Occurence: Incredible Hulk #300
When Bruce Banner voluntarily retreats
into his mind, letting the Hulk free to roam the city, unleashed.
When he starts to destroy the city, all the heroes try to
stop him. The Hulk claps his hands together and blows out
the Torch's flame and also knocks him unconscious.
Hulk's Thunderclap
Feats
Incredible
Feats of the Hulk Main Page