It seems the biggest ETH Pool (https://ethermine.org/) is down for the last 4hrs. Does anyone confirms it is working again? What about all miners work of last 4hrs?

Some links (to check last 4h no updates):
https://etherchain.org/account/0xea674fdde714fd979de3edf0f56aa9716b898ec8 (last block mined 4hrs ago)
https://ethermine.org/stats (last block mined 4hrs ago)
https://ethermine.org/  (not updated for the last 4h)
https://twitter.com/etherchain_org (no confirmation on Twitter account if problem is solved)

cannot reach helpdesk either