Fig. 4From: Classification of long-term very long period (VLP) volcanic earthquakes at Whakaari/White Island volcano, New ZealandTemporal variations in sub-families within a F1 and b F2 resulted from correlation threshold of r = 0.80 in the cluster tree. Note that a range of correlation distance is originally from 0 to 2, and y-scale is adjusted. All markers on the figure are the same in Fig. 3. The colours in both peak-to-peak amplitude and cluster tree correspondBack to article page