Yes. And it will break away, acting as a safety valve of immense proportion. Twenty-thousand square miles of the Eearth's surface thrown out into space

Scientist  Dr. Steven Sorenson plans to tap the  energy of the Earth's interior by setting off a nuclear bomb deep within the Earth. But it goes wrong and starts causing large earthquakes all over the area.  It's nothing special just another crappy low budget 60's science fiction film. I'd watch When Worlds Collide over this.