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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: Influence of crustal lithology and the thermal state on microseismicity in the Wakayama region, southern Honshu, Japan

Fig. 3

Bouguer gravity anomalies in the Wakayama region (Geological Survey of Japan 2013). Left panel: Map view of the Bouguer anomalies. The contour interval is 2 mGal. A density of 2.67 g cm–3 is used to calculate the Bouguer anomalies. The two dashed red lines indicate the boundaries between the spotted, non-spotted, and Mikabu zones from north to south. Right panel: Gravity model and best-fit 2D density structure model along survey line b–b’ (see Additional file 1: Fig. S5 for lines a–a’, c–c’, d–d’, and e–e’). The upper panel compares the detrended observed anomalies (red cross symbols) and calculated anomalies (cyan plus symbols), as synthesized from the 2D density structure model in the lower panel. The assumed densities are 2.67 g cm–3 for the background and 2.83 g cm–3 for the regions in green

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