Surface rupture of the 2008 M6.9 Iwate-Miyagi Nairiku Earthquake at Aratozawa dam : Reverse fault reactivation of a late Miocene caldera-collapse normal fault

• OSOZAWA Soichi

  Department of Earth Sciences, Graduate School of Science, Tohoku University

Bibliographic Information

Other Title

• 荒砥沢ダムにおける2008年岩手・宮城内陸地震(M6.9)の地表地震断層 : 後期中新世カルデラ縁正断層が再動した逆断層
• アラト ザワ ダム ニ オケル 2008ネン イワテ ミヤギ ナイリク ジシン M6 9 ノ チヒョウ ジシン ダンソウ コウキ チュウシンセイ カルデラエン セイ ダンソウ ガ サイドウ シタ ギャクダンソウ

Abstract

The 2008 M6.9 Iwate-Miyagi Nairuku earthquake generated a reverse-fault surface rupture that was observed at the Aratozawa dam site area. This faulting reactivated a normal fault formed by late Miocene caldera collapse. The earthquake triggered numerous and voluminous landslides in the hanging wall of the fault, upstream of Aratozawa dam.

Journal

• Earth Science (Chikyu Kagaku)

  Earth Science (Chikyu Kagaku) 63 (5), 321-326, 2009

  The Association for the Geological Collaboration in Japan

Keywords

• The 2008 M6.9 Iwate-Miyagi Nairiku Earthquake
• Aratozawa dam site
• earthquake surface rupture
• reverse fault
• caldera-collapse normal fault
• reactivation
• voluminous land slide

Details

• CRID: 1390001204234283392
• NII Article ID: 110007359522
• NII Book ID: AN00141269
• DOI: 10.15080/agcjchikyukagaku.63.5_321
• ISSN: 21897212
• ISSN: 03666611
• NDL BIB ID: 10448567
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10448567
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed