The US dollar fell more than 40 pips in moments as USD/JPY fell to fresh lows on the day, hitting stops.
There was no headline behind the move, just a flush on stops in mediocre liquidity.
USDJPY intraday
As the selling hit USD/JPY, it spread to other crosses and in 20-40 pips moves right across the board. The yen crosses all crashed lower.
There’s chatter of a huge flow or some kind of fat finger.