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Earth, Planets and Space
Fig. 1 | Earth, Planets and Space

Fig. 1

From: A 3D electrical resistivity model around the focal zone of the 2017 southern Nagano Prefecture earthquake (MJMA 5.6): implications for relationship between seismicity and crustal heterogeneity

Fig. 1

a Index map. Red triangles denote active volcanos. Thick black lines show plate boundaries. b Topographic map of the study area with MT sites and seismicity. Cyan diamonds denote MT sites. Dark red and light red circles denote epicenters before and after June 24, 2017, respectively, manually estimated by Nagoya University (2017). The yellow dashed line represents the area of crustal deformation (Kimata et al. 2004). White triangles denote sampling locations of spring water indicating lower crust or mantle origin (Nishio et al. 2010)

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