What took all a while to go up is undone in a flash
Choppy times as USDJPY quickly drops back through 115.00 to 114.63.
USDJPY 15m chart
I'm not seeing any news to justify it yet. 114.50 is the main support here now. 115 will be hard work again.
As has been pointed out in the comments, (h/t Solange) US 10's hit a little air pocket with yields falling from 2.43% to 2.39%. That looks like a big trade going through.