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A study for evaluating near field strong ground motion depending on the presence or absence of surface earthquake fault

Research Project

Project/Area Number 19H02406
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 25030:Disaster prevention engineering-related
Research InstitutionTottori University

Principal Investigator

KAGAWA Takao  鳥取大学, 工学研究科, 教授 (50450911)

Co-Investigator(Kenkyū-buntansha) 野口 竜也  鳥取大学, 工学研究科, 准教授 (20379655)
池田 隆明  長岡技術科学大学, 工学研究科, 教授 (40443650)
盛川 仁  東京工業大学, 環境・社会理工学院, 教授 (60273463)
吉見 雅行  国立研究開発法人産業技術総合研究所, 地質調査総合センター, 主任研究員 (00358417)
後藤 浩之  京都大学, 防災研究所, 准教授 (70452323)
吉田 昌平  株式会社大崎総合研究所, 研究部, 研究職(主任研究員) (80868042)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2020: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2019: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Keywords地表地震断層 / 震源近傍域 / 強震動
Outline of Research at the Start

地表地震断層を伴わない地震の地震動が既往観測記録を統計解析した平均よりも有意に大きい一方で,地表地震断層を伴う場合は平均よりも有意に小さいとの既往研究がある。また,地表地震断層ごく近傍で断層変位による構造物被害が見られる場合も地震動による被害が小さい事例が散見される。
本研究では,地表地震断層の有無を指標に,震源近傍の強震動を生じる断層破壊過程,観測点および被害地点の地盤条件を精査し,(1) 地表地震断層ごく近傍で地震動が小さいことの検証とその要因,(2) 地表地震断層を伴わない場合の地震動が大きい要因,を網羅的に分析し,得られた知見からその再現を試みる。

Outline of Final Research Achievements

In the area close to surface faults, there were some cases where the damage caused by the earthquake ground motion was smaller than that in the surrounding area. In order to investigate the issue, we have studied both the dynamic fault rupture model with surface fault and the effect of fault rupture zone on seismic motion.
It was confirmed that the kinematic hypothesis derived from previous earthquakes based on the presence or absence of surface faults can be dynamically reproduced. It was also shown that the shallow slip velocity might be reduced by giving the surface effect and the depth dependent stress drop to the ideal earthquake models with a hierarchical fault structure. In addition, geophysical exploration around surface faults and sampling in the fault rupture zone suggested that the shuttered material in fault rupture zone might reduce strong ground motion.
It was shown that the interaction of the effects may reduce the earthquake damage in the area close to the surface fault.

Academic Significance and Societal Importance of the Research Achievements

大地震による断層近傍の地震動は大きな被害をもたらすため,その特性を把握しておくことは重要である。本研究では,階層構造を持つ断層に地表効果を導入した動力学的な地震像を新たに構築したことが今後の震源近傍地震動研究の発展に寄与するものと考えられる。また,断層破砕帯におけるS波探査およびボーリングによる試料採取と動的変形特性の把握は既往実施例のほぼ無い試みであり,得られた結果も興味深く今後の活用が期待される。
加えて,明瞭な活断層のみならず,地表地震断層を伴わないひと回り小さな規模であっても震動被害を生じ得ることが示唆され,地域の地震環境に即した地震動予測の必要性を示したことが社会的意義となっている。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (37 results)

All 2022 2021 2020 2019

All Journal Article (13 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 13 results,  Open Access: 10 results) Presentation (24 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] GRASP OF GROUND MOTION CHARACTERISTICS BASED ON DENSE MICROTREMOR OBSERVATIONS AT THE SHIKANO-YOSHIOKA FAULT OF THE 1943 TOTTORI EARTHQUAKE, JAPAN2021

    • Author(s)
      野口竜也, 小林和生, 西村武, 香川敬生
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

      Volume: 77 Issue: 4 Pages: I_617-I_625

    • DOI

      10.2208/jscejseee.77.4_I_617

    • NAID

      130008067167

    • ISSN
      2185-4653
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] THE RELATIONSHIP BETWEEN HOUSING DAMAGES AND GROUND MOTION CHARACTERISTICS DUE TO THE 2016 CENTRAL TOTTORI PREFECTURE EARTHQUAKE, JAPAN2021

    • Author(s)
      西村武, 野口竜也, 香川敬生
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

      Volume: 77 Issue: 4 Pages: I_321-I_336

    • DOI

      10.2208/jscejseee.77.4_I_321

    • NAID

      130008067140

    • ISSN
      2185-4653
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A STUDY ON THE BUILDING DAMAGE DISTRIBUTION IN TAKATSUKI AND IBARAKI CITY DURING THE 2018 NORTHERN OSAKA EARTHQUAKE CONSIDERING GEOGRAPHIC FACTORS2021

    • Author(s)
      浅野晃太,後藤浩之,奥村与志弘,澤田純男
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

      Volume: 77 Issue: 4 Pages: I_638-I_648

    • DOI

      10.2208/jscejseee.77.4_I_638

    • NAID

      130008067157

    • ISSN
      2185-4653
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Records of Extreme Ground Accelerations during the 2011 Christchurch Earthquake Sequence Contaminated by a Nonlinear, Soil?Structure Interaction2021

    • Author(s)
      Goto Hiroyuki、Kaneko Yoshihiro、Naguit Muriel、Young John
    • Journal Title

      Bulletin of the Seismological Society of America

      Volume: 111 Issue: 2 Pages: 704-722

    • DOI

      10.1785/0120200337

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 2000年鳥取県西部地震による気象庁境港観測点における非線形地盤応答特性と境港市役所における観測記録の再現2020

    • Author(s)
      香川敬生,星山賢太郎,野口竜也
    • Journal Title

      土木学会論文集A1

      Volume: 76 Issue: 4 Pages: I_163-I_171

    • DOI

      10.2208/jscejseee.76.4_i_163

    • NAID

      130007897875

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] EVALUATION OF MAXIMUM RESPONSE DEFORMATION ANGLE OF WOODEN BUILDINGS BASED ON OBSERVATION RECORDS OF CRUSTAL EARTHQUAKES IN 2018 AND 20192020

    • Author(s)
      西川隼人,野口竜也,池本敏和,梅田貴仁,杉山敬亮,宮島昌克
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

      Volume: 76 Issue: 4 Pages: I_582-I_595

    • DOI

      10.2208/jscejseee.76.4_I_582

    • NAID

      130007897934

    • ISSN
      2185-4653
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] XFEM SIMULATION OF RUPTURE DIRECTION ON BRANCHING FAULT2020

    • Author(s)
      YAMASHITA Daiki、GOTO Hiroyuki、SAWADA Sumio
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))

      Volume: 76 Issue: 2 Pages: I_217-I_224

    • DOI

      10.2208/jscejam.76.2_I_217

    • NAID

      130007980153

    • ISSN
      2185-4661
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] OBSERVATION OF AFTERSHOCK DUE TO THE 2018 WESTERN SHIMANE PREFECTURE EARTHQUAKE AND MICROTREMOR OBSERVATION IN THE STRUCTURAL DAMAGE AREA OF SHIMANE PREFECTURE, JAPAN2019

    • Author(s)
      野口竜也・香川敬生・吉田昌平・山口仁
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

      Volume: 75 Issue: 4 Pages: I_701-I_713

    • DOI

      10.2208/jscejseee.75.I_701

    • NAID

      130007710849

    • ISSN
      2185-4653
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Relationship between Building Damage and Site Amplification from Microtremor Observation in Kurokawa Area, Minami Aso Village, Kumamoto, Japan2019

    • Author(s)
      吉田昌平・野口竜也・香川敬生
    • Journal Title

      Journal of Japan Association for Earthquake Engineering

      Volume: 19 Issue: 6 Pages: 6_55-6_67

    • DOI

      10.5610/jaee.19.6_55

    • NAID

      130007739800

    • ISSN
      1884-6246
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Estimation of Subsurface Structure and Characteristics of Ground Vibration Based on Microtremor and Seismic Observation in the Central Tottori Prefecture, Japan2019

    • Author(s)
      野口竜也・西川隼人・吉田昌平・香川敬生
    • Journal Title

      Journal of Japan Association for Earthquake Engineering

      Volume: 19 Issue: 6 Pages: 6_258-6_271

    • DOI

      10.5610/jaee.19.6_258

    • NAID

      130007739791

    • ISSN
      1884-6246
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Study on an Empirical Formula for Amplification Factor Based on Fundamental Peak Frequency and Amplitude of Microtremor H/V2019

    • Author(s)
      西川隼人, 野口竜也, 宮島昌克, 香川敬生
    • Journal Title

      Journal of Japan Association for Earthquake Engineering

      Volume: 19 Issue: 7 Pages: 7_41-7_55

    • DOI

      10.5610/jaee.19.7_41

    • NAID

      130007752722

    • ISSN
      1884-6246
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Delayed Subevents During the M W 6.2 First Shock of the 2016 Kumamoto, Japan, Earthquake2019

    • Author(s)
      Goto Hiroyuki、Toyomasu Aki、Sawada Sumio
    • Journal Title

      Journal of Geophysical Research: Solid Earth

      Volume: 124 Issue: 12 Pages: 13112-13123

    • DOI

      10.1029/2019jb018583

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Extreme Accelerations During Earthquakes Caused by Elastic Flapping Effect2019

    • Author(s)
      Hiroyuki Goto, Yoshihiro Kaneko, John Young, Hamish Avery, Len Damiano
    • Journal Title

      Scientific Reports

      Volume: 9

    • NAID

      120006715539

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 階層構造を持つ震源モデルにより生成される地表断層地震と潜在断層地震の特性2022

    • Author(s)
      後藤浩之,香川敬生
    • Organizer
      令和3年度京都大学防災研究所研究発表講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 吉岡・鹿野断層近傍における地盤震動特性の変化とその要因の検討2021

    • Author(s)
      小林和生,蘆田龍,西村武,野口竜也,香川敬生
    • Organizer
      第73回 2021年度(令和3年)土木学会中国支部部研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Subsurface structure and ground motion characteristics near active fault, Case study on the Shikano and Yoshioka faults, Japan2021

    • Author(s)
      Tatsuya Noguchi,Takao Kagawa,Kazuki Kobayashi,Isamu Nishimura
    • Organizer
      6th IASPEI / IAEE International Symposium: Effects of Surface Geology on Seismic Motion
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Study on non-linear soil characteristics using strong and weak motion records2021

    • Author(s)
      Takao Kagawa, Tatsuya Noguchi
    • Organizer
      17th World Conference on Earthquake Engineering, 17WCEE
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 中央構造線三野断層の断層破砕帯での動的変形特性2021

    • Author(s)
      香川敬生,木村一成
    • Organizer
      日本地震学会2021年度秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 1943年鳥取地震による地震断層近傍における微動探査-鳥取市宮谷・大塚地区-2021

    • Author(s)
      野口竜也,蘆田龍,小林和生,西村武,吉川菜緒,香川敬生
    • Organizer
      日本地震学会2021年度秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 断層破砕帯の震動特性 -中央構造線断層系三野断層-2021

    • Author(s)
      香川敬生,木村一成
    • Organizer
      日本活断層学会2021年度秋季学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 微動観測に基づく吉岡断層ごく近傍の地盤構造推定及び地盤震動特性の把握2021

    • Author(s)
      西村武, 吉川菜緒, 野口竜也, 香川敬生
    • Organizer
      日本地震工学会・大会-2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] 2018年大阪府北部の地震における高槻市・茨木市の建物被害分布と要因に関する地理学的考察2021

    • Author(s)
      浅野晃太,後藤浩之,奥村与志弘,澤田純男
    • Organizer
      令和2年度京都大学防災研究所研究発表講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 分岐断層の破壊進展方向に関するXFEMシミュレーション2021

    • Author(s)
      山下大輝,後藤浩之,澤田純男
    • Organizer
      令和2年度京都大学防災研究所研究発表講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 1943年鳥取地震で出現した鹿野断層におけるS波反射法地震探査2020

    • Author(s)
      香川敬生,野口竜也,山田浩二,竹本哲也
    • Organizer
      JpGU-AGU Joint Meeting
    • Related Report
      2020 Annual Research Report
  • [Presentation] 2016年鳥取県中部の地震の被害地域における地盤構造推定と地盤震動特性の把握2020

    • Author(s)
      西村武,野口竜也,香川敬生
    • Organizer
      JpGU-AGU Joint Meeting
    • Related Report
      2020 Annual Research Report
  • [Presentation] 1943年鳥取地震の鹿野断層における稠密微動観測2020

    • Author(s)
      野口竜也,小林和生,岡野三里,西村武,香川敬生
    • Organizer
      JpGU-AGU Joint Meeting
    • Related Report
      2020 Annual Research Report
  • [Presentation] 稠密微動探査による1943年鳥取地震の鹿野断層ごく近傍における地盤震動特性の把握2020

    • Author(s)
      小林和生,岡野三里,西村武,野口竜也,香川敬生
    • Organizer
      土木学会全国大会第75回年次学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] S波反射法地震探査および常時微動を用いた1943年鳥取地震で出現した鹿野断層近傍の地盤構造2020

    • Author(s)
      香川敬生,野口竜也,山田浩二,竹本哲也
    • Organizer
      日本地震学会2020年度秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 1943年鳥取地震の鹿野・吉岡断層における稠密微動観測に基づく地盤震動特性の把握2020

    • Author(s)
      野口竜也,小林和生,西村武,香川敬生
    • Organizer
      第40回土木学会地震工学研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] The origin of a strong, near-fault velocity pulse during a surface-breaking earthquake2020

    • Author(s)
      Yoshihiro Kaneko, Hiroyuki Goto
    • Organizer
      AGU Fall Meeting 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 1943年鳥取地震で出現した鹿野断層におけるS波反射法地震探査2020

    • Author(s)
      香川敬生,野口竜也,山田浩二,竹本哲也
    • Organizer
      日本地球惑星科学連合大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 平成30年北海道胆振東部地震の被害地域における微動観測および臨時地震観測2019

    • Author(s)
      野口竜也,西村武,小野祐輔,河野勝宜,日比慧慎
    • Organizer
      土木学会第39回地震工学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 鳥取県湯梨浜町小鹿谷・高辻地区の稠密微動観測による地盤構造の推定2019

    • Author(s)
      西村武,野口竜也,香川敬生
    • Organizer
      日本地震学会2019年度秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 水晶振動子による加速度センサの微動観測への適用性に関する検討2019

    • Author(s)
      松田滋夫・中仙道和之・盛川仁・飯山かほり・坂井公俊
    • Organizer
      土木学会第39回地震工学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Estimation of phase velocity using an array with arbitrary shape2019

    • Author(s)
      Zhang, H., Morikawa, H., Iiyama, K.
    • Organizer
      日本地震学会2019年度秋季大会
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 分岐断層の破壊進展方向に関するXFEMシミュレーション2019

    • Author(s)
      山下大輝,後藤浩之,澤田純男
    • Organizer
      日本地震学会2019年度秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 平成28年熊本地震前震における後続パルス波を再現する3次元断層モデル2019

    • Author(s)
      豊増明希,後藤浩之,澤田純男
    • Organizer
      令和元年度土木学会全国大会
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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