Rchr

J-GLOBAL ID：201301013905960046 Update date: Mar. 04, 2026

Yoshihisa Iio

イイオヨシヒサ | Yoshihisa Iio

Affiliation and department：
Other affiliations (1)：

阿武山地震・防災サイエンスミュージアム

Research field (1)： Solid earth science

Research keywords (30)：断層 , 南アフリカ , 微小地震 , 地震観測 , 水 , 内陸地震 , 震源過程 , 減衰 , 誘発地震 , 震源スペクトル , 非弾性変形 , 比抵抗 , 地震準備過程 , ロックバースト , 山はね , 観測 , 長野県西部地震 , コーダ波 , 地震波速度 , メカニズム解 , 低速度異常 , 歪計 , 地震断層 , 長野県西部 , 応力 , 初期破壊過程 , ボアホ-ル , 初期破壊 , 金鉱山 , 極微小地震

Research theme for competitive and other funds (33)：

2022 - 2024 A new model of earthquake faulting that does not require high-pressure water and validation with high-sampling data
2021 - 2024 Understanding the physics of foreshocks based on dense seismic observation and seismicity model
2020 - 2024 天変地異のオープンサイエンス
2019 - 2020 地殻ダイナミクス -東北沖地震後の内陸変動の統一的理解-
2015 - 2020 Crustal dynamics -Unified understanding intra-island deformation after the Tohoku-oki earthquake

2018 - 2019 Comprehensive study on the 2018 Hokkaido Eastern Iburi Earthquake and its disaster

2014 - 2019 Clarification of true pictures of geofluids and their roles on the dynamics of the inland crust

2014 - 2019 Crustal Dynamics

2014 - 2019 Crustal dynamics-Unified understanding of intraisland deformation after the great Tohoku-oki earthquake-

2015 - 2018 To clarify the process by which intraplate earthquakes are generated -A dense seismic observation in the northern part of the South Island in New Zealand-

2016 - 2017 General study on the 2016 Kumamoto earthquake and related activities

2014 - 2017 Building Earthquake Science Museum for Effective Disaster Risk Communication

2011 - 2015 The lower crust immediately below intraplate earthquake faults is weak? -A dense seismic observation in the northern part of the South Island in New Zealand-

2009 - 2014 Multidisciplinary monitoring of preparation and generation of earthquakes at M2 sources in South African gold mines

2010 - 2010 Comprehensive studies for the 2011 off the Pacific coast of Tohoku earthquake

2007 - 2009 Why do earthquakes occur? -to clarify the true role of crustal fluids-

2008 - 2008 Study on 2008 Iwate-Miyagi Inland Earthquake (M7.2)

2006 - 2008 Behavior of Rock Mass Behavior in flooded gold minesin South Africa and India

2006 - 2008 Very high frequency seismology in deep South African gold mines - from1 cm to 200 m

2003 - 2005 Direct measurements of frictional heating by earthquake faulting

2002 - 2005 Research on earthquake preparation process - Accomplishment of observation networks installed very close to earthquake sources in South Africa gold mines -

2000 - 2001 Implication of researches on prediction of earthquake and volcano eruptions to disaster prevention research

1993 - 1995 地震発生の制御実験-南アフリカ金鉱山における-

1992 - 1993 震源断層に達するボアホールにおける準静的破壊過程の観測

1992 - 1992 火山噴火の前兆としての地震発生と広域応力場の変化ーピナツボ火山噴火ー

1992 - 1992 1992年ニカラグマにおける地震とその津波に関する調査研究

1991 - 1991 フィリピン地震(1990.7.16)から学ぶ都市直下型活断層と都市震災の研究

1991 - 1991 内陸地震活動の総括的評価に関する研究

1990 - 1991 High frequency seismic observation at the borehole which reaches an earthquake fault

1988 - 1989 Multidisciplinary Research on Fault Activity in the Western Part of the North Anatolian Fault Zone (The Second Phase)

1988 - 1989 フラクタルと地震の数理

1987 - 1987 超極微小地震の観測

1984 - 1986 Microfilm of Historical Seismograms

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Papers (163)：

Yoshihisa Iio, Shinya Katoh, Kazuhide Tomisaka, Masayo Sawada, Shunta Noda, Issei Doi. Stress field near the fault edges of a medium-sized earthquake -Possibility of stress relaxation occurring before the earthquake. Tectonophysics. 2025. 910. 230825-230825
Shinya Katoh, Yoshihisa Iio, Hiromichi Nagao, Hiroshi Katao, Masayo Sawada, Kazuhide Tomisaka. SegPhase: development of arrival time picking models for Japan’s seismic network using the hierarchical vision transformer. Earth, Planets and Space. 2025. 77. 1
Yoshihisa Iio. New weak fault model that does not require high pore pressure. EARTH AND PLANETARY SCIENCE LETTERS. 2024. 646
Satoshi Matsumoto, Yoshihisa Iio, Shinichi Sakai, Aitaro Kato. Strength dependency of frequency-magnitude distribution in earthquakes and implications for stress state criticality. Nature Communications. 2024
Tomomi Okada, Miu Matsuno, Satoshi Matsumoto, Yuta Kawamura, Yoshihisa IIo, Tadashi Sato, Ayaka Tagami, Satoshi Hirahara, Shuutoku Kimura, Stephen Bannister, et al. Complexity of the 2016 M 7.8 Kaikōura, New Zealand, earthquake from seismic observation: inferences of overpressured fluid involvement. 2024

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MISC (192)：

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Patents (2)：

速度センサ
時刻装置および可搬型電子機器

Books (6)：

内陸地震(分担執筆)
教育現場の防災読本(京大出版会) 2018
くりかえす巨大地震(分担執筆)
巨大地震なぜ起こる?そのときどうする? (楽しい調べ学習シリーズ)(PHP出版) 2014
内陸地震の発生メカニズム(分担執筆)
自然災害と防災の事典寶馨・戸田圭一・橋本学編(丸善出版) 2012
内陸地震はなぜ起こるのか?
近未来社 2009
Stress drop distribution of microearthquakes at Outaki, Nagano prefecture, Japan obtained from waveform data,
Seismotectonics in convergent plate boundary, Eds. Y. Fujinawa and A. Yoshida, TERRAPUB 2003

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Lectures and oral presentations (12)：

満点計画の15年-地震計の開発からデータ解析まで-
(日本地震工学会・大会-2021 2021)
防災教育における「参加型」・「伝達型」モデルの関係性
(日本災害情報学会第19回学会大会京都大学 2017)
Spatial heterogeneity of crustal stress
(IAG-IASPEI 2017 2017)
Reconstructuring disaster education based on legitimate peripheral participation theory: A new model of disaster science communication.
(第35回自然災害学会学術講演会静岡市 2016)
Fluid Path Below a Seismogenic Fault Estimated by S-Wave Reflection Analysis
(AOGS 12th Annual meeting 2016)

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Work history (8)：

2024/04 - 現在 Tohoku University Graduate School of Science
2007 - 2023/03 Kyoto University Disaster Prevention Research Institute
2002/09 - Disaster Prevention Research Institute Kyoto University Research Center for Earthquake Prediction Associate Professor
2000/04 - - Associate Professor
1996/07 - - -

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Committee career (2)：

2016/04 - 2025/03 文部科学省教科書検定専門委員
2007/04 - 2023/03 地震調査研究推進本部地震調査委員会委員

Association Membership(s) (2)：

日本活断層学会 , 日本地震学会

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