18 research outputs found
Structural heterogeneity in the megathrust zone and mechanism of the 2011 Tohoku-oki earthquake (Mw 9.0)
Get PDFThe 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
Bright S-Wave Reflections Extensively Distributed Beneath the Backbone Range of the NE Japan Arc (Extended Abstract)
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Estimation of Thickness of a Low-Velocity Layer at the Surface of the Descending Oceanic Plate beneath the Northeastern Japan Arc by using Synthesized PS-wave
Get PDFCrustal heterogeneity around the Nagamachi-Rifu fault, northeastern Japan, as inferred from travel-time tomography
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Foreshock and Aftershock Sequence of 1998 M5.0 Earthquake in Sendai, NE Japan, and its Implications for Earthquake Nucleation and Nagamachi-Rifu Fault Activity (Abstract)
Get PDFEstimation of Thickness of a Low-Velocity Layer at the Surface of the Descending Oceanic Plate beneath the Northeastern Japan Arc by using Synthesized PS-wave
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