The yen found a bid during the timezone here yesterday on the back of a data release:
That has long since dissipated, USD/JPY surged overnight. And, on a longer view:
As a heads up we have some data due from Japan very soon, at 2350 GMT:
Perhaps there will be another yen response today. I doubt it but could be wrong.
Meanwhile GBP/USD has hit its lowest in 2.5 years in morning Asia trade circa 1.1594