Figure 5. Plot of average time-lapse changes in seismic noise (1-10 Hz and 10-50 Hz) from all channels against with Google mobility data from workplaces and transport, respectively. Each data point represents the averaged changes on a single day (the same days in Figure 1b and 4). The green dashed line indicates the linear correlation between mobility change and seismic noise change with a ratio of 1.49. The diagonal gray line indicates a ratio of 1.