Tanks depth charges

“We’ll bring him to the surface soon enough,” Korsov stated.  Turning to his first mate, he gave the command to launch depth charges.
…
With the impact of the first explosion, Godzilla opened his huge maw and roared angrily.  Bubbles burst from the creature’s mouth, churning the sea around him into a froth.
A second and third explosion quickly followed.  None of them were enough to harm the monster, but Godzilla became as curious as he was annoyed.
The creature raised his reptilian eyes and headed for the ocean surface.