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Progress in Earth and Planetary Science
Fig. 6 | Progress in Earth and Planetary Science

Fig. 6

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. 6

Average change in dv/v associated with different events. Calculated differences between the average dv/v 1 month before and 1 month after each activity for a the 2011 Tohoku-oki earthquake and b the 2013 swarm activity. The average change in dv/v at the KOM station during the 2013 swarm activity was calculated during the different periods (1 October to 1 November 2012 and 1 June to 1 July 2013). Stations at which the average dv/v changes could not be obtained because of a lack of reliable dv/v values (i.e., there were fewer than 15 dv/v values with cross-correlation coefficients of 0.6 or greater within 1 month) are colored gray

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