Fig. 3.

Maximum posterior estimates of respective parameter functions (see text) of the hierarchical space-time ETAS model and b-values of the G-R frequency that are applied to the reprocessed JMA data (see Section 3) with earthquakes of M 4.0 or larger during the target period from 2000–2008; in addition, we use earthquakes of M 6.0 or larger from the precursory period of 1885–1999 as the occurrence history of the space-time ETAS model. The colors represent the estimated coefficient values of the parameter functions μ,K, α, p,q and b-values. The dimension of μ and K is the number of events per degree per day.