Easy. Zod uppercutted Superhuman to the top of a skyscraper. When Superman almost was at the top, he crashed into the building, created a crater, while still managing to clear the top of the building. To be specific, Superman would have traveled much further upward if he didn’t crash into the building.HV can melt thick steel in a couple of seconds.
Hela has no feats against that level of heat, not is there any significant evidence that she can withstand that level of heat.
Not even close to being as good as crushing Mjolnir with one hand.
See DT's comment.