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Rupture process of the 2011 Tohoku earthquake from the joint inversion of teleseismic and GPS data



Rupture process of the 2011 Tohoku earthquake from the joint inversion of teleseismic and GPS data



Earthquake Science 25(2): 129-135



Teleseismic and GPS data were jointly inverted for the rupture process of the 2011 Tohoku earthquake. The inversion results show that it is a bilateral rupture event with an average rupture velocity less than 2.0 km/s along the fault strike direction. The source rupture process consists of three sub-events, the first occurred near the hypocenter and the rest two ruptured along the up-dip direction and broke the sea bed, causing a maximum slip of about 30 m. The large-scale sea bed breakage may account for the tremendous tsunami disaster which resulted in most of the death and missing in this mega earthquake.

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Accession: 036680544

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DOI: 10.1007/s11589-012-0839-1


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