would you mind telling us where you are getting your numbers from?
the only thing strange that i can find is from blockchain.info [1] which is showing a big drop from 25.6 EHS to 10.9 EHS which seems to be more like a bug to me since other sources are showing something else [2][3] from 28.3 to 27. EHS which is a negligible drop
[1] https://blockchain.info/charts/hash-rate
[2] https://charts.bitcoin.com/chart/hash-rate
[3] https://bitinfocharts.com/comparison/bitcoin-hashrate.html#3m
Another excellent resource. https://fork.lol/pow/hashrate
BR
Oh, I don't know about this resource before.
It's very useful service with more details.
Thanks for link!