What caused the death of 32 people in the movie The Core?

In the movie "The Core," the death of 32 people is attributed to a catastrophic event caused by the Earth's core stopping its rotation. This disruption leads to a series of deadly phenomena, including massive earthquakes and severe electromagnetic disturbances. As the planet's magnetic field collapses, it results in widespread chaos and destruction, ultimately leading to the fatalities. The film emphasizes the importance of the Earth's core for maintaining life and stability on the surface.