yasuo

EPS   60 ( 8 )   883 - 888   2008.8

Seismic Pseudo Reflection Profiling in Shirane Pyrocrastic Cone, Kusatsu-Shirane Volcano

TSUTSUI Tomoki, NAKAMICHI Haruhisa, YOSHIKAWA Shin, MATSUSHIMA Takeshi, ONIZAWA Shin'ya, MORI Takehiko, NOGAMI Kenji, HIRABAYASHI Jun'ichi, OGAWA Yasuo, TAKAGI Noriaki, SUZUKI Atsuo, OIKAWA Jun

BULLETIN OF THE VOLCANOLOGICAL SOCIETY OF JAPAN   53 ( 1 )   1 - 14   2008

P42 Resistivity Changes of Sakurajima Volcano by Magnetotelluric Continuous Observations

Aizawa Koki, Kanda Wataru, Iguchi Masato, Ogawa Yasuo

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2008 ( 0 )   134 - 134   2008

B40 Volcanic Lightning on the Data of the Continuous Magnetotelluric Observation at Sakurajima Volcano

Aizawa Koki, Kanda Wataru, Yokoo Akihiko, Ogawa Yasuo

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2008 ( 0 )   92 - 92   2008

第10回 桜島火山の集中総合観測 桜島火山におけるAMT法比抵抗構造調査

神田径, 山崎友也, 橋本武志, 坂中伸也, 山田健太, 小川康雄, 相澤広記, 高倉伸二, 小山崇夫, 小林宰, 小森省吾

第10回桜島火山の集中総合観測 平成19年6月-平成20年3月   89 - 104   2008

桜島火山雷起源の地電流パルス

相澤広記, 神田径, 小川康雄, 横尾亮彦

地球電磁気・地球惑星圏学会総会及び講演会予稿集(CD-ROM)   124th   ROMBUNNO.A003-01   2008

Observation and numerical simulation of seismic dynamo effect

47 - 54   2008

Resistivity structure of Itoigawa-Shizuoka Tectonic Line active fault system at Lake Suwa

17 - 21   2007

Observation of the seismic dynamo effect using a blast

107 - 111   2007

Temporal change of resistivity at the Onikobe geyser

60 - 65   2007

東アジア‐日本海‐東北日本弧‐北西太平洋を横断する1次元電気伝導度構造の傾向

市来雅啓, 阿部なつ江, 後藤忠徳, 馬場聖至, 歌田久司, 上嶋誠, 金沢敏彦, 望月公広, 山田知朗, 藤浩明, 平野直人, 小川康雄, 三品正明

しんかいシンポジウム予稿集   22nd   157 - 158   2006.2

P33 Magnetotelluric resistivity survey of Usu Volcano (project-2006)(THE VOLCANOLOGICAL SOCIETY OF JAPAN 2006 FALL MEETING)

Hashimoto T, Koike T, Hasegawa H, fujii I, Yamaya Y, Ichihara H, Mogi T, Ogawa Y, Utsugi M, Inoue H, Takakura S, Satoh H

PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN   2006 ( 0 )   2006

Asama Volcano EM field experiments in 2005

Hashimoto, T, T. Mogi, A. Suzuki, Y. Yamaya, M. Mishina, T. Nakatsuka, E. Koyama, T. Koyama, K. Aizawa, J. Hirabayashi, M. Matsuo, K. Nogami, Y. Ogawa, N. Ujihara, T. Kagiyama, W. Kanda, A. Okubo, Y. Tanaka, T. Uto, M. Utsugi

Conductivity Anomaly Research   78 - 79   2006

広帯域MT観測および重力測定による北海道東部弟子屈地域の地殻構造

市原寛, 茂木透, 山谷祐介, 神山裕幸, 小川康雄

北海道大学地球物理学研究報告   69   233-255   2006

Audio-magnetotelluric profiling of Kusatsu-Shirane volcano and its implications for hydrothermal system (地震・火山地域の電磁気構造と変動)

Nurhasan, Ogawa Yasuo, Ujihara Naoto

Conductivity anomaly研究会論文集   102 - 104   2006

鬼首間歇泉における電磁気観測 (地震・火山地域の電磁気構造と変動)

松尾 元広, 小川 康雄, 氏原 直人

Conductivity anomaly研究会論文集   71 - 77   2006

浅間火山のダイク貫入域におけるMT観測 (地震・火山地域の電磁気構造と変動)

小川 康雄, 浅間山電磁気構造探査グループ

Conductivity anomaly研究会論文集   81 - 84   2006

広帯域MT法による歪集中帯周辺における下部地殻のイメージング

吉村令慧, 藤浩明, 兼崎弘憲, 松浦友紀, 森谷辰輝, 笠見弘昌, 西谷忠師, 塩崎一郎, 望戸裕司, 桑波吉紘, 田中嘉一, 畑真紀, 大志万直人, 和田安男, 中尾節郎, 藤田安良, 宇都智史, 茂木透, 山谷祐介, 坂中伸也, 三品正明, 後藤忠徳, 笠谷貴史, 佐藤秀幸, 小川康雄, 本蔵義守, 氏原直人, 原田誠, 山口覚, 長野雄大, 村上英記, 上嶋誠, 小山茂, 相沢広記

日本地震学会秋季大会講演予稿集   2005   202   2005.10

Resistivity structure around the aftershock area of the 2003 Northern Miyagi earthquake, NE Japan, using wideband magnetotelluric survey

SATOH Hideyuki, MITSUHATA Yuji, UCHIDA Toshihiro, MISHINA Masaaki, OGAWA Yasuo, HONKURA Yoshimori, NISHITANI Tadashi, SAKANAKA Shin'ya

112   184 - 185   2005.5

Integration of geophysical data in the Usu volcano area measured before and after the Usu 2000 Eruption

OKUMA Shigeo, NAKATSUKA Tadashi, KOMAZAWA Masao, SATOH Hideyuki, TAKAKURA Shinichi, MATSUSHIMA Nobuo, ISHIZUKA Yoshihiro, OGAWA Yasuo, MOGI Tohru

112   331 - 334   2005.5

Magnetotelluric imaging of the fault rupture area of the 1999 Izmit (Turkey) earthquake

SB Tank, Y Honkura, Y Ogawa, M Matsushima, N Oshiman, MK Tuncer, C Celik, E Tolak, AM Isikara

PHYSICS OF THE EARTH AND PLANETARY INTERIORS   150 ( 1-3 )   213 - 225   2005.5

Resistivity imaging across the source region of the 2004 Mid-Niigata Prefecture earthquake (M6.8), central Japan

M Uyeshima, Y Ogawa, Y Honkura, S Koyama, N Ujihara, T Mogi, Y Yamaya, M Harada, S Yamaguchi, Shiozaki, I, T Noguchi, Y Kuwaba, Y Tanaka, Y Mochido, N Manabe, M Nishihara, M Saka, M Serizawa

EARTH PLANETS AND SPACE   57 ( 5 )   441 - 446   2005

Mid-crustal electrical conductors and their correlations to seismicity and deformation at Itoigawa-Shizuoka Tectonic Line, Central Japan

OGAWA Yasuo, HONKURA Yoshimori

EPS   56 ( 12 )   1285 - 1291   2004.12

High-density electrical sounding and self-potential profiling at Kusatsu-Shirane volcano

Hashimoto, T, T. Mogi, Y. Nishida, Y. Ogawa, J. Hirabayashi, M, Oikawa, M. Saito, M. Mizuhashi, N. Ujihara, Nurhasan, T. Wakabayashi

Report of the 4th Joint Observation of Kusatsu-Shirane Volcano   133 - 142   2004

Magnetotelluric imaging of the western part of 1999 Izmit earthquake fault rupture zone and its seismogenic implication (地殻活動域及びその周辺の電気伝導度構造)

Tank S. B., Honkura Y., Ogawa Y.

Conductivity anomaly研究会論文集   16 - 23   2003

Resistivity structure in the western part of the fault rupture zone associated with the 1999 Izmit earthquake and its seismogenic implication

SB Tank, Y Honkura, Y Ogawa, N Oshiman, MK Tuncer, M Matsushima, C Celik, E Tolak, AM Isikara

EARTH PLANETS AND SPACE   55 ( 7 )   437 - 442   2003

長町利府断層深部延長の比抵抗構造イメージング

小川康雄

地球惑星科学関連学会2003年合同大会予稿集   S075 - S014   2003

内陸地震地域の深部比抵抗構造探査--長町利府断層 (地殻活動域及びその周辺の電気伝導度構造)

小川 康雄, 三品 正明, 本蔵 義守

Conductivity anomaly研究会論文集   1 - 7   2003

Resistivity structure across Itoigawa-Shizuoka tectonic line and its implications for concentrated deformation

OGAWA Yasuo, TAKAKURA Shinichi, HONKURA Yoshimori

EPS   54 ( 11 )   1115 - 1120   2002.11

電磁波で地殻構造と水の動きを見る--出羽丘陵から脊梁山地の地殻比抵抗断面 (特集 地球の中で水は何をしているのか--新しい地震像・火山像・地球進化論に向けて)

小川 康雄

科学   72 ( 2 )   204 - 208,197   2002.2

Magnetotelluric imaging of fluids in intraplate earthquake zones, NE Japan Back Arc

Yasuo Ogawa, Masaaki Mishina, Tadanori Goto, Hideyuki Satoh, Naoto Oshiman, Takafumi Kasaya, Yukie Takahashi, Tadashi Nishitani, Shin'ya Sakanaka, Makoto Uyeshima, Yuji Takahashi, Yoshimori Honkura, Masaki Matsushima

Geophysical Research Letters   28 ( 19 )   3741 - 3744   2001.10

Magma prospecting in Usu volcano, Hokkaido, Japan, using magnetotelluric soundings

Nobuo Matsushima, Hiromitsu Oshima, Yasuo Ogawa, Shinichi Takakura, Hideyuki Satoh, Mitsuru Utsugi, Yasunori Nishida

Journal of Volcanology and Geothermal Research   109 ( 4 )   263 - 277   2001.9

MT法による葛根田地熱地域の貯留層構造の探査 (深部地熱資源に関する研究--葛根田地域の深部地熱系の解析・評価を中心に) -- (第3部 地球物理学的研究(探査法検討))

内田 利弘, 小川 康雄, 高倉 伸一

地質調査所報告   ( 284 )   207 - 220   2000.12

High-Resolution Aeromagnetic Survey over Usu Volcano, Hokkaido, Japan

OKUMA Shigeo, NAKATSUKA Tadashi, MORIJIRI Rie, MAKINO Masahiko, UCHIDA Toshihiro, OGAWA Yasuo, TAKAKURA Shinichi, MATSUSHIMA Nobuo

103   151 - 153   2000.10

糸静線北部の広帯域MT法探査(序報) (〔2000年 CONDUCTIVITY ANOMALY研究会〕) -- (地球内部の電気伝導度--浅部微細構造から地球中心まで)

小川 康雄, 高倉 伸一, 本蔵 義守

Conductivity anomaly研究会論文集   ( 2000 )   15 - 22   2000

Resistivity sections of the Aso caldera, central Kyushu, Japan, inferred from magnetotelluric soundings

Takakura, S, T. Hashimoto, K. Koike, Y. Ogawa

Conductivity Anomaly Research   23 - 30   2000

海底ケーブル利用による沖縄海域での深海底地磁気電場観測 (〔2000年 CONDUCTIVITY ANOMALY研究会〕) -- (地球内部の電気伝導度--浅部微細構造から地球中心まで)

中塚 正, 小川 康雄, 大熊 茂雄

Conductivity anomaly研究会論文集   ( 2000 )   39 - 45   2000

Interpretation of magnetotelluric Data in the Kakkonda Geothermal Field

UCHIDA T., OGAWA Y., TAKAKURA S., MITSUHATA Y.

1999   1999.12

Resistivity Structure of Deep Geothermal System in the Aso Caldera, Central Kyushu, Japan

TAKAKURA T., HASHIMOTO T., KOIKE K., OGAWA Y.

1999   1999.12

MT法による奥羽脊梁山地の地殻構造探査 (総特集 東北日本トランセクト--島弧変形と地殻活動) -- (東北日本の地殻構造)

1998年電磁気共同観測MTデータ整理委員会, 小川 康雄, 三品 正明

号外地球   ( 27 )   88 - 92   1999.12

断層の深部構造を電磁波で見る (特集 地球物理学の周辺では)

小川 康雄

地質ニュース   ( 544 )   32 - 38   1999.12

地球物理図の周辺では (特集 地球物理学の周辺では)

駒沢 正夫, 大熊 茂雄, 小川 康雄

地質ニュース   ( 544 )   口絵5 - 8   1999.12

Deep Fault Structure Imaged by Resistivity

OGAWA Y., TAKAKURA S., MITSUHATA Y., MISHINA M., HONKURA Y.

1999 ( 2 )   P146   1999.11

Resistivity Structure of Usu Volcano(2)

MATSUSHIMA N, OGAWA Y, TAKAKURA S, TOMIYA A, UTSUGI M, TAMURA M, SATO H, OSHIMA H, NISHIDA Y

日本地熱学会誌   21 ( 1 )   75 - 76   1999.1

広帯域MT法による千屋断層深部比抵抗構造(序報) (1998年電磁気共同観測)

小川 康雄, 1998年電磁気共同観測MTデータ整理委員会

Conductivity anomaly研究会論文集   ( 1999 )   6 - 13   1999

広域MT法による千屋断層深部比抵抗構造調査(序報)

地殻比抵抗研究グループ(住友則彦, 三品正明, 上嶋誠, 小川康雄, 後藤忠徳, 笠谷貴史, 市来雅啓, 大志万直人, 坂中伸也, 高橋幸恵, 西谷忠師, 高橋優志, 本蔵義守, 佐藤秀幸, 村上英記, 西田泰典, 小菅正裕, 佐鯉教央, 千田良道, 立花憲司, 橋本恵一, 長尾栄広, 有吉慶介, 北村保夫, 村山賢持, 笹井洋一, 歌田久司, 清水久芳, 小河勉, 小山崇夫, 冨澤一郎, 石井直人, 領木邦浩, 中川渥, 矢部征, 村上貴久, 山崎健一, 松村史樹, 網田和宏, 塩崎一郎, 福本隆史

京都大学防災研究所年報   42 ( B-1 )   203 - 212   1999

北海道東部地域の地殻および上部マントルの比抵抗構造--広帯域MTおよびネットワークMTデータの統合解析 (ネットワークMT)

佐藤 秀幸, 西田 泰典, 小川 康雄

Conductivity anomaly研究会論文集   ( 1999 )   38 - 46   1999

Volcano-electromagnetic study on Hokkaido Komaga-take (A preliminary study)

Tanimoto K, Matsushima N, Ogawa Y, Takakura S, Satoh H, Utsugi M, Kato Y, Doi T, Sugisaki Y, Saba M, Hirayama Y, Nishida Y, Ohshima H

Programme and abstracts the Volcanological Society of Japan   1998 ( 2 )   73 - 73   1998.10

MT Survey Across the Taupo Volcanic Zone, New Zealand

OGAWA Y., TAKAKURA S., UCHIDA T., MATSUSHIMA N., TOSHA T., NISHI Y., CALDWELL T. G., BIBBY H., BENNIE S. L.

99   288 - 291   1998.10

有珠山の比抵抗構造 (その2) MT法による深部構造

MATSUSHIMA NOBUO, OGAWA YASUO, TAKAKURA SHIN'ICHI, TOMIYA AKIHIKO, UTSUGI MITSURU, TAMURA MAKOTO, SATO HIDEYUKI, OSHIMA HIROMITSU, NISHIDA YASUNORI

日本地熱学会学術講演会講演要旨集   1998   110 - 21   1998.10

Resistivity Structure of Usu Volcano (1)

MATUSHIMA N, OGAWA Y, TAKAKURA S, UTSUKI M, HIRANO K, IGARASHI S, DOI T, OSHIMA H

日本地熱学会誌   20 ( 1 )   54 - 54   1998.1

Resistivity structure of Aso caldera inferred from Magnetotelluric measurements (preliminary)

Takakura, S, T. Hashimoto, Y. Ogawa, T. Nishigaki

Conductivity Anomaly Research   ( 1998 )   225 - 232   1998

地殻活動と電磁気観測--広帯域MT法を用いた深部地殻比抵抗構造の研究--北海道東部地域について

佐藤 秀幸, 西田 泰典, 小川 康雄

Conductivity anomaly研究会論文集   ( 1998 )   201 - 208   1998

Study on deep crustal resistivity structure using wideband magnetotellurics. -In the case of eastern part of Hokkaido, Japan-

SATOH H., TANIMOTO K, MAEDA T., NISHIDA Y., TAKADA M., TAMURA M., OGAWA Y., NAGAO T.

97   220 - 224   1997.10

MT surveying in the Kakkonda geothermal area

OGAWA Yasuo, UCHIDA Toshihiro, TAKAKURA Shinichi

96   265 - 270   1997.5

Self-Potential Survey and Audio-Magnetotelluric Measurements in White Island Volcano, New Zealand

NISHI Y., ISHIDO T., MATSUSHIMA N., OGAWA Y., TOSHA T.

19 ( 2 )   104 - 105   1997.4

Joint Geothermal Studies in New Zealand

KIMBARA K, ISHIDO T, MURAOKA H, SUGIHARA M, NISHI Y, MATSUSHIMA N, TOSHA T, KOMAZAWA M, OGAWA Y, YASUDA A, MIYAZAKI J

日本地熱学会誌   19 ( 2 )   104 - 104   1997.4

Magnetotelluric法フィールドデータの最近の解析方法 (総特集 地球の活動と電磁気現象--行武毅教授退官記念号) -- (5章 電気伝導度構造)

小川 康雄

号外地球   ( 17 )   135 - 139   1997

AMT Survey at Usu Volcano

Matsushima N, Ogawa Y, Takakura S, Utsugi M, Hirano K, Igarashi M, Doi T, Oshima H

Programme and abstracts the Volcanological Society of Japan   1996 ( 2 )   159 - 159   1996.11

日光地域におけるMT観測

大谷冬彦, 本蔵義守, 松島政貴, 黒木英州, 小川康雄, 光畑裕司, 大志万直人, 坂中伸也, 橋本武志

Conductivity Anomaly研究会1996年論文集   121 - 127   1996

Development of an ocean bottom geomagnetic/electric station using undersea cables

MIYAZAKI Teruki, NAKATSUKA Tadashi, MURAKAMI Yutaka, OGAWA Yasuo

93   255 - 258   1995.10

A two-dimensional magnetotelluric inversion assuming Gaussian static shift

OGAWA Yasuo, UCHIDA Toshihiro

92   193 - 195   1995.6

仙岩澄川地域におけるTEM法調査とMT法デ-タのスタティックシフト補正

光畑 裕司, 小川 康雄

物理探査   47 ( 1 )   p11 - 23   1994.2

3次元性の強い MT 法データの広域的電磁誘導と局所的電場擾乱への分離-南部北上山地 MT トランセクトの例-

小川康雄

地質調査所月報   45 ( 12 )   703 - 713   1994

The electrical resistivity structure beneath the Kii-peninsula and the earthquake distributions.

藤田清士, 小川康雄, 山口覚, 堀史有, 宝谷博之, 後藤忠徳, 安川克己

日本列島下の3次元電気伝導度構造と地殻活動の研究1 平成5年度 No.05302022   99 - 104   1994

Audio-frequency magnetotelluric imaging of an active strike-slip fault

Y. Ogawa, M. Uyeshima, Y. Honkura, H. Utada, S. Koyama

Journal of Geomagnetism & Geoelectricity   46 ( 5 )   403 - 408   1994

The electrical conductivity structure beneath the Kii-peninsula. (3).