The dollar fell to a five-month low versus the yen after an emergency 50 basis point cut in interest rates by the U.S. Federal Reserve was deemed insufficient to offset downside risks posed by the global spread of the coronavirus.
The greenback traded near the lowest in almost two years against the Swiss franc as investors flocked to traditional safe havens.
The euro was one of the currencies to benefit most from the broad-based dollar weakness as traders bet the Fed will cut rates more than the European Central Bank.
Disappointment that a Group of Seven statement on Tuesday did not lay out a specific response to a global slowdown caused by the coronavirus has reinforced the view among some investors that policymakers have fallen behind the curve.