Fig. 8From: Preliminary estimation of high-frequency (4–20 Hz) energy released from the 2016 Kumamoto, Japan, earthquake sequence Circles represent the time-lapse decay of the number of earthquakes that satisfy M JMA ≥ 3.0 in three different time periods. The regression lines are computed by fitting the Omori–Utsu law to the observed numbers of aftershocksBack to article page