Tsunami generation due to submarine volcanic eruptions with phreatomagmatic explosion or caldera subsidence

Taro Kakinuma, Hiroshi Matsumoto, Kei Yamashita, Yudai Yanagi

研究成果: Conference contribution

抄録

An index of submarine volcanic explosivity concerning tsunami generation has been proposed on the basis of the relationship between phreatomagmatic explosion and resultant initial waveform of tsunamis. In the generation process of tsunamis due to phreatomagmatic explosion, the seawater touches magma of high temperature, after which the water evaporates in an instant with explosive increase of volume. We assume the value of this index specifically to simulate tsunamis caused by submarine volcanic eruption in Kagoshima Bay, where submarine explosion has been observed. Furthermore, tsunamis due to subsidence of a caldera near a volcanic mountain in the same bay are numerically simulated using an initial tsunami profile assumed without discussion about the emission process of magma out of a chamber through submarine volcanic eruption.

本文言語English
ホスト出版物のタイトルProceedings of the 34th International Conference on Coastal Engineering, ICCE 2014
編集者Patrick Lynett
出版社American Society of Civil Engineers (ASCE)
ISBN(電子版)9780989661126
出版ステータスPublished - 2014
イベント34th International Conference on Coastal Engineering, ICCE 2014 - Seoul, Korea, Republic of
継続期間: 2014 6 152014 6 20

出版物シリーズ

名前Proceedings of the Coastal Engineering Conference
2014-January
ISSN(印刷版)0161-3782

Other

Other34th International Conference on Coastal Engineering, ICCE 2014
国/地域Korea, Republic of
CitySeoul
Period14/6/1514/6/20

ASJC Scopus subject areas

  • 土木構造工学
  • 海洋工学
  • 海洋学

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