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Progress in Earth and Planetary Science
Fig. 5 | Progress in Earth and Planetary Science

Fig. 5

From: Determination of temporal changes in seismic velocity caused by volcanic activity in and around Hakone volcano, central Japan, using ambient seismic noise records

Fig. 5

Estimated temporal changes in dv/v. a Changes in dv/v over time at each station. The color indicates the cross-correlation coefficient between the reference and individual ACFs. Only dv/v values with cross-correlation coefficients of 0.6 or greater are plotted. b Magnified plot of temporal change in dv/v at the OWD station between 1 January and 28 February 2013. Less reliable data for dv/v with cross-correlation coefficients of less than 0.6 are also plotted. Error bars in a and b indicate the standard deviations of dv/v estimated by the theoretical formulation of Weaver et al. (2011)

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