兵庫県南部地震時に刻まれた野島断層の湾曲した断層条線について

書誌事項

タイトル別名
  • On the Curved Striations of Nojima Seismic Fault Engraved at the 1995 Hyogoken-Nambu Earthquake, Japan
  • ヒョウゴケン ナンブ ジシンジ ニ キザマレ タ ノジマ ダンソウ ノ ワンキ

この論文をさがす

抄録

The January 17, 1995 Hyogoken-Nambu earthquake (Japan Meteorological Agency magnitude of 7.2) produced surface rupture with a maximum right-lateral displacement of 2.1m and a maximum SE-up displacement of 1.4m on the Nojima fault, which runs along the northwest shore of Awaji Island. All the fault striations observed at 10 localities are horizontal, or more or less inclined northeastward. It is noteworthy that the fault striations on the up-thrown plane at 2 localities (Hirabayashi and Ogura) are convex downward, suggesting that the instantaneous slip vector changed from high to low angle through the rupture process. This curious phenomenon is reasonably explained by the temporal splitting of anti-plane mode of shear dislocation from in-plane mode which is realized for the dynamic growth of a mixed-mode shear crack at a trans-Rayleigh rupture speed and hence at a low shear stress [ANDREWS (1994)].

収録刊行物

  • 地震 第2輯

    地震 第2輯 49 (4), 451-460, 1997

    公益社団法人 日本地震学会

被引用文献 (4)*注記

もっと見る

参考文献 (17)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ