Fig. 7From: Preliminary estimation of high-frequency (4–20 Hz) energy released from the 2016 Kumamoto, Japan, earthquake sequence Circles represent the magnitude–frequency distribution obtained for three different time periods using the JMA unified hypocenter catalog. The regression lines are computed by fitting the Gutenberg–Richter law to the observed numbers of aftershocks that satisfy M JMA ≥ 3.0Back to article page