User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-3146930-20130720154210/@comment-3146930-20130720191913

But with Jason, he flies by making the wind lift him or having it push him in various directions. Thalia has never tried to fly because she is afraid, but she also has control over wind. Her and Jason pretty much have similar powers, they just apply them differently.

Nico and Hazel on the other hand have vastly different powers, with Nico controlling the dead and Hazel controlling wealth, with some powers that are the same (they both seem to have a degree of Death Radar, with Nico's being better of course). They both also have some control over the earth, but Nico's seems more unfocused while Hazel uses it as her main form of attack. It just seems weird to me that she can control dirt under the earth, but not any dirt on the surface. If she could, you would think she would when she was kidnapped by the Kampe, even if it was by reflex.