I've read those explanations of 'avalanche, thunder, earthquake, stampeding animals' before, but I think those are bunk. Most of those are far too rare to cause evolutionary pressure. Wolves, on the other hand... https://www.youtube.com/watch?v=UrU4OY6W1qE

Used for a nice effect in music too, in Ben Frost's the carpatians https://www.youtube.com/watch?v=qheTGTNxRVs

Try listening to that in a dark room!