Structural heterogeneity in the megathrust zone and mechanism of the 2011 Tohoku-oki earthquake (Mw 9.0)

Dapeng Zhao, Zhouchuan Huang, Norihito Umino, Akira Hasegawa, Hiroo Kanamori

研究成果: Article査読

155 被引用数 (Scopus)

抄録

The great 2011 Tohoku-oki earthquake (Mw 9.0) and its 339 foreshocks and 5,609 aftershocks (9-27 March 2011) were relocated using a three-dimensional seismic velocity model and local P and S wave arrival times. The distribution of relocated hypocenters was compared with a tomographic image of the Northeast Japan forearc. The comparison indicates that the rupture nucleation of the largest events in the Tohoku-oki sequence, including the mainshock, was controlled by structural heterogeneities in the megathrust zone.

本文言語English
論文番号L17308
ジャーナルGeophysical Research Letters
38
17
DOI
出版ステータスPublished - 2011 9月 1

ASJC Scopus subject areas

  • 地球物理学
  • 地球惑星科学(全般)

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