Specific features of the appearance of seismotectonic deformations during the genesis of March 11, 2011, Tohoku earthquake source

The results of investigating the preparation zone of the catastrophic earthquake of March 11, 2011, near the eastern coast of Honshu Island are presented. A retrospective analysis of the focal mechanisms of deep earthquakes in the western part of the Pacific Ocean made it possible to reveal their in...

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Bibliographic Details
Published in:Izvestiya. Atmospheric and oceanic physics 2011-12, Vol.47 (8), p.962-970
Main Authors: Rogozhin, E. A., Yunga, S. L., Rodina, S. N.
Format: Article
Language:English
Subjects:
Climatology
Deformation
Earth and Environmental Science
Earth Sciences
Earthquakes
Geophysics/Geodesy
Marine
Plate tectonics
Seismic activity
Seismology
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Summary:The results of investigating the preparation zone of the catastrophic earthquake of March 11, 2011, near the eastern coast of Honshu Island are presented. A retrospective analysis of the focal mechanisms of deep earthquakes in the western part of the Pacific Ocean made it possible to reveal their influence on the zone of the Tohoku earthquake source. The preparation of this earthquake is also investigated within an analysis of the seismotectonic deformation processes at the regional level, which includes an estimation of the temporal trends of some key parameters, as well as the detection of their variations and the spatial confinement of anomalies to the source zone.
ISSN:0001-4338
1555-628X
DOI:10.1134/S0001433811080081