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Earth, Planets and Space
Fig. 6 | Earth, Planets and Space

Fig. 6

From: Combined use of repeated active shots and ambient noise to detect temporal changes in seismic velocity: application to Sakurajima volcano, Japan

Fig. 6

Comparison between the results of the coda-wave interferometry analysis with those of the seismic interferometry analysis. The results from the seismic interferometry analysis (gray dots) are calculated by stacking the results for all station pairs. Error bars show ± one standard deviations. Those from the coda-wave interferometry analysis are mean values of relative velocity changes for the vertical component. The mean relative velocity changes calculated every other year (2011–2012, 2012–2013, 2012–2014) are shown by red square symbols. a Results for the different reference years (blue 2013 and green 2014). Stars indicate the reference year. b Results for the shots between 2013 and 2014 (green), 2011 and 2014 (blue), and 2011 and 2013 (cyan)

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