Occurence: Incredible Hulk Annual #5

The Hulk is fighting Diablo, a creature made of smoke. He realizes the only way to stop him is to clap his hands. He claps his hands a couple times and on the last time, he blows away Diablo and everything else at ground level as his clap is said to be more powerful than the fiercest hurricane in history.

 

Hulk's Thunderclap Feats

Incredible Feats of the Hulk Main Page