Fig. 4From: Numerical earthquake model of the 20 April 2015 southern Ryukyu subduction zone M6.4 event and its impact on seismic hazard assessmentMap of the slip distribution projected onto the seabed surface. The epicenter is indicated by a black open star and the largest aftershock is marked by a white open star. Black arrows indicate the fault slip on each subfault. Warm colored circles indicate aftershocks with magnitudes between 1.52 and 5.99. Blue open stars are the epicenters of the 1994 to 2013 M L > 6 events listed in Table 1. The beach balls show the focal mechanisms determined by the RMTBack to article page