日本沿岸における1996年6月10日アリューシャン津波の様相

• 羽鳥 徳太郎

書誌事項

タイトル別名

• Characteristics of the Aleutian Tsunami of June 10, 1996 Observed along the Coast of Japan
• ニホン エンガン ニ オケル 1996ネン 6ガツ 10ニチ アリューシャン

抄録

A large tsunamigenic earthquake occurred off Adak Island at 4h 03m (UT), June 10, 1996. According to USGS, the epicenter is 51.564°N, 177.632°W with earthquake magnitude M_S=7.6. Four hour later, small tsunami (double amplitude: 10-25cm, wave period: about 20min) was observed at the Japanese tide stations. By use of the diagram of the attenuation of wave-height with distance, tsunami magnitude on the Imamura-Iida scale is estimated to be m=2.0, which the value is similar to that of the 1986 Aleutian tsunami. The observed amplitudes in Japan for the past six Aleutian tsunamis were about 1/4 times smaller than those at the Hawaiian Islands. The directivity of tsunamis toward Japan is small, but in case of the source areas locating the East longitude region becomes effective. The average velocities of the maximum wave arriving in the Japanese Islands are scattered in the range of 240km/h to 470km/h. The velocity of large tsunamis (1946, 1957 and 1965) is rather slow, suggesting the propagation of edge waves along the continental slope.

収録刊行物

• 地震　第２輯

  地震　第２輯 51 (1), 75-82, 1998

  公益社団法人 日本地震学会

キーワード

• Aleutian tsunamis
• Tsunami magnitude
• Tsunami heights in Japan

詳細情報

• CRID: 1390001204306915200
• NII論文ID: 10002501982
• NII書誌ID: AN00305741
• DOI: 10.4294/zisin1948.51.1_75
• ISSN: 18839029
• ISSN: 2186599X
• ISSN: 00371114
• ISSN: http://id.crossref.org/issn/00371114
• NDL書誌ID: 4515637
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4515637
• Web Site: https://www.jstage.jst.go.jp/article/zisin1948/51/1/51_1_75/_pdf
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可