Overnight, the U.S. Federal Reserve said it would keep interest rates near zero until inflation is on track to overshoot the central bank's 2% target. Shares of buy-now-pay-later firm Afterpay APT.AX slumped 5.4%, while aerial imagery tech maker Nearmap NEA.AX lost nearly 4.5%. By Deepali Saxena Sept 17 (Reuters) - Australian shares ended more than 1% lower on Thursday, pressured by heavy losses in miners as iron ore prices tumbled for a third consecutive day, while New Zealand slipped as it entered its deepest economic slump on record.