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

Fig. 3

From: Deep crustal structure around the Atotsugawa fault system, central Japan: A weak zone below the seismogenic zone and its role in earthquake generation

Fig. 3

(a) Map view and (b) cross-sectional view of distribution of earthquakes used in this study. The gray scale represents the focal depth of earthquakes. Circles denote 811 earthquakes occurring during the period of temporary observations from May 2005 to July 2007. Triangles represent 601 earthquakes that occurred from August 2007 to May 2008, and squares denote 1,541 earthquakes included in Nakajima and Hasegawa (2007a).

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