Aftershock occurrence rate decay properties for intermediate and deep earthquake sequences

We perform a detailed analysis of seven aftershock sequences with intermedi ate- or deep-focus main-shocks occurring in the Aleutian Islands, Japan, th e Pamir-Hindu Kush (PHK), Tonga, and Bolivia. For each sequence we determin e the modified Omori law (MOL) p value and goodness of fit. For all sequenc es, we are able to find a time interval where the sequence conforms to MOL decay with either c = 0 or c variable. The two sequences with deep-focus ma inshocks have slightly larger p values than the intermediate depth sequence s. Despite the rarity of well defined intermediate or deep aftershock seque nces, neither the observed p values nor the overall sequence decay behavior significantly differ from that observed for shallow sequences.