Fig. 8From: A quest for unrest in multiparameter observations at Whakaari/White Island volcano, New Zealand 2007–2018a Cross Correlation Coefficient (CCC) derived from seismic noise interferometry and (b) % of lake level derived from InSAR. The black and red lines in (a) correspond to the daily mean values across different combinations of components (EN, EZ and ZN) smoothed using a Hodrick–Prescott filter with different values, 500,000 and 100,000,000, respectively. See Fig. 4 for the description of the vertical lines corresponding to key time periodsBack to article page