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Fig. 1 | Earth, Planets and Space

Fig. 1

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

Fig. 1

Map showing (left) the location of Kyushu Island and (right) the seismic stations and hypocenters of earthquakes originating at depths shallower than 30 km. Events indicated by gray circles occurred from January 1993 to August 2011. The size of the marker is proportional to its magnitude, as shown in the lower-left scale. Crosses denote seismic stations that recorded the data used in this analysis. Triangles and purple segments indicate the active volcanoes and active faults in the study area, respectively. The Philippine Sea slab (PHS) is subducting under the Nankai Trough or the Ryukyu Trench in the direction of the yellow arrow in the map on the left-hand side

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