They have been hitting the Bonins and Volcano Islands for some time now, ever since we got Saipan and Tinian. There have also been carrier raids.
But there is definitely a lull in Pacific operations right now. The Nimitz diary for today would fit on the back of a postcard. The series of amphibious operations and carrier raids that wiped out Japan’s maritime defenses is over. The current carrier raids don’t seem as momentous. Both side must be gearing up for the next big move.