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

Fig. 3

From: Temporal change in seismic wave attenuation using highly stable vibration sources

Fig. 3

Location of ACROSS vibrators and borehole seismometers. a Location of the site where ACROSS was deployed (yellow star) and epicenter of two earthquakes, which are mentioned in the text (red stars). The area of the map (a) is indicated by a black square in map (b). c Location of the ACROSS vibrator and borehole seismometers on a vertical cross section. The yellow star indicates the ACROSS vibrator. The red and blue circles show the 800-m and 1700-m sensors, respectively

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