Fig. 4From: Permutation entropy variations in seismic noise before and after eruptive activity at Shinmoedake volcano, Kirishima complex, JapanSame as in Fig. 2 for station KIOH (active only during the 2011 eruption) and for station SMET (active during both 2017 and 2018 eruptions). All other symbols are the same as in Fig. 2Back to article page