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Comprehensive Basic Observational Research on the 2000 Eruption of Mt. Usu and Its Application for Mitigating Related Volcanic Disasters

Research Project

Project/Area Number 12800001
Research Category

Grant-in-Aid for Special Purposes

Allocation TypeSingle-year Grants
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

OKADA Hiromu  Hokkaido Univ. Grad School of Sci, Prof., 大学院・理学研究科, 教授 (40000872)

Co-Investigator(Kenkyū-buntansha) OSHIMA Hiromitsu  Hokkaido Univ. Grad. School Scl., Inst., 大学院・理学研究科, 助教授 (10213703)
KASAHARA Minoru  Hokkaido Univ. Grad. School Scl., Prof., 大学院・理学研究科, 教授 (40001846)
UI Tadahide  Hokkaido Univ. Grad. School Scl., Prof., 大学院・理学研究科, 教授 (10007164)
HIRABAYASHI Jun-ichi  Tokyo Inst. Tech., Volc. Fluid Res. Center, Prof, 火山流体研究センター, 教授 (30114888)
WATANABE Hidefumi  Univ. Tokyo, Earthq. Res. Inst., Prof, 地震研究科, 教授 (20113649)
Project Period (FY) 2000
Project Status Completed (Fiscal Year 2000)
Keywordsprediction of volcanic eruption / mitigation of volcanic disasters / dacite magma / Magmato-phreatic eruption / phreatic eruption / volcanic deformation / Mount. Usu / lava dome / 2000年有珠山噴火 / 火山災害 / 災害情報 / デイサイト質マグマ / 潜圧溶岩ドーム
Research Abstract

On the occasion of 2000 eruption of Mt. Usu, Hokkaido, Japan, prompt scientific advises based on the real-time research data and accumulated knowledge over decades encouraged officials and people in the area for conducting successful evacuation in time. Ca. 15,000 people evacuated and resulted economical and social impacts were very serious at first and central government opened local emergency center in Date City.
Members under this scientific program worked hard mostly based at temporary prefab observatory with collaborators over wide academic fields, discussing daily schedule and field gains, and submitting the basic knowledge daily to Mt. Usu Subcommittee of Coordinating Committee for Prediction of Volcanic Eruptions in Japan and Local Emergency Center. Basic knowledge integrated by our group was systematically communicated for the authority for the decision of evacuation cancellation and any difficult operations in risk-prone area. Direct explanation and recommendation to evacuees … More were another type of our academic tasks.
Main part of the results came from precise hypocenter determination, other observational results especially from the networks of air wave and GPS, various geodetic, geoelectrical, geomagnetic, geothermal, geochemical, geomorphorogical, geological studies in the field. Modeling the course of volcanic activity and subsurface magma intrusion process, advises for possible mudflows and their mitigation scheme were another concerned subjects by the group.
Termination of magmatic activity was clearly detected by the evidences of subsidence of the uplifted area and coincidental seismicity drop to background level. This mechanism was the same as that occurred 1977-1982 activity of Mt. Usu. Caution still need to the phenomena occurring at a few craters and surrounding limited area for the long-lasting geothermal phenomena.
Two countries, New Zealand and French sent investigation team to Mt. Usu and scientific results by our group were acknowledged by their reports as a common sense of volcano country. Less

Report

(2 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] 青山裕: "リアルタイム地震波データに用いるランニングスペクトル解析ソフトの開発"火山. 45. 323-329 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 古屋正人: "有珠山2000年噴火活動に対する緊急重力測定"東大地震研彙報. 76. 237-246 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hernandez, P.: "Carbon dioxide degassing by advective flow from Usu volcano, Japan"Science. 292. 83-86 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 平林順一: "有珠山2000年噴火の様式と活動の変化"自然災害科学. 19. 375-386 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 岡田弘: "火山とともに生きる-2000年有珠山噴火から学ぶ"日本林学会北海道支部論文集. 49. 1-7 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 森済: "2000年有珠山噴火の地殻活動と噴火活動について"災害科学. 19. 389-390 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 岡田弘他(編著): "有珠山(補遺その1)平成12年有珠山噴火"北海道庁(北海道防災会議). 61 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Aoyama, H.: "Development of running spectrum analysis software for real-time seismic data"Bull. Volcanol. Soc. Japan. 45. 323-329 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Furuya, M., Ohki, Y, Ohkubo, S., Maekawa, T., Oshima, H., and Shimizu, H.: "Urgent gravity measurements for the eruption of Usu volcano in 2000"Bull. Earthq. Res. Inst.. 76. 237-246 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hernandez, P. A., Notsu, K., Salazar, J. M., Mori, T., Natale, G, Okada, H., Virgili, G., Shimoike, Y. Sato, M. and Perez, N. M.: "Carbon dioxide degassing by advective flow from Usu volcano"Japan. Science. 292. 83-86 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hirabayashi, J., Abiko, T., Nogami, K., Kagiyama, T., Ohba, T., Maekawa, T., Suzuki, A., and Suzuki, T.: "Geochemical and geothermal study associated with Usu 2000 eruption, and changes of its activity"J. Japan Soc. Natur. Disaster Sci.. 19. 375-381 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Okada, H.: "Living with a volcano - lessons from the 2000 eruption of Mt. Usu"Rep. Hokkaido Branch Forestry Soc. Japan. 49. 1-7 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Mori, H. and Ui, T.: "Crustral deformation and eruptive activities of Mt. Usu in 2000"J. Japan Soc. Natur. Disaster Sci.. 19. 383-390 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 宇井忠英: "有珠井2000年噴火"火山. 45・3. 195-196 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 平林順一: "有珠山2000年噴火の様式と活動の変化"自然災害科学. 19・3. 375-381 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 青山裕: "リアルタイム地震波データに用いるテンニングスペクトル解析ソフトの開発"火山. 45・6. 323-329 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 大島弘光: "2000年有珠山噴火に伴う地震活動"日本地震学会ニュースレター. 12・2. 23-24 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2002-04-03   Modified: 2016-04-21  

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