Plumes of fire lit the sky. Molten lava scarred Krypton's surface.
6 seconds sound clip from Superman (1948) - Superman Comes To Earth (Chapter 1).
You can hear this line at 00:02:30.167 in the Blu-ray version of the episode.
Quote context
[...]
- Among the leaders was Jor-El, the foremost man of science.
- Jor-El's wife, Lara, inspired him in his feverish race to construct a trial spaceship.
- Now, giant subterranean pockets of gas exploded, touching off long-sealed volcanoes.
- Plumes of fire lit the sky. Molten lava scarred Krypton's surface.
- The fears of Jor-El and Lara were intensified by their concern for the safety of their infant son.
- Recently, a great tidal wave threatened to engulf our capital.
[...]