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Fig. 5 | Earth, Planets and Space

Fig. 5

From: Structured regularization based velocity structure estimation in local earthquake tomography for the adaptation to velocity discontinuities

Fig. 5

a Anomalies of the estimated velocities from the baseline velocities in several layers for the estimation methods. Dots represent grid points. b Locations of relocated hypocenters in map-view (left) and cross-sectional view along a north–south profile (right). Grey and red circles represent the true (initial) and relocated hypocenters, respectively. East, north, and down directions are positive. The origin of the coordinates is \({35.25}^{\circ }\) N, \({138.25}^{\circ }\) E, and 0 km depth

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