Dont panic, its 63213.65 now.
https://www.binance.us/en/trade/pro/BTC_USD
It is not clear whether this extreme volatility was caused by deliberate market manipulation or a costly mistake.
https://u.today/binanceus-names-real-reason-behind-87-percent-bitcoin-flash-crash
Abnormalities have also been observed on the Kraken exchange, where Bitcoin briefly dropped to the $54,000 level.