Note the price action in EURUSD 1.0810 ( vs. dip to 1.0799) and USDJPY 149.80 (vs 149.53 low) after whatever real money sell order was apparently filled and EURJPY bounced off its low.
As I have also noted, when USFJPY makes a sharp move and another currency lags badly or diverges, it is more often than not the result of an offset from a JPY cross.