Japan appears to have intervened in the yen overnight, and the US Treasury has now told banks to prepare for possible action.
A sharp yen rally can force carry trades to unwind, pushing investors to sell risk assets elsewhere. That may have added to the drop in BTC and ETH, but it is too early to say it caused it.
$BTC dropped below $63,000
$ETH dumped to $1,848
$50M longs liquidated in 45 minutes.
This came after US Treasury informed banks that it may intervene in yen market.