The Bank of Japan didn't rock the currency or the markets with its policy. The bank stated that their stance on easing will be dependent on the 2% inflation target being hit. They are looking to have the range in which they allow bond yields to move (currently floored at 0%), this will give some insights into the Bank's willingness to let rates rise when they feel comfortable with the direction inflation is heading.
In Europe we saw the Pound increase against the dollar as CPI came out better than estimated. The Bank of England is more on the fence with where policy is headed, with bullish indicators pointing to policy moving towards tightening, while the members are concerned about the looming Brexit implications.
This is a good reflection of the data dependency and tightening bias the markets are placing on it. This s a small example of a larger trend playing out, where investors are looking for yield as concerns arise over signs of weakness globally. Any indicators of a strong economy or higher inflation will see those respective currencies increase on rate anticipation.