"The country (Kazakhstan) is the world’s second-largest miner of bitcoin after the United States. Bitcoin’s “hashrate” – the measure of computing power of machines plugged into its network – dropped by over 10% on Wednesday after Kazakhstan’s internet was shut off, according to crypto mining firm BTC.com."
That’s not exactly what “hash rate” means.
Hash rate is the process of “confirming” transactions to the block chain.
It takes significant processing power. Just being connected, or being a node, is very low bandwidth.
A lot of miners from China moved their operations to K. China banned Bitcoin transactions as of 12/31.