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Fig. 6 | Earth, Planets and Space

Fig. 6

From: Spatial heterogeneities in tectonic stress in Kyushu, Japan and their relation to a major shear zone

Fig. 6

(Upper left) Schematic illustration of the stress field and shear zone at Kyushu Island. Behavior of the active fault, as determined by the AIST, is plotted by the color segments that are defined in the legend. Solid arrows indicate the direction of the behavior of the shear zone. Red arrows show the extensional force acting on the B–U area. (Upper right) Bouguer anomaly map assuming a terrain density of 2.3 g/cm3 (copyright for the basemaps of the gravity maps belongs to the Geospatial Information Authority of Japan (GSI); the map is licensed under the Creative Commons Attribution 2.1 Japan License). (Lower) Fault planes of micro-earthquakes (green) and active fault traces (purple) in the area surrounded by the blue dashed line in the upper figure. The planes were found to be oblique to the active fault traces

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