Fig. 22From: Statistical study on the regional characteristics of seismic activity in and around Japan: frequency-magnitude distribution and tidal correlationRelationships between \(D\) and a, b \(b\) and c, d \(\eta\) for \(N=50\) and \(l=0.4^\circ\). (Left) Area A; (right) area B. Black and gray dots indicate the cases where the PDDs of the both indices are typical and where the PDDs of one of the two indices are abnormal, respectivelyBack to article page