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Journal: |
Geophysical Research Letter 2011 No.17
clicks:220 |
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Title:
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Author:
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Dapeng Zhao, Zhouchuan Huang, Norihito Umino, Akira Hasegawa, Hiroo Kanamori |
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Adress: |
Department of Geophysics, Tohoku University, Sendai, Japan |
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Abstract:
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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. |
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Comment: |
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