If a tree falls into your house is that usually covered by homeowner's insurance?

Or is that considered "an act of god". Actually this would be homeowner's and renter's insurance. My sister is the renter so I'm wondering if she'd be covered too. Just wondering what the norm is. She has State Farm.

The home owners insurance covers the tree and damages to the home owners property.

It will not cover the renter in any way. The renter has her own insurance, renters insurance, and her possessions are covered by that, but not the house itself.