If you are asking 'what happened' please just follow ForexLive for all the impacting news, K?

Here is what moved it from earlier:

US is said to be about to release $200 China tariff list

Not a positive for AUD

A positive for yen

Hence …. AUD/JPY smashola:

The yen strength is hitting other yen crosses of course, lower across the board.

And as for the AUD weakness, that's that's hitting AUD crosses also, natch