On-chain analyst Willy Woo says a massive power outage in Chinese mining hub Xinjiang led to violent crash of Bitcoin down to $50,000.

Woo noted reports identifying the blackouts were published late last week, with the power outages happening to facilitate safety inspections as a response to a recent flooding accident at a local coal mine that saw 21 miners temporarily trapped underground after power and communications went down.

According to the data from Cambridge Bitcoin Energy Consumption Index, or BECI, Xinjiang represents nearly one-quarter of the global hash rate.

The analyst notes yesterday saw the largest daily fall in total Bitcoin network hash rate since November 2017, with hash rate plummeting from 172 million terahashes per second, or TH/s, to less roughly 154 million TH/s, according to Ycharts.

Well-known crypto market analyst, Willy Woo, has attributed the violent April 18 cryptocurrency crash to a sudden drop in hash rate resulting from a power outage in the Chinese region of Xinjiang.

Woo refers to 9,000 BTC that was transferred to Binance on April 16, speculating the funds were likely sent by a “whale with closer knowledge to happenings in China.”

Coupled with heavy selling in the quarterly futures markets, the downward momentum resulted in $4.9 billion worth of Bitcoin liquidations and a further $4.4 billion in margin calls in the altcoin markets — with a record 1 million accounts being liquidated.

However, not everyone agrees with Woo’s analysis, with Cinneanhaim Ventures partner, Adam Cochran, describing “the idea that a power outage last night in a mining region in China led to the dop in $BTC” as “utter nonsense.”

Woo said that long-term whales who rarely sell have been purchasing heavily amid the dip, adding that the lower $50,000 range is forming “the largest cluster of price discovery since BTC was below $10k.”

“Validation of BTC as a trillion dollar asset is immensely strong,” he said, adding that 13.5% of the entire BTC supply has been moved on-chain while Bitcoin’s market cap has exceeded $1 trillion.