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Earth, Planets and Space
Fig. 7. | Earth, Planets and Space

Fig. 7.

From: P-wave velocity structure in the southernmost source region of the 2011 Tohoku earthquakes, off the Boso Peninsula, deduced by an ocean bottom seismographic survey

Fig. 7.

Comparison of the position of the profile in this study with the aftershock epicenter distribution determined by the OBS network, focal mechanisms of aftershocks obtained by the OBS network (Shinohara et al., 2012) and by the automated moment tensor determination using the land seismic network (F-net) (Fukuyama et al., 1998), the slip distribution during the mainshock using strong motion data (Yoshida et al., 2011) and the slip distribution of the afterslip by the land GPS network as of December 2011 (Ozawa et al., 2011; Geospatial Information Authority of Japan, 2011). The red and yellow contours indicate the amount of co-seismic slips and afterslip, respectively. The solid circles denote the epicenters of aftershocks and color indicates the event depth. Grey circles denote epicenters of aftershocks determined by the JMA from March to June, 2011. The numbers along the profile represent the distance from the southern end.

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