The Ultraman: S1 E6 - Escape From The Deepest Sea

S1 E6: As people evacuate from a tsunami caused by an earthquake in the Pacific Ocean, a mysterious flying object appears and rains down fire. Mutsumi guesses that it could be the work of a monster that roamed the earth several hundred million years ago. Immediately afterwards, Lava Monster Firebadon appears along with an explosion from an undersea volcano.