Hatsuya Kaitabi (A Certain Scientific Railgun) accelerating gravitons to cause aluminum objects to explode.
The Colossus Titan (Attack on Titan) can generate an enormous explosion by transforming from his human form to his Titan form.
Kanon Mitachi (Alive: The Final Evolution) using sound waves to detonate metal.
Bambietta (Bleach) can turn anything her Reishi touches/hits into a bomb.
Rei Ogami (Code:Breaker) using the Iridescence Explosive Flame of Hell: Asmodeus to create very powerful explosions.
Jackal's (Fairy Tail) explosions from his Bomb Curse are so powerful they can kill everyone caught in them.
Solf J. Kimblee's (Fullmetal Alchemist) alchemy allows him to turn anything into a bomb, even humans.
Shifu (Kung Fu Panda) using the Five-Fingered Blast Punch to detonate whatever he punches.
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 Bomu Bomu no Mi.
Gladius (One Piece) can cause any inorganic material he touches to rupture and explode with his Pamu Pamu no Mi.
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 an entire wall.
Phantom (Marchen Awakens Romance) can make his ÄRM, Allu Majuu explode whenever he wishes.
Most of Rolan’s (Marchen Awakens Romance) ÄRMs cause explosions. He belongs to the high Chess Piece rank of Knight where he's the 5th strongest.
Orb's (Marchen Awakens Romance) Nature ÄRM, Explode, encases his enemy in a ball which then detonates.
Guardian ÄRM, Á Bao A Qu (Marchen Awakens Romance) has the power to imprison opponents in a ball and when its master, Alviss gives the order "burst up" Á Bao A Qu will detonate the ball along with whoever’s inside.
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.
Tortunator (Pokémon) using "Shell Trap" to detonate his shell upon something make physical contact with it.
Yoshikage Kira's (JoJo's Bizarre Adventure Part IV Diamonds are Unbreakable) Killer Queen can turn anything or anyone into a bomb simply by touch.
Destroyer's (TF2 Freak) signature power is to cause explosions via channeling energy into his targets in order to detonate them.