Gari (Naruto) using Explosion Release: Landmine Fist to detonate whatever he punches.
Zakuro (Ninja Scroll) can remotely detonate the gunpowder she manipulates, even after implanting them into living beings, causing extremely powerful explosions.
Nappa (Dragon Ball) using Volcano Explosion to disrupt the planet's geomagnetic field, creating a massive atomic explosion.
Mr. 5 (One Piece) can cause any part of his body, as well as his secretions and breath, to explode, thanks to him eating the Bomb-Bomb Fruit.
Gladius (One Piece) can cause any inorganic material he touches to rupture and explode with his Pop-Pop Fruit.
Guila (The Seven Deadly Sins) can create explosions.
After being hit with weird sciencey-beams from a meteorite, Nostalgia Critic (Channel Awesome) was granted the power to create explosions at will, taking on the superhero name "Sparky-Sparky-Boom Man."
Aoi Fukasaku (Coppelion) generates an explosion that destroys an aircraft.
Mana Tsuburaya (Coppelion), floating away before creating a huge explosion.
Using the Super Flare, Superman (DC Comics) releases all of the solar energy stored within his cells at once, creating a solar explosion powerful enough to incinerate everything within a quarter mile radius.
Segata Sanshiro (Sega) performs a judo throw that causes his opponent to explode twice upon hitting the ground.
Using Chaos Blast, Shadow the Hedgehog (Sonic the Hedgehog) unleashes a large explosion of Chaos energy.
Gor (The Brain from Planet Arous) could cause a whole city to explode just by thinking about it
Sticker Freak (Valkyrie Crusade) can induce explosions using her explosive stickers.
Hermione Granger (Harry Potter) using the Bombarda charm to create an explosion to blast open a sealed door.
Dolores Umbridge (Harry Potter) using the Bombarda Maxima charm to to provoke a large, violent explosion capable of demolishing a entire wall.
Most of Rolan’s (Marchen Awakens Romance) ÄRM cause explosions.
Zofis and Koko (Zatch Bell) are one of the 100 Mamodo teams fighting to become king. Zofis’ power is explosions.
Katsuki Bakugou (My Hero Academia) possesses the quirk "Explosion", allowing him to ignite the nitroglycerin-like sweat from his hands...
...creating explosions ranging from small, palm-sized to big enough to decimate a city block.
Yoshikage Kira's (JoJo's Bizarre Adventure: Diamond Is Unbreakable) stand, Killer Queen, can turn anything it touches into a bomb and detonate it.