Bitcoin Flash Crash Due to 'Market Overreaction' to 'Non-issue,' Analyst Says On 4/19/21 at 2:30 PM EDT Bitcoin plunged nearly 20% less than a week after reaching a new high as automatic sell orders kicked in, deepening the downturn and underscoring the cryptocurrency's volatility. Sunday's "flash crash," similar to wild computer-driven swings in the stock market, did no lasting harm, and Bitcoin's price quickly made up some of the loss. "A power outage in the Xinjiang region of China where a significant portion of Bitcoin mining takes place caused a very sudden dip in the global hashrate which, in turn, caused transactions to back up and fees to rocket temporarily," Jason Deane, Bitcoin analyst at Quantum Economics, London, told