At risk of/from something

Question

I looked it up in the dictionary and it was given this example:

Low-lying farmland may be at risk from flooding this weekend

It was also said that the use of of is generally allowed. So I was wondering whether or not

Low-lying farmland may be at risk of flooding this weekend

would be marked as grammatically correct.

Answer 1

They are both correct, but "at risk of" is actually a more common construction compared to "at risk from", see Ngram.

Ngram: "at risk of flooding", vs "at risk from flooding".