Protecting Virtual Machines from Hyper-V : Replication From a Protected Site Hyper-V Server to a Recovery Site Microsoft Azure
  
Replication From a Protected Site Hyper-V Server to a Recovery Site Microsoft Azure
You can protect virtual machines to Microsoft Azure. The procedure is the same whether you intend to protect one virtual machine or multiple virtual machines.
When creating a VPG from Hyper-V to Azure the data is stored in a storage account and all replicated data from protected virtual machines to Azure is encrypted in the storage account. All recovery operations bring up the recovered machines in resource groups in Azure.
See also:
Requirements for Microsoft Azure Environments
VPGs Recovering to Azure Standard Storage and Premium Managed Disks
Converting Premium Virtual Machines for Protection
Protecting From Hyper-V - To a Microsoft Azure Recovery Site